---
id: CVE-2026-111382
title: FreeRDP before 3.32.0 Heap Out-of-Bounds Write in AVC444 YUV444 Combine
summary: >-
  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 AVC4…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-787
vendor: FreeRDP
product: FreeRDP
affected:
  - FreeRDP < 3.32.0
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T01:17:51.334Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111382'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f4pf-pgp4-f2r3'
    label: GitHub Security Advisory (GHSA-f4pf-pgp4-f2r3)
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-before-3.32.0-heap-out-of-bounds-write-in-avc444-yuv444-combine
    label: >-
      VulnCheck Advisory: FreeRDP before 3.32.0 Heap Out-of-Bounds Write in
      AVC444 YUV444 Combine
tags:
  - cve.org
ingestedAt: '2026-10-16T01:55:57.991Z'
---

## Overview

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.

## Affected

- `FreeRDP < 3.32.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.