CVE-2026-112074 Tencent CVE debrief

Who should care

Defenders responsible for Tencent ncnn deployments should assess exposure and prioritize verification of the affected version. This includes operators, platform administrators, vulnerability management teams, and security teams who need to review the Conversion API and ncnn::yuv420sp2rgb function for potential vulnerabilities and consider implementing compensating controls to mitigate potential attacks.

Why it matters

Defenders should prioritize verifying the affected version of Tencent ncnn and assessing exposure, as the vulnerability can be exploited remotely. The project was informed of the problem early through an issue report but has not responded yet, which may impact remediation efforts.

• Verify the affected version of Tencent ncnn to determine exposure
• Assess the potential for remote exploitation
• Consider implementing compensating controls to mitigate potential attacks
• Review the Conversion API and ncnn::yuv420sp2rgb function for potential vulnerabilities

Technical summary

The vulnerability is an integer overflow in the function ncnn::yuv420sp2rgb of the file src/mat_pixel.cpp of the component Conversion API in Tencent ncnn up to 44b02dabdcf97499281a4692ebd65bad73dcf8b6. The attack can be launched remotely. This issue can be verified through defensive testing and review of the Conversion API and ncnn::yuv420sp2rgb function for potential vulnerabilities. The project was informed of the problem early through an issue report but has not responded yet, which may impact remediation efforts.

Defensive priority

Defenders should prioritize verifying the affected version of Tencent ncnn and assessing exposure, as the vulnerability can be exploited remotely.

Recommended defensive actions

• Verify the version of Tencent ncnn being used and assess exposure
• Review the Conversion API and ncnn::yuv420sp2rgb function for potential vulnerabilities
• Consider implementing compensating controls to mitigate potential attacks
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. The affected version of Tencent ncnn is up to 44b02dabdcf97499281a4692ebd65bad73dcf8b6. The vulnerability can be exploited remotely, but there is no information on known attacks or victims.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.