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.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f4pf-pgp4-f2r3 Exploit, Mitigation, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 5
- Cpes+1 CPE criteria (now 1)NVD modified 2026-10-20 15:33
- StatusUndergoing Analysis → AnalyzedNVD modified 2026-10-20 15:33
- StatusAwaiting Analysis → Undergoing AnalysisNVD modified 2026-10-16 18:17
- StatusReceived → Awaiting AnalysisNVD modified 2026-10-16 14:52
- First seenCVSS 8.7NVD modified 2026-10-16 03:18
Affected (CPE criteria) 1
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
References 2
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f4pf-pgp4-f2r3 Exploit, Mitigation, Vendor Advisory
- https://www.vulncheck.com/advisories/freerdp-before-3.32.0-heap-out-of-bounds-write-in-avc444-yuv444-combine Third Party Advisory