Quick answers
- Is CVE-2026-75809 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-75809 being exploited in the wild.
- How severe is CVE-2026-75809?
- Informational severity, published 8 September 2026.
- Which products and versions are affected?
- ASUS Armoury Crate.
- Is there a fix for CVE-2026-75809?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-75809 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-75809?
- Check whether you run ASUS Armoury Crate. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability stems from exposed IOCTL (I/O Control) handlers in the Armoury Crate driver that lack proper access control checks. An attacker with local system access can invoke these IOCTLs to read from and write to PCIe configuration space, bypassing the driver's intended authentication mechanism. No special privileges or user interaction are required beyond local code execution capability. A successful exploit enables information disclosure (reading hardware configuration and sensitive system data) and denial-of-service through device functionality disruption. ASUS has released a security update to address this issue.
Affected products
- ASUS Armoury Crate
Timeline
- 2026-09-08: disclosed