Breach404
Back to Insights
Secure Software2 min readApril 24, 2026

Firestarter malware survives Cisco firewall updates, security patches

U.S. and U.K. cybersecurity agencies are warning that Firestarter malware can persist on Cisco Firepower and Secure Firewall devices even after security patches and updates are applied, meaning standard remediation efforts may not fully eliminate the thre

Could your website be vulnerable to attacks like this?

Run a free 10-point security scan on your site — headers, SSL, DNS, and more. Results in 15 seconds.

Test Your Site Now — It's Free