FreeRDP before 3.32.0 contains a double-free vulnerability in nsc_context_initialize_encode() that leaves dangling plane pointers after a partial buffer growth failure. Attackers using a crafted RDP client can negotiate NSCodec with a large desktop geometry to trigger allocation failure, crashing the server during context teardown.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-2hhg-8xx6-v73w Exploit, Vendor Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-2hhg-8xx6-v73w Exploit, Vendor Advisory
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 2026-10-27 18:56
- StatusAwaiting Analysis → AnalyzedNVD modified 2026-10-27 18:56
- First seenCVSS 8.2NVD modified 2026-10-14 20:11
Affected (CPE criteria) 1
cpe:2.3:a:freerdp:freerdp:3.31.0:*:*:*:*:*:*:*
References 3
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-2hhg-8xx6-v73w Exploit, Vendor Advisory
- https://www.vulncheck.com/advisories/freerdp-before-3.32.0-double-free-via-nscodec-plane-growth-failure Third Party Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-2hhg-8xx6-v73w Exploit, Vendor Advisory