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VULNERABILITIES

CVE-2026-109946 Details

Description

FreeRDP 3.11.0 before 3.32.0 does not validate that AVC444 and AVC444v2 region widths are even before YUV444 conversion, so an odd width reaches an assertion and aborts the client. A malicious or compromised RDP server can terminate a connected FreeRDP client after RDPGFX AVC444 negotiation by sending an in-bounds region rectangle with an odd width.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-97pf-pwp3-2wrv CISA-ADPExploitVendor Advisory
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-97pf-pwp3-2wrv [email protected]ExploitVendor Advisory
https://www.vulncheck.com/advisories/freerdp-3.11.0-before-3.32.0-reachable-assertion-via-avc444-odd-region-width [email protected]Third Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-617Reachable Assertion[email protected]

Affected Products

ProductVersions
freerdp freerdp
>= 3.11.0, < 3.32.0

CPE

  • cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-109946
NVD Published Date:
Oct 13, 2026
NVD Last Modified:
Oct 21, 2026
Source:
[email protected]
CVE-2026-109946 Details - Not Deferred