23 Oct 2026 15:48:27 UTC
FreeRDP 2.0.0 through 3.30.0 Heap Buffer Overflow via RoutingToken
cve-program · CVE-2026-91964 · Published
CVE-2026-91964
FreeRDP 2.0.0 through 3.30.0 Heap Buffer Overflow via RoutingToken
CVSS 4.0 8.7 HIGHCVSS 3.1 8.8 HIGHCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-91964
PublishedFreeRDP versions before 3.31.0 contain a heap-based buffer overflow in nego_send_negotiation_request when processing Server Redirection PDU messages with attacker-controlled LoadBalanceInfo fields. A malicious RDP server can trigger the overflow by sending an arbitrary-length field that gets written to a fixed 512-byte buffer without validation, causing client crashes or potential code execution when chained with memory disclosure.
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