CISA Flags New Chromium Browser Exploit: CVE-2025-13223 in Active Use
On November 19, 2025, the Cybersecurity and Infrastructure Security Agency (CISA) added CVE-2025-13223—an actively exploited type confusion vulnerability in the Google Chromium V8 JavaScript engine—to its Known Exploited Vulnerabilities (KEV) Catalog. This flaw allows remote attackers to execute arbitrary code via a crafted web page, exploiting weaknesses in Chromium-based browsers used by federal and commercial entities. Threat actors have been leveraging this vulnerability to deliver malware and potentially gain unauthorized access to systems, heightening risk across government and enterprise environments. This incident is highly relevant as attackers continue to target zero-day and rapidly weaponized browser flaws, reflecting a broader trend of exploiting client-side vulnerabilities to bypass traditional network defenses. Regulatory and industry pressure for rapid patch management and strong endpoint protection is intensifying as attackers' tactics evolve.
Kill Chain