CVE-2026-112073
Tencent ncnn MatMul matmul.cpp matmul_transb out-of-bounds
- State
- Published
- Severity
- 5.3 Medium
- Published
- Oct 19, 2026
- Updated
- Oct 22, 2026
- Reserved
- Oct 18, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C | VulDB |
| 3.0 | 6.3 Medium | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C | VulDB |
| 2.0 | 7.5 High | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
ncnnTencent |
|
References
- VDB-421752 | Tencent ncnn MatMul matmul.cpp matmul_transb out-of-boundsvdb-entrytechnical-description
- VDB-421752 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-112073 | CVE Analysis and Reportthird-party-advisory
- Submit #1009476 | Tencent ncnn master 3b7bdba Out-of-Bounds Readthird-party-advisory
- https://github.com/Tencent/ncnn/issues/7034exploitissue-tracking
- https://github.com/Tencent/ncnn/product
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