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CVE-2026-111382GHSA-f4pf-pgp4-f2r3

FreeRDP before 3.32.0 Heap Out-of-Bounds Write in AVC444 YUV444 Combine

FreeRDP FreeRDP
CVSS
8.7High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.31%Chance of exploitation activity in the next 30 days, higher than 22% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in3.32.0Fixed versionCVE List
Published16 Oct 2026Updated 16 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

FreeRDP before 3.32.0 contains a client-side heap out-of-bounds write vulnerability in general_LumaToYUV444 and general_ChromaV2ToYUV444 that allows malicious RDP servers to corrupt client memory. Attackers can send RDPGFX AVC444 or AVC444v2 frames with odd-height region rects ending at surface height to write past U/V planes, enabling heap corruption and potential code execution.

Text from CVE List

Affected versions 2

  • FreeRDPaffected: all versions before 3.32.0CVE List
  • FreeRDPunaffected: 3.32.0CVE List

References 2