What is CVE-2026-46174?

CVE-2026-46174 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10, affecting Linux kernel versions from 3.16.58 onward and patched in 5.10.256, 5.15.207, 6.1.173 and others. CVE-2026-46174 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-46174?

CVE-2026-46174 has a CVSS score of 8.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Is there a patch available for CVE-2026-46174?

Yes, CVE-2026-46174 has been patched. Fixed versions include 5.10.256, 5.15.207, 6.1.173 and others. If you are running Linux kernel 3.16.58 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-46174 actively exploited?

CVE-2026-46174 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-46174

High

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.

Package Linux Kernel

Published 2026-05-28

Last modified 2026-07-14

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

8.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Affected versions

Linux kernel versions 3.16.58, 4.4.144, 4.9.102, 4.14 and later are affected. Fixed in 5.10.256, 5.15.207, 6.1.173, 6.6.139, 6.12.88, 6.18.30, 7.0.7, 7.1 and their respective stable series.

Affected from

≥ 3.16.58 ≥ 4.4.144 ≥ 4.9.102 ≥ 4.14

Fixed in

✓ 5.10.256 5.10.x ✓ 5.15.207 5.15.x ✓ 6.1.173 6.1.x ✓ 6.6.139 6.6.x ✓ 6.12.88 6.12.x ✓ 6.18.30 6.18.x ✓ 7.0.7 7.0.x ✓ 7.1

References

10 total

Kernel Git
https://git.kernel.org/stable/c/1cd85a19748b2407830376a5cbae5c0f126016e5

Patch
Kernel Git
https://git.kernel.org/stable/c/1e23b30a80b14e5764657401ee2cca030525ae8e

Patch
Kernel Git
https://git.kernel.org/stable/c/251497955f2314cd39d43191e81c6151dead4c7b

Patch
Kernel Git
https://git.kernel.org/stable/c/28f5ed477eef166d678d6966762cbc1de9b4f436

Patch
Kernel Git
https://git.kernel.org/stable/c/9109489cc8c34e50d15575a3d1ff82af586bc1aa

Patch

Showing 5 of 10 references View all on NVD

Details

CVE ID CVE-2026-46174

Severity High

CVSS score 8.8 / 10

CVSS version 3.1

Published 2026-05-28

Modified 2026-07-14

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-46174?

CVE-2026-46174 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10 . It affects Linux kernel versions from 3.16.58 onward and has been patched in 5.10.256, 5.15.207, 6.1.173 and others. CVE-2026-46174 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-46174?

CVE-2026-46174 has a CVSS score of 8.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
Is there a patch available for CVE-2026-46174?

Yes. CVE-2026-46174 has been patched. Fixed versions include 5.10.256, 5.15.207, 6.1.173 and others. If you are running Linux kernel 3.16.58 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-46174 actively exploited?

No. CVE-2026-46174 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.