What is GHSA-639g-9ffj-23fc?

GHSA-639g-9ffj-23fc is a security advisory published by GitHub Security Advisories with Medium severity. In med, there is a possible out of bounds write due to an incorrect bounds check. This could lead...

Which CVE IDs does GHSA-639g-9ffj-23fc cover?

GHSA-639g-9ffj-23fc covers the following CVE IDs: CVE-2026-20491. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-639g-9ffj-23fc?

GHSA-639g-9ffj-23fc has a CVSS v3 base score of 5.5, published by GitHub Security Advisories.

GHSA-639g-9ffj-23fcMediumCVSS 5.5

In med, there is a possible out of bounds write due to an incorrect bounds check. This could lead...

Vendor

GitHub Security Advisories

Published

August 3, 2026

Last Modified

August 3, 2026

🔗 CVE IDs covered (1)

CVE-2026-20491 →

📋 Description

In med, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS10981478 (Note: For MT6890, MT6990, MT6988) / AUTO00851173 (Note: For MT2735, MT2737); Issue ID: MSV-7652.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-20491
https://www.mediatek.com/product-security-bulletin/August-2026
https://github.com/advisories/GHSA-639g-9ffj-23fc