CVE-2026-80119: PassMark PerformanceTest, BurnInTest, and OSForensics Physical Memory Disclosure via DirectIo64.sys IOCTL

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-04 · updated 2026-09-08
Weakness: CWE-73

Description

PassMark PerformanceTest before 11.1 build 1012, BurnInTest before 11.1 build 1000, and OSForensics before 11.1 build 1016 contain an information disclosure vulnerability in DirectIo64.sys that allows unauthenticated local attackers to dump complete physical memory contents by supplying a caller-controlled file path to an exposed IOCTL. Attackers can issue a single IOCTL call to trigger the driver to iterate all physical memory ranges via MmGetPhysicalMemoryRanges and map each page through ZwMapViewOfSection on the PhysicalMemory section object, writing a full RAM image to an attacker-specified path in the SYSTEM context, bypassing user-mode ACLs and exposing LSASS working set, process memory, and cryptographic material from all running processes.

Affected products

PassMark Software BurnInTest: before 11.1 build 1000 — fixed in 11.1 build 1000
PassMark Software OSForensics: before 11.1 build 1016 — fixed in 11.1 build 1016
PassMark Software PerformanceTest: before 11.1 build 1012 — fixed in 11.1 build 1012

How to fix

Upgrade to a fixed version: PassMark Software BurnInTest 11.1 build 1000; PassMark Software OSForensics 11.1 build 1016; PassMark Software PerformanceTest 11.1 build 1012. Check the vendor advisory for mitigations.

References

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