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TI-2026-15824 Aliases CVE-2026-19398GHSA-mqcp-4543-826g

Out-of-bounds write in ASUS FA507NV

Priority LOW 29CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0016 5th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ASUSFA507NV318—No fix listedCNA
ASUSFA507NU318—No fix listedCNA
  • FA507NV VendorASUS Affected 318 Fixed in — No fix listed CNA
  • FA507NU VendorASUS Affected 318 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-19398
  2. 2026-10-03 Alias added: GHSA-mqcp-4543-826g

References

Other 1

  • TI-2021-12008 The administrator application on ASUS GT-AC2900 devices before 3.0.0.4.386.42643 and Lyra… KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-36933 "UNSUPPORTED WHEN ASSIGNED" Certain versions of the ASUS Live Update client were… KEVCVSS 4.0CRITICAL 9.3
  • TI-2023-20780 OS command injection in ASUS RT-AX55 KEVCVSS 3.1HIGH 8.8
  • TI-2018-04367 An issue was discovered in AsusWRT before 3.0.0.4.384_10007. CVSS 3.0CRITICAL 9.8
  • TI-2018-04368 An issue was discovered in AsusWRT before 3.0.0.4.384_10007. CVSS 3.0CRITICAL 9.8
  • TI-2014-07780 common.c in infosvr in ASUS WRT firmware 3.0.0.4.376_1071, 3.0.0.376.2524-g0013f52, and… CVSS 2.0HIGH 10.0
See all 365 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences