ASUS Armoury Crate 3.sys Security Update AsIO3.sys memory corruption

Summaryinfo

A vulnerability was found in ASUS Armoury Crate 3.sys. It has been declared as critical. This affects an unknown part in the library AsIO3.sys of the component Security Update. The manipulation results in memory corruption. This vulnerability is cataloged as CVE-2025-9338. The attack must be initiated from a local position. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in ASUS Armoury Crate 3.sys. Affected is some unknown processing in the library AsIO3.sys of the component Security Update. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A improper restriction of operations within the bounds of a memory buffer exists in AsIO3.sys driver. This vulnerability can be triggered by manually executing a specially crafted process, potentially leading to local privilage escalation. For additional information, please refer to the 'Security Update for Armoury Crate App' section of the ASUS Security Advisory.

The advisory is shared for download at asus.com. This vulnerability is traded as CVE-2025-9338 since 08/22/2025. The exploitability is told to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/06/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-37977). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Rust Package

Vendor

• ASUS

Name

• Armoury Crate

Version

• 3.sys

License

• commercial

Website

• Vendor: https://www.asus.com/

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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