CVE-2025-6554 Google Chromium V8 Type Confusion
A type confusion flaw in Chrome's V8 engine allows remote attackers to perform arbitrary read/write operations via a crafted HTML page.
- Exploited in the wild
- Since 2 Jul 2025
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-6554?
CVE-2025-6554 is a high-severity memory corruption vulnerability in Google Chrome, published on 30 Jun 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
Type confusion in V8 in Google Chrome prior to 138.0.7204.96 allowed a remote attacker to perform arbitrary read/write via a crafted HTML page. (Chromium security severity: High)
Weakness: CWE-843
Which versions are affected by CVE-2025-6554?
It affects 1 product.
Products include Google Chrome.
How do I fix CVE-2025-6554?
Upgrade to a fixed version. US federal agencies must fix it by 23 Jul 2025.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-6554 being exploited?
Yes. Attackers have exploited CVE-2025-6554 in the wild since at least 2 Jul 2025.
Public exploit code: 8 proofs of concept on GitHub.
Other vulnerabilities in Google Chrome
Sources
Also known as AZL-76320, DEBIAN-CVE-2025-6554, DSA-5955-1, GHSA-mj9c-f5v6-7665.