FIRESTARTER Backdoor Hit Federal Cisco Firepower Device, Survives Security Patches

Overview

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has revealed that an unnamed federal civilian agency's Cisco Firepower device running Adaptive Security Appliance (ASA) software was compromised in September 2025 with malware called FIRESTARTER. FIRESTARTER, per CISA and the U.K.'s National Cyber Security Centre (NCSC), is assessed to be a backdoor designed for remote access and

Key Developments

This reflects an evolving cybersecurity situation.

Technical Details

Attackers may use automation and vulnerabilities.

Impact & Risks

Potential disruption and data exposure.

Conclusion

Organizations must stay vigilant.

Read more: https://thehackernews.com/2026/04/firestarter-backdoor-hit-federal-cisco.html