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ALSA-2026:54486 — 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: Remote code execution or denial of service via heap-based buffer overflow (CVE-2026-64620) * FreeRDP: FreeRDP: Double-free vulnerability via crafted .rdp file leading to potential remote code execution (CVE-2026-64621) * FreeRDP: FreeRDP: Arbitrary code execution via malicious RDP files (CVE-2026-64624) * FreeRDP: FreeRDP: Denial of Service via crafted WindowIcon async message (CVE-2026-67299) * FreeRDP: FreeRDP: HTTP Proxy Request Injection via Redirection (CVE-2026-67289) * FreeRDP: FreeRDP: Remote code execution or denial of service via audio input integer overflow (CVE-2026-68580)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

bdu:2026-10165

EUVD-2026-340359

fkie_cve-2026-64621

FreeRDP before 3.28.0 (affected 3.x through 3.27.1) contains a double-free vulnerability in freerdp_client_rdp_file_apply_to_settings() (client/common/file.c) when parsing the selectedmonitors field of a .rdp connection file. The MonitorIds array is allocated through the settings object, and a raw non-owning pointer to it is freed on the strtoul error path without clearing settings->MonitorIds, leaving it dangling; at teardown freerdp_settings_free() frees the same buffer again. An attacker who convinces a victim to open a crafted .rdp file with oversized monitor tokens can trigger a size-controlled double-free in any FreeRDP CLI client (xfreerdp/sdl-freerdp/wlfreerdp) in the default configuration.

GHSA-7pv2-4c55-cg52

RHSA-2026:54486 — Red Hat Security Advisory: freerdp security update

FreeRDP: FreeRDP: Remote code execution or denial of service via heap-based buffer overflow FreeRDP: FreeRDP: Double-free vulnerability via crafted .rdp file leading to potential remote code execution FreeRDP: FreeRDP: Arbitrary code execution via malicious RDP files FreeRDP: FreeRDP: HTTP Proxy Request Injection via Redirection FreeRDP: FreeRDP: Denial of Service via crafted WindowIcon async message FreeRDP: FreeRDP: Remote code execution or denial of service via audio input integer overflow

RHSA-2026:58711 — Red Hat Security Advisory: freerdp security update

RLSA-2026:54486 — Important: freerdp security update

Affected: Rocky Linux:10: freerdp

Security Fix(es):

* FreeRDP: FreeRDP: Remote code execution or denial of service via heap-based buffer overflow (CVE-2026-64620)

* FreeRDP: FreeRDP: Double-free vulnerability via crafted .rdp file leading to potential remote code execution (CVE-2026-64621)

* FreeRDP: FreeRDP: Arbitrary code execution via malicious RDP files (CVE-2026-64624)

* FreeRDP: FreeRDP: Denial of Service via crafted WindowIcon async message (CVE-2026-67299)

* FreeRDP: FreeRDP: HTTP Proxy Request Injection via Redirection (CVE-2026-67289)

* FreeRDP: FreeRDP: Remote code execution or denial of service via audio input integer overflow (CVE-2026-68580)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

UBUNTU-CVE-2026-64621

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-2026-2209 — FreeRDP: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in FreeRDP ausnutzen, um beliebigen Programmcode auszuführen, um einen Denial of Service Angriff durchzuführen, und um Informationen offenzulegen.