CVE-2026-19398

Published Aug 27, 2026 CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
References
History
Type Values Removed Values Added
Title Out‑of‑Bounds Write in BIOS SmiFlash SMM Module Allowing Local Administrator to Trigger System Crash or BIOS Corruption on ASUS FA507NU/FA507NV
Type Values Removed Values Added
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. 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.
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Out‑of‑Bounds Write in BIOS SmiFlash SMM Module Allowing Local Administrator to Trigger System Crash or BIOS Corruption on ASUS FA507NU/FA507NV
Type Values Removed Values Added
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.
First Time appeared Asus
Asus fa507nu
Asus fa507nv
Weaknesses CWE-787
CPEs cpe:2.3:a:asus:fa507nu:318:*:*:*:*:*:*:*
cpe:2.3:a:asus:fa507nv:318:*:*:*:*:*:*:*
Vendors & Products Asus
Asus fa507nu
Asus fa507nv
References
Metrics cvssV4_0

{'score': 6.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ASUS
Published
Updated
Sep 9, 2026, 3:29 AM
Reserved
Aug 10, 2026, 7:25 AM
Status
Deferred
Published
Aug 27, 2026, 2:16 AM
Modified
Sep 9, 2026, 4:17 AM