Buffer overflow in Passmark Software Burnintest
CVE-2026-80113
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (5.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.001
Affected products
Weakness classification (CWE)
References
- Technical Analysis and Decompiled Evidence (technical-description)
- Researcher Disclosure (technical-description, exploit)
- OSForensics Changelog (release-notes, patch)
- BurnInTest Changelog (release-notes, patch)
- PerformanceTest Changelog (release-notes, patch)
- www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensic… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-80113?
- CVE-2026-80113 is a high-severity vulnerability in Passmark Software Burnintest, classified under CWE-782. CVSS score: 7.1/10. Published 2026-09-04.
- How severe is CVE-2026-80113?
- High severity. CVSS v3 base score is 7.1 out of 10.