HIGH 8.7 NVD
CVE-2026-121964
FreeRDP before 3.32.2 contains a heap-based buffer overflow in the RD Gateway RPC client, where rpc_client_recv_fragment writes BIND_ACK and ALTER_CONTEXT_RESP
FreeRDP before 3.32.2 contains a heap-based buffer overflow in the RD Gateway RPC client, where rpc_client_recv_fragment writes BIND_ACK and ALTER_CONTEXT_RESP fragments into a persistent PDU stream after checking only total capacity rather than remaining capacity from the current stream position. A malicious or compromised RD Gateway can send crafted RPC fragments with manipulated alloc_hint and frag_length values to overwrite client heap memory with attacker-controlled data, causing a crash or potentially arbitrary code execution.
Affected Products
- freerdp/freerdp
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-q82v-5wjg-6h57
- https://www.vulncheck.com/advisories/freerdp-before-3.32.2-heap-buffer-overflow-via-rpc-cl
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-q82v-5wjg-6h57
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-11-04 via NVD. Affected: freerdp/freerdp.
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