CVE-2026-118375

High

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.

SeverityHigh

CVSS8.1

Exploit probability—

ProductGgml-org Llama.cpp

PublishedOct 28, 2026

First seenOct 28, 2026

Weakness typeCWE-787Out-of-bounds write

How to fix

Update

ggml-org llama.cppb11865 or later

Patches

Vendor advisories

github.com/ggml-org/llama.cpp/releases/tag/b11865

Affected products

Product	Affected versions	Fixed in
ggml-org llama.cpp	b8841 ≤ v < b11865	b11865

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