CVE-2025-21408

Summary

CVE-2025-21408 is a remote code execution vulnerability affecting Microsoft Edge browsers based on Chromium. A successful exploit could allow an attacker to run malicious code on a victim's system, gaining unauthorized access and potentially installing malware. The precise cause of the issue is not yet publicly disclosed, but it is recommended that users apply the latest security updates to mitigate the risk. Microsoft has acknowledged the vulnerability and is working on a patch. Users should exercise caution when browsing the web and avoid visiting suspicious websites to minimize exposure.

Prevent cyber attacks with Recorded Future by prioritizing and patching critical vulnerabilities being exploited by threat actors targeting your industry. Book your demo to learn more.