CVE-2026-80113 PassMark PerformanceTest, BurnInTest, and OSForensics Arbitrary Bit Clear via DirectIo64.sys IOCTL
Local attackers can escalate privileges by exploiting a missing validation flaw in the DirectIo64.sys driver to clear arbitrary physical memory bits.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-80113?
CVE-2026-80113 is a medium-severity vulnerability in PassMark Software BurnInTest, published on 4 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
PassMark PerformanceTest before 11.1 build 1012, BurnInTest before 11.1 build 1000, and OSForensics before 11.1 build 1016 contain a privilege escalation vulnerability in DirectIo64.sys that allows local users to clear arbitrary bits at any physical memory address due to missing validation of the physical address parameter in an exposed IOCTL handler. Attackers can obtain a device handle and supply an arbitrary 64-bit physical address with a bit index to invoke MmMapIoSpace and clear bits in kernel code pages or page table entries, enabling local privilege escalation or system compromise.
Which versions are affected by CVE-2026-80113?
How do I fix CVE-2026-80113?
No fix has been published for CVE-2026-80113 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-80113 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-80113 exists.
Sources
Also known as GHSA-xw54-98c9-3f6v.