FreeRDP from 3.0.0 before 3.32.0 contains a heap out-of-bounds read vulnerability that allows a malicious RD Gateway to crash clients by sending mismatched message lengths. Attackers controlling the gateway can set MsgBytes far larger than the NDR string ActualCount in consent or service messages, causing UTF-8 conversion to read past the stream allocation and disrupt client availability.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-xf45-j844-588v Exploit, Vendor Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-xf45-j844-588v 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 2026-10-21 14:21
- StatusAwaiting Analysis → AnalyzedNVD modified 2026-10-21 14:21
- First seenCVSS 5.3NVD modified 2026-10-14 20:10
Affected (CPE criteria) 1
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
References 3
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-xf45-j844-588v Exploit, Vendor Advisory
- https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-heap-out-of-bounds-read-via-rd-gateway-messages Third Party Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-xf45-j844-588v Exploit, Vendor Advisory