cpuz.sys

CPU-Z hardware information driver

From CPUID

Part of the CPUID family

Status

On a known-vulnerable list

Known variants

47 distinct hashes

Field notes

CPUZ.sys is the kernel driver used by CPU-Z, the popular hardware identification tool from CPUID. CPU-Z is one of the first tools many PC builders and overclockers install. It reads CPU, motherboard, memory, and graphics details that user-mode APIs do not expose.

Older versions are on the public LOLDrivers list because the driver provided more system access through its IOCTL interface than the user-facing tool actually needed. CPUID patched the driver in current CPU-Z releases.

If you have CPU-Z installed, this driver is expected. Update to the current CPU-Z release; the patched driver replaces the older one only on the machines where the update actually runs.

What the record shows

cpuz.sys is listed as a known-vulnerable driver on the public LOLDrivers project. 47 distinct binary hashes matching this filename are on record, meaning multiple versions of the file have been observed.

What this means, plainly

Presence is not proof of misuse. Driver files on the LOLDrivers list commonly ship with legitimate hardware tools, gaming software, or vendor utilities. Their presence is recorded as evidence on a record. It is never treated as a verdict about a person.

Related drivers

Other drivers in the CPUID family. See the whole family →

cpuz_x64.sys cpuz141.sys

Source

Status data comes from the public LOLDrivers project, a community-curated registry of drivers known to be vulnerable or malicious. The snapshot Vera uses was refreshed July 10, 2026. CVE links go to the NIST National Vulnerability Database.

In plain words

Kernel driver BYOVD Ring 0 Code-signing certificate Certificate revocation The full glossary →

Cite this entry

Vera Project. “cpuz.sys.” Vera Field Guide (Driver). The Vera Project. https://www.veraproject.xyz/field-guide/drivers/cpuz-sys