---
id: "CVE-2026-88781"
kind: "vulnerability"
aliases: ["CVE-2026-88781"]
title: "ASUS motherboard firmware: untrusted pointer lets kernel-level user tamper or crash"
severity: "medium"
cvss: 6.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["asus", "firmware", "infrastructure", "linux", "motherboard", "windows"]
not_affected_if: ["unknown"]
published_at: "2026-10-27T03:16:26+00:00"
first_seen_at: "2026-10-27T03:20:26+00:00"
updated_at: "2026-10-27T03:21:56+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-88781", "first_seen_at": "2026-10-27T03:20:26+00:00"}]
---

# ASUS motherboard firmware: untrusted pointer lets kernel-level user tamper or crash

Certain ASUS motherboard firmware dereferences an arbitrary memory address supplied through an I/O command. A user with kernel-level privileges can use this to tamper with system information or crash the system.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- unknown

## Fix

- Check the 'Security Update for Multiple ASUS Motherboards' section of the ASUS Security Advisory for the affected models and the firmware (BIOS/UEFI) version to install.

## Timeline

- 2026-10-27T03:20:26+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-88781

## From the sources

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.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_