gcdRadar
archive/Patch now/AIR-2026-1608
closedclosed 28 Oct 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-118375: llama.cpp out-of-bounds write in RDMA transport

llama.cpp

An out-of-bounds write vulnerability exists in the ggml-rpc RDMA transport rdma_recv function of llama.cpp versions b8841 before b11865. Unauthenticated peers can send crafted HELLO messages to overflow the stack, causing a server crash or potential code execution.

why this severityCritical vulnerability rated CVSS 9.2 with a patch available.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
9.2
EPSS
<0.01 · top 69% · 2026-11-13
EPSS scores by FIRST
fix status
Patched
affected
llama.cpp b8841 to b11864
fixed in
llama.cpp b11865
first report
28 Oct 2026
last update
28 Oct 2026
CVE ids
CVE-2026-118375other records

What to do

Update llama.cpp to version b11865 or later.

Timeline · 1

  1. 28 Oct 2026CVE-2026-118375: llama.cpp b8841 before b11865 contains an out-of-bounds write vulnerability in the ggml-rpc RDMA transport rdma_recv() function…

Sources · 1

Advisories and databases

  1. 2026-10-28
    CVE-2026-118375: llama.cpp b8841 before b11865 contains an out-of-bounds write vulnerability in the ggml-rpc RDMA transport rdma_recv() function…
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-118375

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerability
severity
2 · Disclosed vulnerability
fix status
Patched
targets
Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
out-of-bounds-writerdma
dates
happened 28 Oct 2026 · first reported 28 Oct 2026
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.98 · created 2026-10-28 07:05Z · updated 2026-10-28 07:05Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# CVE-2026-118375: llama.cpp out-of-bounds write in RDMA transport

https://gcdradar.vercel.app/incidents/cve-2026-118375-llama-cpp-out-of-bounds-write-in-rdma-transp · AIR-2026-1608 · closed 2026-10-28

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability): Critical vulnerability rated CVSS 9.2 with a patch available.
- Fix status: Patched
- First reported: 2026-10-28
- AI role: Attack on AI
- Products: llama.cpp
- CVE ids: CVE-2026-118375
- CVSS: 9.2

## Summary

An out-of-bounds write vulnerability exists in the ggml-rpc RDMA transport rdma_recv function of llama.cpp versions b8841 before b11865. Unauthenticated peers can send crafted HELLO messages to overflow the stack, causing a server crash or potential code execution.

## What to do

Update llama.cpp to version b11865 or later.

## Affected and fixed versions

- Affected: llama.cpp b8841 to b11864
- Fixed in: llama.cpp b11865

## Latest updates

- 2026-10-28: CVE-2026-118375: llama.cpp b8841 before b11865 contains an out-of-bounds write vulnerability in the ggml-rpc RDMA transport rdma_recv() function… (https://nvd.nist.gov/vuln/detail/CVE-2026-118375)

## Sources

- 2026-10-28 NVD: CVE-2026-118375: llama.cpp b8841 before b11865 contains an out-of-bounds write vulnerability in the ggml-rpc RDMA transport rdma_recv() function… https://nvd.nist.gov/vuln/detail/CVE-2026-118375

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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