Heap Corruption Race in V8 -> Chrome <143.0.7499.41
CVE-2025-13721 Published on December 2, 2025
Race in v8 in Google Chrome prior to 143.0.7499.41 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)
Vulnerability Analysis
CVE-2025-13721 can be exploited with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Race Condition Vulnerability?
The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.
CVE-2025-13721 has been classified to as a Race Condition vulnerability or weakness.
Products Associated with CVE-2025-13721
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Affected Versions
Google Chrome:- Version 143.0.7499.41 and below 143.0.7499.41 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.