What is GHSA-mqcp-4543-826g?

GHSA-mqcp-4543-826g is a security advisory published by GitHub Security Advisories with Medium severity. “unsupported-when-assigned.” An out-of-bounds write in the SmiFlash SMM module of ASUS FA507NU...

Which CVE IDs does GHSA-mqcp-4543-826g cover?

GHSA-mqcp-4543-826g covers the following CVE IDs: CVE-2026-19398. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

GHSA-mqcp-4543-826gMedium

“unsupported-when-assigned.” An out-of-bounds write in the SmiFlash SMM module of ASUS FA507NU...

Vendor

GitHub Security Advisories

Published

August 27, 2026

Last Modified

August 27, 2026

🔗 CVE IDs covered (1)

CVE-2026-19398 →

📋 Description

“unsupported-when-assigned.” An out-of-bounds write in the SmiFlash SMM module of ASUS FA507NU and FA507NV BIOS allows a local administrator to cause a system crash (BSOD) or BIOS corruption via a crafted software SMI (SW SMI) request with an oversized length value.Refer to the ' Security Update for ASUS FA507NV / FA507NU BIOS ' section on the ASUS Security Advisory for more information.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-19398
https://www.asus.com/security-advisory
https://github.com/advisories/GHSA-mqcp-4543-826g