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CVE-2026-88781

MEDIUMCVSS 6.8/10EPSS 0.11%

Last modified

CVE-2026-88781 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. Untrusted Pointer Dereference in ASUS certain motherboards firmware allows a kernel-level privileges user can supply an arbitrary memory address via an I/O command, leading to subsequent system information being tampered with or causing a system crash. Refer to the 'Security Update for Multiple ASUS Motherboards' section on the ASUS Security Advisory for more information.. EPSS estimates a 0.11% chance of exploitation in the next 30 days.

Description

Untrusted Pointer Dereference in ASUS certain motherboards firmware allows a kernel-level privileges user can supply an arbitrary memory address via an I/O command, leading to subsequent system information being tampered with or causing a system crash. Refer to the 'Security Update for Multiple ASUS Motherboards' section on the ASUS Security Advisory for more information.

Metrics

CVSS 4.0
6.8/10

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability
0.11%

1.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
ASUSmotherboards firmwareA520/B550 series Before 3644 4304; X570 Series Before 5054; A620/A620A Series Before 4003 4004; B650 Series Before 1303 4003 4004; X670 Series Before 4003 4004; B840 Series Before 1804; B850 Series Before 1103 1804 2503; X870 Series Before 1804 2503; X870E Series Before 1103 2503; Knoll Series Before 4003; TRX50 Series Before 0703 1403; W790 Series Before 2101; WRX90 Series Before 1403

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-88781?
Untrusted Pointer Dereference in ASUS certain motherboards firmware allows a kernel-level privileges user can supply an arbitrary memory address via an I/O command, leading to subsequent system information being tampered with or causing a system crash. Refer to the 'Security Update for Multiple ASUS Motherboards' section on the ASUS Security Advisory for more information.
How severe is CVE-2026-88781?
CVE-2026-88781 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.11% probability of exploitation in the next 30 days.
How do I fix CVE-2026-88781?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST