“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.

Attack Vector Local

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
ASUS FA507NV unaffected
Version Status Constraints
318 affected —
ASUS FA507NU unaffected
Version Status Constraints
318 affected —

No data.

No data.

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Project Subscriptions

Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.asus.com/security-advisory cve-icon cve-icon
History

Thu, 27 Aug 2026 04:15:00 +0000

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

Thu, 27 Aug 2026 02:15:00 +0000

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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: ASUS

Published:

Updated: 2026-08-27T02:00:16.449Z

Reserved: 2026-08-10T07:25:57.688Z

Link: CVE-2026-19398

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-27T02:16:27.460

Modified: 2026-08-27T02:16:27.460

Link: CVE-2026-19398

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-27T04:00:13Z

Weaknesses