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Vulnerabilities

Vulnerability · CVE-2026-109946

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.

Published Oct 13, 2026 · catalog updated Oct 18, 2026 · FreeRDP 3.11.0 before 3.32.0

Check if you run it

No confirmed exploitation is on record for CVE-2026-109946. EPSS is 0.27%. Act only if a listed version of FreeRDP 3.11.0 before 3.32.0 is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (FreeRDP 3.11.0 before 3.32.0).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.27%
Remediation
Advisory link
Affected products
Debian:12 freerdp2 · Debian:13 freerdp3 · Debian:14 freerdp3

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Debian:12 freerdp22.10.0+dfsg1-1, 2.10.0+dfsg1-1.1, 2.11.2+dfsg1-1
  • Debian:13 freerdp33.15.0+dfsg-2.1, 3.15.0+dfsg-2.1+deb13u1, 3.15.0+dfsg-2.1+deb13u2
  • Debian:14 freerdp30 → 3.32.0+dfsg-1

How to fix CVE-2026-109946

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-109946. EPSS is 0.27%. Act only if a listed version of FreeRDP 3.11.0 before 3.32.0 is installed.

Which versions are affected?

Compare what you have installed with 2.10.0+dfsg1-1, 2.10.0+dfsg1-1.1, 2.11.2+dfsg1-1, 3.15.0+dfsg-2.1, 3.15.0+dfsg-2.1+deb13u1, 3.15.0+dfsg-2.1+deb13u2, 0 → 3.32.0+dfsg-1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-617. EPSS 0.27%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Debian security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 13, 2026 · Catalog

    Detected

  2. Oct 14, 2026 · Catalog

    Fix available

    Debian:14 freerdp3 0 → 3.32.0+dfsg-1

  3. Oct 14, 2026 · Catalog

    Updated

  4. Oct 14, 2026 · NIST NVD

    Updated

    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.

  5. Oct 18, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-109946

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-109946

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2026-109946

    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

    nvd.nist.gov
  • OpenSSF OSV / OSV ScannerPackage advisoryDEBIAN-CVE-2026-109946
    osv.dev

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.