CVE-2017-15303

7.8 highEPSS 1.6%

In CPUID CPU-Z before 1.43, there is an arbitrary memory write that results directly in elevation of privileges, because any program running on the local machine (while CPU-Z is running) can issue an ioctl 0x9C402430 call to the kernel-mode driver (e.g., cpuz141_x64.sys for version 1.41).

Severity

CVSS 3.0

7.8 high

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.6% chance of exploitation in the next 30 days; higher than 75% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2017-10-16
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

cpuid:cpu-z

References

https://github.com/akayn/Bugs/blob/master/CPUID/CVE-2017-15303/README.md
https://github.com/akayn/Bugs/blob/master/CPUID/CVE-2017-15303/README.md

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