{"id":"CVE-2026-118375","title":"llama.cpp b8841 before b11865 Stack-based Buffer Overflow via ggml-rpc RDMA rdma_recv()","summary":"llama.cpp b8841 before b11865 contains an out-of-bounds write vulnerability in the ggml-rpc RDMA transport rdma_recv() function that allows unauthenticated peers to overflow the rpc-server stack. Attackers advertising RDMA capabilities i…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-787"],"vendor":"ggml-org","product":"llama.cpp","affected":["llama.cpp >= b8841 < b11865"],"published":"2026-10-28","updated":"2026-10-28","sourceUpdated":"2026-10-28T02:03:22.895Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-118375","references":[{"url":"https://github.com/ggml-org/llama.cpp/pull/30399"},{"url":"https://github.com/ggml-org/llama.cpp/commit/9a0fde9967fa1a35b6e5dd1f47e1a3648b6fecc1"},{"url":"https://github.com/ggml-org/llama.cpp/blob/620d2225cc436ab0b001e3200e590e3b286ef9ab/ggml/src/ggml-rpc/transport.cpp#L510-L528"},{"url":"https://github.com/ggml-org/llama.cpp/releases/tag/b11865","label":"llama.cpp b11865 Release Notes"},{"url":"https://github.com/ggml-org/llama.cpp"},{"url":"https://www.vulncheck.com/advisories/llama-cpp-b8841-before-b11865-stack-based-buffer-overflow-via-ggml-rpc-rdma-rdma-recv","label":"VulnCheck Advisory: llama.cpp b8841 before b11865 Stack-based Buffer Overflow via ggml-rpc RDMA rdma_recv()"}],"tags":["cve.org"],"ingestedAt":"2026-10-28T03:02:57.621Z","slug":"CVE-2026-118375","body":"## Overview\n\nllama.cpp b8841 before b11865 contains an out-of-bounds write vulnerability in the ggml-rpc RDMA transport rdma_recv() function that allows unauthenticated peers to overflow the rpc-server stack. Attackers advertising RDMA capabilities in the HELLO message can send up to 256 KiB into a 1-byte stack variable in rpc_serve_client(), crashing the server or potentially executing code.\n\n## Affected\n\n- `llama.cpp >= b8841 < b11865`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}