How severe is CVE-2026-46174?

CVE-2026-46174 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-46174 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-46174?

CVE-2026-46174 primarily affects Linux Linux Kernel. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-46174?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-46174 have an EU (EUVD) identifier?

Yes. CVE-2026-46174 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32801.

When was CVE-2026-46174 published?

CVE-2026-46174 was published on 2026-05-28 and last updated on 2026-06-17.

CVE-2026-46174

CVE-2026-46174 is a high-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-32801
Affected product: Linux Linux Kernel
Published: 2026-05-28
Last modified: 2026-06-17

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.

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.
How severe is CVE-2026-46174?: CVE-2026-46174 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-46174 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-46174?: CVE-2026-46174 primarily affects Linux Linux Kernel. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-46174?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-46174 have an EU (EUVD) identifier?: Yes. CVE-2026-46174 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32801.
When was CVE-2026-46174 published?: CVE-2026-46174 was published on 2026-05-28 and last updated on 2026-06-17.

References

Affected products (12)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.14:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.14:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.14:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.14:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.14:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.14:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.14:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.14:rc8:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*

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