Cyber Resilience

CVE-2026-46174

HighUpdated

Published: 28 May 2026

Published
28 May 2026
Modified
10 June 2026
KEV Added
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Patch
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CVSS Score v3.1 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.0013 2.9th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-46174 is a high-severity an unspecified weakness vulnerability in Linux Linux Kernel. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 2.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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.

CWE(s)
NVD-CWE-noinfo

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
Why these techniques?

Kernel fix for Zen2 op-cache resource isolation bug enabling instruction corruption; directly facilitates local privilege escalation via crafted exploitation of the cache-sharing flaw.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v19.0

Affected Assets

linux
linux kernel
4.14, 7.1 · 3.16.58 — 3.17 · 4.4.144 — 4.5 · 4.9.102 — 4.10

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References