CVE-2026-111382
FreeRDP before 3.32.0 Heap Out-of-Bounds Write in AVC444 YUV444 Combine
- State
- Published
- Severity
- 8.7 High
- Published
- Oct 16, 2026
- Updated
- Oct 16, 2026
- Reserved
- Oct 15, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | 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 | VulnCheck |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-787 Out-of-bounds Write
Affected Products
| Product | Versions |
|---|---|
FreeRDPFreeRDP |
|
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 Combinethird-party-advisory
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