A zero-day vulnerability in Chromium-based browsers is now being actively exploited and it poses a serious risk to users across industries, including defense and government contractors. The flaw, CVE-2025-6554, allows attackers to execute malicious code simply by luring a user to a compromised website. That’s right. No clicks, no downloads. All it takes is visiting the wrong webpage.
Anyone using a Chromium-based browser — which includes most major browsers — is vulnerable. For cleared contractors and organizations handling sensitive information, this kind of “drive-by” exploit can lead to system compromise, data exfiltration, and downstream risks to national security.
This exploit is dangerously simple. There’s no phishing email and no file downloading. If your browser is unpatched and you land on a malicious or compromised site, the exploit can trigger instantly.
That makes it an ideal tool for:
We’re tracking the situation closely and standing by to assist. ISI teams can help you:
This is an actively exploited zero-day with no user interaction required. The threat is real and immediate and so is the fix. Update your browser now and help others in your company do the same. It's the simplest, most effective way to stay safe.