CVE-2026-111382 HIGH

CVE-2026-111382: FreeRDP before 3.32.0 Heap Out-of-Bounds Write in AVC444 YUV444 Combine

Vendor Freerdp
Product FreeRDP
Weakness CWE-787
Published October 16, 2026
Last update October 16, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 16, 2026 CVE published