Active Exploitation of Undisclosed Chrome Zero-Day Vulnerability

Google has released urgent security updates for the Chrome browser to address a high-severity vulnerability that is being actively exploited in the wild. The flaw, tracked internally as issue 466192044, remains undisclosed in terms of its technical details, affected component, and CVE identifier, as Google is withholding this information to protect users while patches are deployed. Alongside this critical issue, two other medium-severity vulnerabilities—CVE-2025-14372 (use-after-free in Password Manager) and CVE-2025-14373 (inappropriate implementation in Toolbar)—were also fixed. Users of Chrome and other Chromium-based browsers such as Microsoft Edge, Brave, Opera, and Vivaldi are strongly advised to update to the latest versions to mitigate risk.

Security researchers have identified that the actively exploited vulnerability involves type confusion issues in Chrome’s V8 JavaScript engine, which can allow attackers to manipulate memory and potentially execute arbitrary code simply by luring users to malicious or compromised websites. With Chrome’s vast user base, the exposure is significant, and attackers are known to exploit such flaws before most users have updated. Google and security experts emphasize the importance of promptly applying browser updates and restarting Chrome to ensure protection against these in-the-wild attacks.