llama.cpp b2877 before b11935 ggml-rpc Server DoS via Oversized recv_msg Length

llama.cpp · CWE-248 · CWE-248

Affectedllama.cpp

FixA patch is linked in the references.

PublishedOct 29, 13:08 · VulnCheck

ScoredOct 29 · 7.5 · VulnCheck

Exploit code publicNone known · checked 21:18 UTC

ExploitedNone known · CISA KEV checked 22:08 UTC

What we know

No known exploitation. CISA KEV, checked 22:08 UTC.

No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.

An attacker only needs network access to the target. No login needed. CVSS: network, no privileges.

A successful attack can take the service down. CVSS impact.

Description

llama.cpp b2877 before b11935 contains an uncaught exception vulnerability in the ggml-rpc server that allows unauthenticated remote attackers to crash the rpc-server by sending oversized message lengths. After the HELLO handshake, attackers can send a command such as SET_TENSOR with a length above std::vector::max_size(), triggering an uncaught std::length_error that aborts the process and denies service to all clients.

From VulnCheck

Affected and fixed versions

ProductAffectedFixed inllama.cppb2877 – before b11935–

Exploit code

Exploit-DBnone knownMetasploitnone knownNucleinone known

References

github.com/ggml-org/llama.cpp/pull/31204 · github.compatchissue tracking Patch Commit · github.compatch github.com/ggml-org/llama.cpp · github.comproduct llama.cpp b11935 Release Notes · github.comrelease notes github.com/ggml-org/llama.cpp/blob/8542e94350f0ade01644db6f1d1520da3814dafd/ggml/src/ggml-rpc/ggml-rpc.cpp#L344-L356 · github.comtechnical description VulnCheck Advisory: llama.cpp b2877 before b11935 ggml-rpc Server DoS via Oversized recv_msg Length · vulncheck.comthird party advisory

Other CVEs in llama.cpp

All 34 →

8.1llama.cpp b8841 before b11865 Stack-based Buffer Overflow via ggml-rpc RDMA rdma_recv() · CVE-2026-118375Oct 28 6.1llama.cpp b5854 before b11275 Integer Overflow in gguf_init_from_reader · CVE-2026-116840Oct 27 6.6llama.cpp b10398 before b11301 Integer Overflow in gguf_init_from_reader · CVE-2026-116829Oct 27