CVE-2026-80113
CVE-2026-80113 is a high-severity vulnerability with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-782.
Key facts
- Severity: High (CVSS 3.x base score 7.1)
- CVSS v4: 6.9
- EPSS exploit prediction: 0% (5th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-782
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2026-80113?
- CVE-2026-80113 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
- Is CVE-2026-80113 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-80113?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2026-80113 published?
- CVE-2026-80113 was published on 2026-09-04 and last updated on 2026-09-10.
References
- https://dkom.dev/posts/directio64-disclosure/
- https://github.com/floppywiggler/directio64-disclosure
- https://www.osforensics.com/whats-new.html
- https://www.passmark.com/products/burnintest/history.php
- https://www.passmark.com/products/performancetest/history.php
- https://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-arbitrary-bit-clear-via-directio64-sys-ioctl
Other CWE-782 vulnerabilities
- CVE-2024-39251 — Critical (CVSS 10.0): An issue in the component ControlCenter.sys/ControlCenter64.sys of ThundeRobot Control Center v2.0.0.10 allows…
- CVE-2024-4196 — Critical (CVSS 10.0): An improper input validation vulnerability was discovered in Avaya IP Office that could allow remote command or code…
- CVE-2024-32370 — Critical (CVSS 9.8): An issue in HSC Cybersecurity HC Mailinspector 5.2.17-3 through 5.2.18 allows a remote attacker to obtain sensitive…
- CVE-2024-30804 — Critical (CVSS 9.8): An issue discovered in the DeviceIoControl component in ASUS Fan_Xpert before v.10013 allows an attacker to execute…
- CVE-2026-84408 — High (CVSS 8.8): QND contains an improper access control vulnerability in a named pipe, which may allow a local attacker who is logged…
- CVE-2024-33220 — High (CVSS 8.8): An issue in the component AslO3_64.sys of ASUSTeK Computer Inc AISuite3 v3.03.36 3.03.36 allows attackers to escalate…