FreeRDP 3.29.0 before 3.32.0 contains a double free in the client's async-update message proxy, which shallow-copies the parser-owned PolygonSC or PolygonCB points array when numPoints is zero, so both the queue consumer and parser cleanup free it. A malicious RDP server can send a point-bearing polygon order followed by a zero-point order to crash a client with +async-update enabled.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pg3f-chj4-mrw6 Exploit, Vendor Advisory, Mitigation
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 3
- Cpes+1 CPE criteria (now 1)NVD modified 2026-10-26 20:13
- StatusAwaiting Analysis → AnalyzedNVD modified 2026-10-26 20:13
- First seenCVSS 7.1NVD modified 2026-10-14 20:10
Affected (CPE criteria) 1
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
References 2
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pg3f-chj4-mrw6 Exploit, Vendor Advisory, Mitigation
- https://www.vulncheck.com/advisories/freerdp-3.29.0-before-3.32.0-double-free-via-async-update-polygon-order Third Party Advisory