CVE-2025-3066

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-04-02 · updated 2026-06-17
Weakness: CWE-416

Description

Use after free in Site Isolation in Google Chrome prior to 135.0.7049.84 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Affected products

Google Chrome: before 135.0.7049.52 — fixed in 135.0.7049.52

How to fix

Upgrade to a fixed version: Google Chrome 135.0.7049.52. Check the vendor advisory for mitigations.

References

https://chromereleases.googleblog.com/2025/04/stable-channel-update-for-desktop.html
https://issues.chromium.org/issues/405140652

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