CVE-2026-46174

Description

In the Linux kernel, the following vulnerability has been resolved: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache Make sure resources are not improperly shared in the op cache and cause instruction corruption this way.

CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0014

Probability of exploitation

0.04%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/1cd85a19748b2407830376a5cbae5c0f126016e5 https://git.kernel.org/stable/c/1e23b30a80b14e5764657401ee2cca030525ae8e https://git.kernel.org/stable/c/251497955f2314cd39d43191e81c6151dead4c7b https://git.kernel.org/stable/c/28f5ed477eef166d678d6966762cbc1de9b4f436 https://git.kernel.org/stable/c/9109489cc8c34e50d15575a3d1ff82af586bc1aa https://git.kernel.org/stable/c/c21b90f77687075115d989e53a8ec5e2bb427ab1 https://git.kernel.org/stable/c/f5bc3aef7df46eaaf423d7413ab8833f704ae576 https://git.kernel.org/stable/c/ff6fc65b3bf73acc5ee71919154d830ad5431362

Frequently Asked Questions

What is CVE-2026-46174? +

In the Linux kernel, the following vulnerability has been resolved: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache Make sure resources are not improperly shared in the op cache and cause instruction corruption this way. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-46174? +

CVE-2026-46174 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0014, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-46174? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.