Vulnerability-Lookup

RHSA-2026:71387

Vulnerability from csaf_opensuse - Published: 2026-09-24 00:00 - Updated: 2026-10-09 09:46

Summary

security update for freerdp

Severity

Important

Notes

Title of the patch: security update for freerdp

Description of the patch: This security update provides a functional equivalent of RHSA-2026:71387. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2026:71387.

Patchnames: RHSA-2026:71387

CVE-2026-55194

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Recommended 9 products

Product	Version	Remediation
Unresolved product id: SUSE Liberty Linux 9.6 EMS:freerdp-2:2.11.7-1.el9_6.13.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.x86_64	—	Vendor Fix

Threats

Impact important

CVE-2026-67288

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Recommended 9 products, the same list as for CVE-2026-55194

Threats

Impact important

CVE-2026-67291

6.5 (Medium)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H

Affected products

Recommended 9 products, the same list as for CVE-2026-55194

Threats

Impact moderate

CVE-2026-67301

6.5 (Medium)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H

Affected products

Recommended 9 products, the same list as for CVE-2026-55194

Threats

Impact moderate

References

16 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/r…	self
https://lists.suse.com/pipermail/suse-liberty-lin…	self
https://lists.suse.com/pipermail/suse-liberty-lin…	self
https://www.suse.com/security/cve/CVE-2026-55194/	self
https://www.suse.com/security/cve/CVE-2026-67288/	self
https://www.suse.com/security/cve/CVE-2026-67291/	self
https://www.suse.com/security/cve/CVE-2026-67301/	self
https://www.suse.com/security/cve/CVE-2026-55194	external
https://bugzilla.suse.com/1276373	external
https://www.suse.com/security/cve/CVE-2026-67288	external
https://bugzilla.suse.com/1273247	external
https://www.suse.com/security/cve/CVE-2026-67291	external
https://bugzilla.suse.com/1273326	external
https://www.suse.com/security/cve/CVE-2026-67301	external
https://bugzilla.suse.com/1273416	external

JSON

To clipboard

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  "vulnerabilities": [
    {
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      ],
      "notes": [
        {
          "category": "general",
          "text": "FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, rpc_client_recv_fragment in libfreerdp/core/gateway/rpc_client.c ensures the response reassembly stream capacity using only the server-declared alloc_hint rather than the actual StubLength about to be written. A malicious TS Gateway can send a PTYPE_RESPONSE with a small alloc_hint and a much larger frag_length, causing Stream_Write to copy attacker-controlled stub data beyond the 4096-byte pdu-\u003es buffer. This can crash the client and may permit code execution through heap corruption. This issue is fixed in version 3.27.0.",
          "title": "CVE description"
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      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
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            "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-09-24T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-55194"
    },
    {
      "cve": "CVE-2026-67288",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-67288"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "FreeRDP before 3.29.0 contains a null pointer dereference vulnerability in smartcard cache request decoders that accept NULL NDR pointers for LookupName in SCARD_IOCTL_READCACHEA and SCARD_IOCTL_WRITECACHEA operations. When smartcard emulation is enabled, attackers can send crafted smartcard cache requests with NULL lookup-name pointers to trigger strlen() on a null pointer, causing client process termination.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
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          "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.i686",
          "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.x86_64",
          "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.i686",
          "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.x86_64",
          "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.i686",
          "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.x86_64",
          "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.i686",
          "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-67288",
          "url": "https://www.suse.com/security/cve/CVE-2026-67288"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1273247 for CVE-2026-67288",
          "url": "https://bugzilla.suse.com/1273247"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Liberty Linux 9.6 EMS:freerdp-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Liberty Linux 9.6 EMS:freerdp-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-09-24T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-67288"
    },
    {
      "cve": "CVE-2026-67291",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-67291"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "FreeRDP before 3.29.0 (affected versions \u003c= 3.28.0) contains a heap out-of-bounds read in update_process_glyph_fragments()/glyph_cache_fragment_put() in libfreerdp/cache/glyph.c. When handling a GLYPH_FRAGMENT_ADD update, the code reads a one-byte server-controlled declared fragment size but does not verify it fits within the remaining received buffer before allocating and copying that many bytes. A malicious RDP server can send a short fragment with an oversized declared size, causing the client to read beyond the allocated buffer, resulting in an out-of-bounds read and client crash.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.i686",
          "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.x86_64",
          "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.i686",
          "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.x86_64",
          "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.i686",
          "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.x86_64",
          "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.i686",
          "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-67291",
          "url": "https://www.suse.com/security/cve/CVE-2026-67291"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1273326 for CVE-2026-67291",
          "url": "https://bugzilla.suse.com/1273326"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Liberty Linux 9.6 EMS:freerdp-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.x86_64"
          ]
        }
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            "version": "3.1"
          },
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            "SUSE Liberty Linux 9.6 EMS:freerdp-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-09-24T00:00:00Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2026-67291"
    },
    {
      "cve": "CVE-2026-67301",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-67301"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "FreeRDP before 3.29.0 contains out-of-bounds read vulnerabilities in the async update message proxy for the PolygonSC and PolygonCB primary drawing orders. When AsyncUpdate is enabled (e.g., xfreerdp /async-update), update_message_PolygonSC() and update_message_PolygonCB() allocate a fresh points array but copy point data from the address of the order structure instead of from polygonSC-\u003epoints / polygonCB-\u003epoints, resulting in a client-side out-of-bounds read. A malicious or compromised RDP server sending crafted PolygonSC/PolygonCB update orders can trigger memory disclosure or a client crash.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "SUSE Liberty Linux 9.6 EMS:freerdp-2:2.11.7-1.el9_6.13.x86_64",
          "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.i686",
          "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.x86_64",
          "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.i686",
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          "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.i686",
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          "url": "https://www.suse.com/security/cve/CVE-2026-67301"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1273416 for CVE-2026-67301",
          "url": "https://bugzilla.suse.com/1273416"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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            "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Liberty Linux 9.6 EMS:freerdp-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:freerdp-devel-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:freerdp-libs-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-2:2.11.7-1.el9_6.13.x86_64",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.i686",
            "SUSE Liberty Linux 9.6 EMS:libwinpr-devel-2:2.11.7-1.el9_6.13.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-09-24T00:00:00Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2026-67301"
    }
  ]
}

CVE-2026-55194 (GCVE-0-2026-55194)

Vulnerability from cvelistv5 – Published: 2026-08-19 17:50 – Updated: 2026-08-27 16:25

Title

FreeRDPHeap-buffer-overflow write in TS Gateway RPC RESPONSE reassembly due to alloc_hint capacity mismatch

Summary

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, rpc_client_recv_fragment in libfreerdp/core/gateway/rpc_client.c ensures the response reassembly stream capacity using only the server-declared alloc_hint rather than the actual StubLength about to be written. A malicious TS Gateway can send a PTYPE_RESPONSE with a small alloc_hint and a much larger frag_length, causing Stream_Write to copy attacker-controlled stub data beyond the 4096-byte pdu->s buffer. This can crash the client and may permit code execution through heap corruption. This issue is fixed in version 3.27.0.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-21 03:55 UTC

CWE

CWE-122 - Heap-based Buffer Overflow

Assigner

GitHub_M mitre root Scorecard

References

4 references

URL	Tags
https://github.com/FreeRDP/FreeRDP/security/advis…	x_refsource_CONFIRM
https://github.com/FreeRDP/FreeRDP/pull/12873	x_refsource_MISC
https://github.com/FreeRDP/FreeRDP/commit/9f2da52…	x_refsource_MISC
https://github.com/FreeRDP/FreeRDP/releases/tag/3.27.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
FreeRDP	FreeRDP	Affected: < 3.27.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-55194",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-21T03:55:49.884406Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2026-08-27T16:25:00.719Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "FreeRDP",
          "vendor": "FreeRDP",
          "versions": [
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            }
          ]
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          "value": "FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, rpc_client_recv_fragment in libfreerdp/core/gateway/rpc_client.c ensures the response reassembly stream capacity using only the server-declared alloc_hint rather than the actual StubLength about to be written. A malicious TS Gateway can send a PTYPE_RESPONSE with a small alloc_hint and a much larger frag_length, causing Stream_Write to copy attacker-controlled stub data beyond the 4096-byte pdu-\u003es buffer. This can crash the client and may permit code execution through heap corruption. This issue is fixed in version 3.27.0."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
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            "vulnAvailabilityImpact": "HIGH",
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            "vulnIntegrityImpact": "HIGH"
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      ],
      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-122",
              "description": "CWE-122: Heap-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
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          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-19T17:50:30.158Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9gxm-3mf5-f5cx",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9gxm-3mf5-f5cx"
        },
        {
          "name": "https://github.com/FreeRDP/FreeRDP/pull/12873",
          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/FreeRDP/FreeRDP/pull/12873"
        },
        {
          "name": "https://github.com/FreeRDP/FreeRDP/commit/9f2da52c2341cc14a96ad12e69c5b83d0bcd8b5a",
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        },
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      "source": {
        "advisory": "GHSA-9gxm-3mf5-f5cx",
        "discovery": "UNKNOWN"
      },
      "title": "FreeRDPHeap-buffer-overflow write in TS Gateway RPC RESPONSE reassembly due to alloc_hint capacity mismatch"
    }
  },
  "cveMetadata": {
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  "dataVersion": "5.2"
}

CVE-2026-67288 (GCVE-0-2026-67288)

Vulnerability from cvelistv5 – Published: 2026-08-01 12:22 – Updated: 2026-08-03 19:49

Title

FreeRDP before 3.29.0 Denial of Service via smartcard cache

Summary

FreeRDP before 3.29.0 contains a null pointer dereference vulnerability in smartcard cache request decoders that accept NULL NDR pointers for LookupName in SCARD_IOCTL_READCACHEA and SCARD_IOCTL_WRITECACHEA operations. When smartcard emulation is enabled, attackers can send crafted smartcard cache requests with NULL lookup-name pointers to trigger strlen() on a null pointer, causing client process termination.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-03 19:47 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

VulnCheck mitre root Scorecard

References

5 references

URL	Tags
https://github.com/FreeRDP/FreeRDP/security/advis…	vendor-advisory
https://github.com/FreeRDP/FreeRDP/commit/f3b4347…	patch
https://github.com/FreeRDP/FreeRDP/commit/5370fb2…	patch
https://www.vulncheck.com/advisories/freerdp-befo…	third-party-advisory
https://github.com/FreeRDP/FreeRDP/security/advis…	exploit

Impacted products

1 product

Vendor	Product	Version
FreeRDP	FreeRDP	Affected: 0 , < 3.29.0 (semver) Unaffected: 3.29.0 (semver) cpe:2.3:a:freerdp:freerdp::::::::

Date Public

2026-07-15 00:00

Credits

1121984919

Show details on NVD website

JSON

To clipboard

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CVE-2026-67291 (GCVE-0-2026-67291)

Vulnerability from cvelistv5 – Published: 2026-08-01 12:22 – Updated: 2026-08-03 14:56

Title

FreeRDP before 3.29.0 Heap Out-of-Bounds Read via GLYPH_FRAGMENT_ADD

Summary

FreeRDP before 3.29.0 (affected versions <= 3.28.0) contains a heap out-of-bounds read in update_process_glyph_fragments()/glyph_cache_fragment_put() in libfreerdp/cache/glyph.c. When handling a GLYPH_FRAGMENT_ADD update, the code reads a one-byte server-controlled declared fragment size but does not verify it fits within the remaining received buffer before allocating and copying that many bytes. A malicious RDP server can send a short fragment with an oversized declared size, causing the client to read beyond the allocated buffer, resulting in an out-of-bounds read and client crash.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-03 14:56 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

VulnCheck mitre root Scorecard

References

3 references

URL	Tags
https://github.com/FreeRDP/FreeRDP/security/advis…	vendor-advisory
https://github.com/FreeRDP/FreeRDP/commit/f3b4347…	patch
https://www.vulncheck.com/advisories/freerdp-befo…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
FreeRDP	FreeRDP	Affected: 0 , < 3.29.0 (semver) Unaffected: 3.29.0 (semver) cpe:2.3:a:freerdp:freerdp::::::::

Date Public

2026-07-15 00:00

Credits

1121984919

Show details on NVD website

JSON

To clipboard

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CVE-2026-67301 (GCVE-0-2026-67301)

Vulnerability from cvelistv5 – Published: 2026-08-01 12:22 – Updated: 2026-08-03 18:23

Title

FreeRDP before 3.29.0 Out-of-bounds Read via Polygon async message-proxy

Summary

FreeRDP before 3.29.0 contains out-of-bounds read vulnerabilities in the async update message proxy for the PolygonSC and PolygonCB primary drawing orders. When AsyncUpdate is enabled (e.g., xfreerdp /async-update), update_message_PolygonSC() and update_message_PolygonCB() allocate a fresh points array but copy point data from the address of the order structure instead of from polygonSC->points / polygonCB->points, resulting in a client-side out-of-bounds read. A malicious or compromised RDP server sending crafted PolygonSC/PolygonCB update orders can trigger memory disclosure or a client crash.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-03 18:23 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

VulnCheck mitre root Scorecard

References

3 references

URL	Tags
https://github.com/FreeRDP/FreeRDP/security/advis…	vendor-advisory
https://github.com/FreeRDP/FreeRDP/commit/5370fb2…	patch
https://www.vulncheck.com/advisories/freerdp-befo…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
FreeRDP	FreeRDP	Affected: 0 , < 3.29.0 (semver) Unaffected: 3.29.0 (semver) cpe:2.3:a:freerdp:freerdp::::::::

Date Public

2026-07-15 00:00

Show details on NVD website

JSON

To clipboard

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        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-vxp3-7g6q-rq2w)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-vxp3-7g6q-rq2w"
        },
        {
          "name": "Patch Commit",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/FreeRDP/FreeRDP/commit/5370fb26fbf034ecd11d3026b6ad639b5fff493f"
        },
        {
          "name": "VulnCheck Advisory: FreeRDP before 3.29.0 Out-of-bounds Read via Polygon async message-proxy",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/freerdp-before-out-of-bounds-read-via-polygon-async-message-proxy"
        }
      ],
      "title": "FreeRDP before 3.29.0 Out-of-bounds Read via Polygon async message-proxy",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-67301",
    "datePublished": "2026-08-01T12:22:16.955Z",
    "dateReserved": "2026-07-29T13:04:41.947Z",
    "dateUpdated": "2026-08-03T18:23:49.082Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

RHSA-2026:71387

CVE-2026-55194 (GCVE-0-2026-55194)

CVE-2026-67288 (GCVE-0-2026-67288)

CVE-2026-67291 (GCVE-0-2026-67291)

CVE-2026-67301 (GCVE-0-2026-67301)

Tags

Sightings

Nomenclature

Related by attack behaviour