Vulnerability details
CVE-2026-118375
ggml-org llama.cpp
llama.cpp b8841 before b11865 Stack-based Buffer Overflow via ggml-rpc RDMA rdma_recv()
CVSS 4.0
9.2Critical
Official description
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 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.2Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| 8.1High | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| ggml-org | llama.cpp | b8841 ≤ v < b11865 | CVEProject cvelistV5 (CNA) |
References and advisories
6- https://github.com/ggml-org/llama.cpp/pull/30399 patchissue-tracking
- https://github.com/ggml-org/llama.cpp/commit/9a0fde9967fa1a35b6e5dd1f47e1a3648b6fecc1 patch
- https://github.com/ggml-org/llama.cpp/blob/620d2225cc436ab0b001e3200e590e3b286ef9ab/ggml/src/ggml-rpc/transport.cpp#L510-L528 technical-description
- https://github.com/ggml-org/llama.cpp/releases/tag/b11865 release-notes
- https://github.com/ggml-org/llama.cpp product
- https://www.vulncheck.com/advisories/llama-cpp-b8841-before-b11865-stack-based-buffer-overflow-via-ggml-rpc-rdma-rdma-recv third-party-advisory
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Details
- Published
- 2026-10-28
- Last updated
- 2026-11-03
- State
- Published
- Assigner (CNA)
- VulnCheck
- Kolun priority
- 22 · Low
Exploit prediction (EPSS)
0.36%
Probability of exploitation in 30 days
30.8%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-787Out-of-bounds Write