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CVE-2025-3464 is a local authorization bypass and privilege escalation vulnerability in the AsIO3.sys kernel driver used by ASUS Armoury Crate. The flaw affects Armoury Crate versions 5.9.9.0 through 6.1.18.0. The vulnerable logic is in the driver’s access-control path for privileged device functionality, where the caller is validated by hashing the executable image path and comparing it against a hardcoded SHA-256 value associated with an ASUS service. Due to a time-of-check time-of-use race condition, an attacker can use a specially crafted hard link to cause the authorization decision to be made on a path that is subsequently redirected, bypassing the intended restriction and obtaining access to driver functionality that should be limited to trusted ASUS components. Once access to the driver is obtained, the attacker can invoke privileged IOCTL functionality exposed by the driver, enabling escalation to SYSTEM.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a fully operational local privilege escalation exploit targeting the ASUS AsIO3.sys driver (CVE-2025-3464). The exploit is implemented in a single C source file (AsIO3_FullExploit.c), with supporting documentation in README.md and a standard MIT license. The exploit chains a Time-of-Check-Time-of-Use (TOCTOU) authentication bypass (via NTFS hardlinks and path substring checks) with a decrement primitive exposed by a vulnerable IOCTL in the driver. By manipulating the PreviousMode field in the KTHREAD structure, the exploit gains arbitrary kernel memory read/write, locates the SYSTEM process, and steals its token to spawn a shell as NT AUTHORITY\SYSTEM. The exploit is designed for local execution on Windows systems with the vulnerable driver loaded and does not require administrative privileges. Several fingerprintable file paths are used for the hardlink attack and process manipulation. The code is mature and operational, providing a working SYSTEM shell if successful.
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19 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An authorization bypass vulnerability in the AsIO3.sys functionality of Asus Armoury Crate 5.9.13.0 that can be triggered using a specially crafted hard link.
An authorization bypass in the ASUS Armoury Crate AsIO3.sys driver that lets unauthorized users access privileged driver functionality intended only for AsusCertService.exe, enabling local privilege escalation to NT SYSTEM when combined with exposed driver primitives.
A high-severity local privilege escalation vulnerability in ASUS Armoury Crate's AsIO3.sys driver that can allow an authenticated attacker to bypass authorization and obtain SYSTEM-level privileges.
A critical vulnerability in ASUS Armoury Crate listed as a trending CVE for the week. Specifics not detailed in the content.
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Cross-references every affected SKU, including bundled OEM variants.
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