CVE-2025-3070 Privilege escalation in Chrome

What is CVE-2025-3070?

CVE-2025-3070 is a medium-severity vulnerability in Google Chrome, published on 2 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Insufficient validation of untrusted input in Extensions in Google Chrome prior to 135.0.7049.52 allowed a remote attacker to perform privilege escalation via a crafted HTML page. (Chromium security severity: Medium)

Weakness: CWE-1287, CWE-20

Which versions are affected by CVE-2025-3070?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2025-3070?

Upgrade to a fixed version.

Is CVE-2025-3070 being exploited?

There is no known exploitation of CVE-2025-3070 in the wild and no public exploit code.

Other vulnerabilities in Google Chrome

• CVE-2022-4135 Google Chromium GPU Heap Buffer Overflow Exploited Critical 9.6
• CVE-2020-16017 Google Chrome Use-After-Free Exploited Critical 9.6
• CVE-2020-16010 Google Chrome for Android UI Heap Buffer Overflow Exploited Critical 9.6
• CVE-2026-87491 Google Chromium V8 Out of Bounds Write Exploited High 8.8
• CVE-2026-85046 Google Chromium V8 Type Confusion Exploited High 8.8

All Google Chrome vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2025-3070, GHSA-ww4p-f4jp-c2xm.