CVE-2025-54518

What it is

Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow an attacker to corrupt instructions executed at a different privilege level, potentially resulting in privilege escalation.

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.3% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2026-05-15 05:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-09-10 13:16 UTC Last updatedMost recent change to the record

Details

Published

2026-05-15 05:16 UTC

Last modified

2026-09-10 13:16 UTC

Exploit probability

0.3% · EPSS, next 30 days

Weakness

CWE-1189

Record status

Awaiting Analysis

Attack profile CVSS 4.0 · 7.3

Attack vector

Local

Complexity

High

Attack requirements

None

Privileges needed

Low

User interaction

None

Confidentiality

High

Integrity

High

Availability

High