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CVE-2026-112074— Tencent ncnn Conversion API mat_pixel.cpp yuv420sp2rgb integer overflow

Quick assessment

Affected
Tencent ncnn
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在腾讯 ncnn 项目（截至提交 44b02dabdcf97499281a4692ebd65bad73dcf8b6）中发现了一个安全漏洞。该漏洞影响位于 src/mat_pixel.cpp 文件中的 ncnn::yuv420sp2rgb 函数，该函数属于转换（Conversion）API 组件。攻击者可通过恶意操纵触发整数溢出。此攻击可远程发起，且利用代码已公开，可能被用于实际攻击。项目方已通过问题报告提前获知该漏洞，但截至目前尚未作出回应。

CVSS 6.3 · Medium EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Tencent ncnn 44b02dabdcf97499281a4692ebd65bad73dcf8b6 affected
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I. Basic Information for CVE-2026-112074

Vulnerability Information
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Vulnerability Title
Tencent ncnn Conversion API mat_pixel.cpp yuv420sp2rgb integer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in Tencent ncnn up to 44b02dabdcf97499281a4692ebd65bad73dcf8b6. Affected by this issue is the function ncnn::yuv420sp2rgb of the file src/mat_pixel.cpp of the component Conversion API. The manipulation results in integer overflow. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Tencent ncnn 44b02dabdcf97499281a4692ebd65bad73dcf8b6 cpe:2.3:a:tencent:ncnn:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-112074

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III. Intelligence Information for CVE-2026-112074

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IV. Related Vulnerabilities

Same product: ncnn
Same vendor: Tencent
Same weakness: CWE-190

V. Comments for CVE-2026-112074

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