CVE-2026-91964 — Vulnerability intelligence
freerdp — freerdp
Published:
- CVSS
- 8.7
- CISA KEV
- Not listed; not proof of no exploitation
Original source text (not a translation)
FreeRDP 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.