Buffer overflow in Tencent Ncnn
CVE-2026-112073
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Tencent Ncnn — versions 44b02dabdcf97499281a4692ebd65bad73dcf8b6
Weakness classification (CWE)
References
- vuldb.com/vuln/421752 (technical-description, vdb-entry)
- vuldb.com/vuln/421752/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-112073 (third-party-advisory)
- vuldb.com/submit/1009476 (third-party-advisory)
- github.com/Tencent/ncnn/issues/7034 (issue-tracking, exploit)
- github.com/Tencent/ncnn/ (product)
Frequently asked questions
- What is CVE-2026-112073?
- CVE-2026-112073 is a medium-severity vulnerability in Tencent Ncnn, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.3/10. Published 2026-10-19.
- How severe is CVE-2026-112073?
- Medium severity. CVSS v3 base score is 6.3 out of 10.