Read the docs
TI-2026-81013 Aliases CVE-2026-88781GHSA-r2vp-5h4m-7j3c

Untrusted pointer dereference in ASUS motherboard firmware

Priority LOW 29CWE-822Published · 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

ASUS motherboard firmware for multiple series, including A520/B550 and X570, is affected. The firmware dereferences an untrusted pointer supplied through an I/O command, a flaw classified as CWE-822. A local user with kernel-level privileges can supply an arbitrary memory address, which can alter system information or crash the system.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00112 1st 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
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—No fix listedCNA
  • motherboards firmware VendorASUS Affected A520/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 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for ASUS motherboards firmware.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Timeline

  1. 2026-10-27 Threatist record created from CVE-2026-88781
  2. 2026-10-27 Alias added: GHSA-r2vp-5h4m-7j3c
  3. 2026-10-27 Priority changed: MEDIUM → LOW
  4. 2026-11-03 CISA SSVC decision points changed

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