CVE-2026-112073: Tencent ncnn MatMul matmul.cpp matmul_transb out-of-bounds

Vulnerability summary

CVE-2026-112073 is a high (CVSS 7.5) vulnerability in tencent ncnn. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 15.1% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 19-10-2026
   PublishedVulnerability first disclosed.
2. 22-10-2026
   Last modifiedVulnerability information updated.

Description

A vulnerability was identified in Tencent ncnn up to 44b02dabdcf97499281a4692ebd65bad73dcf8b6. Affected by this vulnerability is the function matmul_transb of the file src/layer/matmul.cpp of the component MatMul. The manipulation leads to out-of-bounds read. The attack can be initiated remotely. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.
• CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.