Integer Overflow Vulnerability in Tencent ncnn Conversion API
CVE-2026-112074

5.3MEDIUM

Key Information:

Vendor

Tencent

Status
Ncnn
Vendor
CVE Published:
19 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-112074?

A security flaw has been detected in the Tencent ncnn Conversion API within the function ncnn::yuv420sp2rgb, specifically located in the file src/mat_pixel.cpp. This vulnerability is characterized by an integer overflow issue, which can allow remote attackers to exploit the system. The potential for exploitation is heightened as the flaw was made public, and although the Tencent project was notified of this issue, there has been no official response or patch as of now.

Affected Version(s)

ncnn 44b02dabdcf97499281a4692ebd65bad73dcf8b6

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-112074 - Proof of Concept

References

https://vuldb.com/vuln/421753
vdb-entrytechnical-description
https://vuldb.com/vuln/421753/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-112074
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

JerryGW (VulDB User)
VulDB CNA Team
.