CVE-2026-80118 PassMark PerformanceTest, BurnInTest, and OSForensics Kernel Null Pointer Dereference via DirectIo64.sys IOCTL
Unprivileged local users can read physical memory, bypass KASLR, write files as SYSTEM, and crash the kernel via a vulnerable driver IOCTL.
- 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-2026-80118?
CVE-2026-80118 is a high-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 an unauthenticated physical memory disclosure in DirectIo64.sys, reachable by unprivileged local users through a single IOCTL with no caller-identity check. The handler writes a crash-dump-format (PAGEDU64) image of all physical memory to a caller-supplied file path in the SYSTEM context, allowing a standard user to create files in locations they cannot otherwise write and to recover memory belonging to processes of other users. The image is preceded by a header that exposes the kernel loaded-module list, active-process list and PFN database pointers, defeating KASLR. The same handler also dereferences the return value of an internal kernel-structure locator without a NULL check; that locator returns NULL on three distinct failure paths, and a kernel crash results on builds where any of those paths is taken.
Which versions are affected by CVE-2026-80118?
How do I fix CVE-2026-80118?
No fix has been published for CVE-2026-80118 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-80118 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-80118 exists.
Sources
Also known as GHSA-jmfx-96g9-5g4f.