Vulnerability · Published Oct 16, 2026 · Assigned by VulnCheck
CVE-2026-111382FreeRDP before 3.32.0 Heap Out-of-Bounds Write in AVC444 YUV444 Combine
High 8.8
In plain English
A high-severity out-of-bounds write in FreeRDP from FreeRDP. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | freerdp | 2:3.32.2-1.el10_2 | ALSA-2026:94514 |
| AlmaLinux:10 | freerdp-devel | 2:3.32.2-1.el10_2 | ALSA-2026:94514 |
| AlmaLinux:10 | freerdp-libs | 2:3.32.2-1.el10_2 | ALSA-2026:94514 |
| AlmaLinux:10 | freerdp-server | 2:3.32.2-1.el10_2 | ALSA-2026:94514 |
| AlmaLinux:10 | libwinpr | 2:3.32.2-1.el10_2 | ALSA-2026:94514 |
| AlmaLinux:10 | libwinpr-devel | 2:3.32.2-1.el10_2 | ALSA-2026:94514 |
| Debian:12 | freerdp2 | no fix listed | DEBIAN-CVE-2026-111382 |
| Debian:13 | freerdp3 | no fix listed | DEBIAN-CVE-2026-111382 |
| Debian:14 | freerdp3 | 3.32.0+dfsg-1 | DEBIAN-CVE-2026-111382 |
| Rocky Linux:10 | freerdp | 2:3.32.2-1.el10_2 | RLSA-2026:94514 |
| Ubuntu:22.04:LTS | freerdp2 | no fix listed | UBUNTU-CVE-2026-111382 |
| Ubuntu:24.04:LTS | freerdp3 | 3.32.0+dfsg-0ubuntu0.24.04.1 | UBUNTU-CVE-2026-111382 |
| Ubuntu:26.04:LTS | freerdp3 | 3.32.0+dfsg-0ubuntu0.26.04.1 | UBUNTU-CVE-2026-111382 |
Affected products (as reported)
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- GitHub Security Advisory (GHSA-f4pf-pgp4-f2r3) vendor-advisory
- VulnCheck Advisory: FreeRDP before 3.32.0 Heap Out-of-Bounds Write in AVC444 YUV444 Combine third-party-advisory