Vulnerability-Lookup

OESA-2026-4162 (CVE-2026-91781)

Vulnerability from osv_openeuler – Published: 2026-09-30 13:47 – Updated: 2026-09-30 13:47 – Source website

Summary

gdb security update

Details

GDB, the GNU Project debugger, allows you to see what is going on inside another program while it executes -- or what another program was doing at the moment it crashed.

Security Fix(es):

A security vulnerability has been detected in GNU Binutils 2.47. Affected is the function elf_x86_64_common_section_index of the file bfd/elf64-x86-64.c of the component ELF Section Handler. The manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. Upgrading to version 2.48 is able to address this issue. The identifier of the patch is 7322e9bc30cb282575a701c307851fd3d66fee68. It is suggested to upgrade the affected component.(CVE-2026-91781)

Severity

3.3 (Low)


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

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-91781	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "gdb-14.1-15.oe2403sp3.aarch64.rpm",
          "gdb-debuginfo-14.1-15.oe2403sp3.aarch64.rpm",
          "gdb-debugsource-14.1-15.oe2403sp3.aarch64.rpm",
          "gdb-gdbserver-14.1-15.oe2403sp3.aarch64.rpm",
          "gdb-headless-14.1-15.oe2403sp3.aarch64.rpm"
        ],
        "noarch": [
          "gdb-help-14.1-15.oe2403sp3.noarch.rpm"
        ],
        "src": [
          "gdb-14.1-15.oe2403sp3.src.rpm"
        ],
        "x86_64": [
          "gdb-14.1-15.oe2403sp3.x86_64.rpm",
          "gdb-debuginfo-14.1-15.oe2403sp3.x86_64.rpm",
          "gdb-debugsource-14.1-15.oe2403sp3.x86_64.rpm",
          "gdb-gdbserver-14.1-15.oe2403sp3.x86_64.rpm",
          "gdb-headless-14.1-15.oe2403sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP3",
        "name": "gdb",
        "purl": "pkg:rpm/openEuler/gdb\u0026distro=openEuler-24.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "14.1-15.oe2403sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Low"
  },
  "details": "GDB, the GNU Project debugger, allows you to see what is going on inside another program while it executes -- or what another program was doing at the moment it crashed.\r\n\r\nSecurity Fix(es):\n\nA security vulnerability has been detected in GNU Binutils 2.47. Affected is the function elf_x86_64_common_section_index of the file bfd/elf64-x86-64.c of the component ELF Section Handler. The manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. Upgrading to version 2.48 is able to address this issue. The identifier of the patch is 7322e9bc30cb282575a701c307851fd3d66fee68. It is suggested to upgrade the affected component.(CVE-2026-91781)",
  "id": "OESA-2026-4162",
  "modified": "2026-09-30T13:47:12Z",
  "published": "2026-09-30T13:47:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4162"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91781"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "gdb security update",
  "upstream": [
    "CVE-2026-91781"
  ]
}

CVE-2026-91781 (GCVE-0-2026-91781)

Vulnerability from cvelistv5 – Published: 2026-09-15 08:45 – Updated: 2026-09-15 13:39 X_Open Source

Title

GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index null pointer dereference

Summary

Severity

4.8 (Medium)


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

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

3.3 (Low)


                        
                          CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-15 13:39 UTC

CWE

CWE-476 - NULL Pointer Dereference
CWE-404 - Denial of Service

Assigner

VulDB mitre root Scorecard

References

8 references

URL	Tags
https://vuldb.com/vuln/404052	vdb-entrytechnical-description
https://vuldb.com/vuln/404052/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-91781	third-party-advisory
https://vuldb.com/submit/933336	third-party-advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=34449	issue-tracking
https://github.com/Ech06/CVE_submit/tree/main/bug…	exploit
https://sourceware.org/git/gitweb.cgi?p=binutils-…	broken-linkpatch
https://www.gnu.org/	broken-linkproduct

Impacted products

1 product

Vendor	Product	Version
GNU	Binutils	Affected: 2.47 Unaffected: 2.48 cpe:2.3:a:gnu:binutils::::::::

Credits

Ech06 (VulDB User)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-91781",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-15T13:39:03.939059Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-15T13:39:13.272Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:gnu:binutils:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "ELF Section Handler"
          ],
          "product": "Binutils",
          "vendor": "GNU",
          "versions": [
            {
              "status": "affected",
              "version": "2.47"
            },
            {
              "status": "unaffected",
              "version": "2.48"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Ech06 (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A security vulnerability has been detected in GNU Binutils 2.47. Affected is the function elf_x86_64_common_section_index of the file bfd/elf64-x86-64.c of the component ELF Section Handler. The manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. Upgrading to version 2.48 is able to address this issue. The identifier of the patch is 7322e9bc30cb282575a701c307851fd3d66fee68. It is suggested to upgrade the affected component."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 1.7,
            "vectorString": "AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "NULL Pointer Dereference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-404",
              "description": "Denial of Service",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
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      "providerMetadata": {
        "dateUpdated": "2026-09-15T08:45:14.192Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-404052 | GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index null pointer dereference",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/404052"
        },
        {
          "name": "VDB-404052 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/404052/cti"
        },
        {
          "name": "CVE-2026-91781 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-91781"
        },
        {
          "name": "Submit #933336 | GNU GNU Binutils binutils 2.47 NULL Pointer Dereference",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/933336"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=34449"
        },
        {
          "tags": [
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          "url": "https://github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34449"
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        {
          "tags": [
            "broken-link",
            "patch"
          ],
          "url": "https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=7322e9bc30cb282575a701c307851fd3d66fee68"
        },
        {
          "tags": [
            "broken-link",
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      ],
      "tags": [
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      "timeline": [
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          "value": "Advisory disclosed"
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        {
          "lang": "en",
          "time": "2026-09-15T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-09-15T04:06:33.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index null pointer dereference",
      "x_generator": [
        "VulDB PVTS v202609"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-91781",
    "datePublished": "2026-09-15T08:45:14.192Z",
    "dateReserved": "2026-09-15T02:01:16.001Z",
    "dateUpdated": "2026-09-15T13:39:13.272Z",
    "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.
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OESA-2026-4162 (CVE-2026-91781)

CVE-2026-91781 (GCVE-0-2026-91781)

Tags

Sightings

Nomenclature

Related by attack behaviour