Untrusted Pointer Dereference Vulnerability in ASUS Motherboard Firmware
CVE-2026-88781

6.8MEDIUM

Key Information:

Vendor

Asus
Status
Motherboards Firmware
Vendor
CVE Published:
27 October 2026

What is CVE-2026-88781?

A vulnerability in certain ASUS motherboard firmware allows users with kernel-level privileges to submit arbitrary memory addresses through I/O commands. This can result in tampering with sensitive system information or cause the system to crash. For more details, refer to the ASUS Security Advisory.

Affected Version(s)

motherboards firmware A520/B550 series Before 3644 4304

motherboards firmware X570 Series Before 5054

motherboards firmware A620/A620A Series Before 4003 4004

References

https://www.asus.com/security-advisory

CVSS V4

Score:
6.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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