MEDIUM 5.3 NVD
CVE-2026-121396
FreeRDP clients from 3.0.0 before 3.32.2 built with verbose WinPR assertions contain a reachable assertion in rts_read_auth_verifier triggered by malformed RTS
FreeRDP clients from 3.0.0 before 3.32.2 built with verbose WinPR assertions contain a reachable assertion in rts_read_auth_verifier triggered by malformed RTS padding. Attackers controlling an RD Gateway can send a crafted RPC-over-HTTP RTS PDU with inconsistent authentication padding to abort the connecting client process.
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-6p3w-fv52-cf24
- https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.2-denial-of-service-via-rts
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-11-03 via NVD.
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