Buffer overflow in Cpuid Cpu-Z
CVE-2017-15303
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).
Vulnerability class: Buffer Overflow
EPSS: 0.015 (72.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Cpuid Cpu-z
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2017-15303?
- CVE-2017-15303 is a high-severity vulnerability in Cpuid Cpu-Z, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2017-10-16.
- How severe is CVE-2017-15303?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2017-15303 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.