Vulnerability Details CVE-2026-109257
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 32.7%
CVSS Severity
CVSS v3 Score 5.9
References