Dossier
Cisco Firepower
Coverage of Cisco Firepower in the Nexus archive.
Firestartertopic1Secure Firewalltopic1Adaptive Security Appliance (ASA)topic1Firepower Threat Defense (FTD)topic1U.S. Cybersecurity and Infrastructure Security Agency (CISA)organization1U.K. National Cyber Security Centre (NCSC)organization1Cisco Systemsorganization1U.S. Cybersecurity and Infrastructure Security Agencyorganization1National Cyber Security Centreorganization1Adaptive Security Applianceproduct1FIRESTARTERtopic1Unnamed Federal Civilian Agencyorganization1
- Firestarter malware survives Cisco firewall updates, security patches
U.S. and U.K. cybersecurity agencies warn that a custom malware named Firestarter is persisting on Cisco Firepower and Secure Firewall devices using Adaptive Security Appliance (ASA) or Firepower Threat Defense (FTD) software despite updates and patches.
- FIRESTARTER Backdoor Hit Federal Cisco Firepower Device, Survives Security Patches
CISA and the UK's NCSC disclosed that a federal civilian agency's Cisco Firepower device running ASA software was compromised in September 2025 by the FIRESTARTER backdoor malware. The malware, designed for remote access, persisted despite security patches, indicating a sophisticated cyberattack.