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Asus BIOS Update Fixes High-Severity Vulnerability for Older Intel Motherboards
Asus has issued a critical security patch for several 8th and 9th Gen Intel motherboards. If you own an older ROG Strix or Maximus model, here is why you should update your BIOS immediately.
If the mere thought of a BIOS update makes you nervous, you are not alone. However, Asus has just released a critical patch that makes this mandatory for owners of older Intel-based motherboards. A new security vulnerability, designated as CVE-2026-93495, has been identified, and it carries a high severity score of 7.0, making it essential to apply the latest firmware fixes as soon as possible.
Understanding the Security Risk
The vulnerability revolves around an improper initialization flaw within specific Asus motherboards compatible with 8th and 9th Gen Intel processors. In plain English, this security gap allows a malicious actor with physical access to your PC to read or write arbitrary memory by plugging in a specially crafted device.
While this requires an attacker to be physically present in the room with your machine, the potential for unauthorized data access is significant. Because this vulnerability targets the low-level hardware communication, software-based antivirus solutions cannot protect you; you must patch the system at the firmware level.
Which Motherboards Are Affected?
Asus has confirmed that a variety of high-end boards, including several ROG Maximus and ROG Strix models, are impacted. The company strongly recommends that all users verify their current version and update to the specified fixed BIOS version immediately.
- PRIME Z390-A: Update to 2203
- ROG MAXIMUS XI HERO (and WI-FI): Update to 2203
- ROG MAXIMUS XI FORMULA / CODE / EXTREME / APEX / GENE: Update to 2203
- ROG STRIX Z390-E / Z390-F GAMING: Update to 2203
- Pro WS C246-ACE: Update to 2203
- WS Z390 PRO: Update to 1502
How to Protect Your PC
Updating your BIOS might feel daunting, but Asus has streamlined the process. You can download the necessary firmware updates directly from the official Asus support website. If you are unfamiliar with the process, Asus provides a comprehensive guide on their support portal specifically for updating BIOS within the Windows environment.
Pro Tip: Beyond updating your motherboard firmware, ensure your system management software—such as Asus Armoury Crate—is also up to date. Recent reports indicate that additional high-severity vulnerabilities have been discovered in these tools, making a full system sweep a smart move for security-conscious gamers.
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