CVE Catalog

CVE-2026-19398

MediumCVSS 6.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.11%

1th percentile - higher than 1% of all known CVEs

Summary

The SmiFlash SMM module in ASUS FA507NU and FA507NV BIOS has an out-of-bounds write vulnerability that allows a local administrator to cause a system crash (BSOD) or BIOS corruption via a crafted software SMI request with an oversized length. Refer to the ASUS Security Advisory for details.

Risk Assessment

The risk includes local privilege escalation to SMM level, which could lead to full system compromise, including permanent BIOS corruption and hardware control.

Recommendation

Apply the BIOS update as recommended in the ASUS Security Advisory. Restrict local access to trusted administrators only.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS