Medium severity · published Aug 27, 2026
CVE-2026-19398
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…
6.8
CVSS
0.2%
EPSS
No
On KEV
Description
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FA
FA507NU · ASUS
318 · source: vendor
FA
FA507NV · ASUS
318 · source: vendor