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ALSA-2026:61378 — Important: freerdp security update

Affected: AlmaLinux:10: freerdp, AlmaLinux:10: freerdp-devel, AlmaLinux:10: freerdp-libs, AlmaLinux:10: freerdp-server, AlmaLinux:10: libwinpr, AlmaLinux:10: libwinpr-devel

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox.

Security Fix(es):

* FreeRDP: FreeRDP: Resource exhaustion due to oversized chunked HTTP responses (CVE-2026-67297) * FreeRDP: FreeRDP: Memory disclosure or denial of service via crafted RDP update orders (CVE-2026-67301) * FreeRDP: FreeRDP: Denial of Service via crafted smartcard cache requests (CVE-2026-67288) * FreeRDP: FreeRDP: Denial of Service via heap out-of-bounds read (CVE-2026-67291) * FreeRDP: FreeRDP: Denial of Service due to RDPEI message processing (CVE-2026-67296) * FreeRDP: FreeRDP: Denial of Service via null pointer dereference in smartcard cleanup (CVE-2026-67304) * FreeRDP: FreeRDP: Denial of Service via integer underflow in RAIL channel handling (CVE-2026-67298) * FreeRDP: FreeRDP: Out-of-bounds memory access in Kerberos decryption (CVE-2026-73242) * FreeRDP: FreeRDP: Authentication bypass via incorrect RDSTLS PDU handling (CVE-2026-73241) * FreeRDP: FreeRDP: Denial of Service and heap corruption via malformed RDP audio PDU (CVE-2026-63652) * FreeRDP: FreeRDP: Heap-buffer-overflow allows arbitrary code execution via crafted RPC response (CVE-2026-55194) * freerdp: FreeRDP: Arbitrary code execution via heap buffer overflow in Opus audio decode (CVE-2026-63633) * FreeRDP: FreeRDP: Out-of-bounds read leads to denial of s…

EUVD-2026-352037

fkie_cve-2026-73241

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.30.0, FreeRDP server-side RDSTLS in libfreerdp/core/rdstls.c accepts an attacker-supplied RDSTLS_TYPE_CAPABILITIES PDU while rdstls_server_authenticate is waiting for RDSTLS_TYPE_AUTHREQ, leaving resultCode at RDSTLS_RESULT_SUCCESS and allowing a remote unauthenticated client to bypass the RedirectionGuid, username, domain, or password checks. This issue is fixed in version 3.30.0.

RHSA-2026:61378 — Red Hat Security Advisory: freerdp security update

FreeRDP: FreeRDP: Heap-buffer-overflow allows arbitrary code execution via crafted RPC response freerdp: FreeRDP: Arbitrary code execution via heap buffer overflow in Opus audio decode FreeRDP: FreeRDP: Denial of Service and heap corruption via malformed RDP audio PDU FreeRDP: FreeRDP: Denial of Service via crafted smartcard cache requests FreeRDP: FreeRDP: Denial of Service via heap out-of-bounds read FreeRDP: FreeRDP: Denial of Service due to RDPEI message processing FreeRDP: FreeRDP: Resource exhaustion due to oversized chunked HTTP responses FreeRDP: FreeRDP: Denial of Service via integer underflow in RAIL channel handling FreeRDP: FreeRDP: Memory disclosure or denial of service via crafted RDP update orders FreeRDP: FreeRDP: Denial of Service via null pointer dereference in smartcard cleanup FreeRDP: FreeRDP: Out-of-bounds read leads to denial of service and information disclosure FreeRDP: FreeRDP: Authentication bypass via incorrect RDSTLS PDU handling FreeRDP: FreeRDP: Out-of-bounds memory access in Kerberos decryption

RHSA-2026:68706 — Red Hat Security Advisory: freerdp security update

FreeRDP: FreeRDP: Heap-buffer-overflow allows arbitrary code execution via crafted RPC response freerdp: FreeRDP: Arbitrary code execution via heap buffer overflow in Opus audio decode FreeRDP: FreeRDP: Denial of Service and heap corruption via malformed RDP audio PDU FreeRDP: FreeRDP: Denial of Service via crafted smartcard cache requests FreeRDP: FreeRDP: Denial of Service via malformed media data FreeRDP: FreeRDP: Denial of Service via heap out-of-bounds read FreeRDP: FreeRDP: Denial of Service due to RDPEI message processing FreeRDP: FreeRDP: Resource exhaustion due to oversized chunked HTTP responses FreeRDP: FreeRDP: Denial of Service via integer underflow in RAIL channel handling FreeRDP: FreeRDP: Memory disclosure or denial of service via crafted RDP update orders FreeRDP: FreeRDP: Denial of Service via null pointer dereference in smartcard cleanup FreeRDP: FreeRDP: Out-of-bounds read leads to denial of service and information disclosure FreeRDP: FreeRDP: Authentication bypass via incorrect RDSTLS PDU handling FreeRDP: FreeRDP: Out-of-bounds memory access in Kerberos decryption

RLSA-2026:61378 — Important: freerdp security update

Affected: Rocky Linux:10: freerdp

Security Fix(es):

* FreeRDP: FreeRDP: Resource exhaustion due to oversized chunked HTTP responses (CVE-2026-67297)

* FreeRDP: FreeRDP: Memory disclosure or denial of service via crafted RDP update orders (CVE-2026-67301)

* FreeRDP: FreeRDP: Denial of Service via crafted smartcard cache requests (CVE-2026-67288)

* FreeRDP: FreeRDP: Denial of Service via heap out-of-bounds read (CVE-2026-67291)

* FreeRDP: FreeRDP: Denial of Service due to RDPEI message processing (CVE-2026-67296)

* FreeRDP: FreeRDP: Denial of Service via null pointer dereference in smartcard cleanup (CVE-2026-67304)

* FreeRDP: FreeRDP: Denial of Service via integer underflow in RAIL channel handling (CVE-2026-67298)

* FreeRDP: FreeRDP: Out-of-bounds memory access in Kerberos decryption (CVE-2026-73242)

* FreeRDP: FreeRDP: Authentication bypass via incorrect RDSTLS PDU handling (CVE-2026-73241)

* FreeRDP: FreeRDP: Denial of Service and heap corruption via malformed RDP audio PDU (CVE-2026-63652)

* FreeRDP: FreeRDP: Heap-buffer-overflow allows arbitrary code execution via crafted RPC response (CVE-2026-55194)

* freerdp: FreeRDP: Arbitrary code execution via heap buffer overflow in Opus audio decode (CVE-2026-63633)

* FreeRDP: FreeRDP: Out-of-bounds read leads to denial of service and informa…

UBUNTU-CVE-2026-73241

Affected: Ubuntu:16.04:LTS: freerdp, Ubuntu:Pro:18.04:LTS: freerdp2, Ubuntu:18.04:LTS: freerdp, Ubuntu:Pro:20.04:LTS: freerdp2, Ubuntu:22.04:LTS: freerdp2, Ubuntu:24.04:LTS: freerdp3, Ubuntu:Pro:24.04:LTS: freerdp2, Ubuntu:26.04:LTS: freerdp3

WID-SEC-W-2026-2776 — FreeRDP: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in FreeRDP ausnutzen, um Informationen offenzulegen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder einen Denial-of-Service-Zustand auszulösen.