CVE-2025-12433 Memory corruption in Chrome

Medium 4.3 Published Updated

Remote attackers can trigger out-of-bounds memory access in Chrome's V8 engine via crafted HTML, potentially leading to code execution or crashes.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2025-12433?

CVE-2025-12433 is a medium-severity memory corruption vulnerability in Google Chrome, published on 10 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Inappropriate implementation in V8 in Google Chrome prior to 142.0.7444.59 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)

Which versions are affected by CVE-2025-12433?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2025-12433?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-12433 being exploited?

There is no known exploitation of CVE-2025-12433 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

All Google Chrome vulnerabilities

Sources

Also known as AZL-70393, DEBIAN-CVE-2025-12433, GHSA-68h7-pm4h-c96m.

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