Cisco Firepower and Secure Firewall

Published: 24/04/2026 03:54 AM Category: Alert CVE: CVE-2025-2333 CVE-2025-20362
HIGH SEVERITY

This malware can persist as an active threat on Cisco devices running ASA or Firepower Threat Defense (FTD) software, maintaining post-patching persistence and enabling threat actors to re-access compromised devices without re-exploiting vulnerabilities.

Affected Products

  • Firepower 1000 Series
  • Firepower 2100 Series
  • Firepower 4100 Series
  • Firepower 9300 Series
  • Secure Firewall 1200 Series
  • Secure Firewall 3100 Series
  • Secure Firewall 4200 Series

Further details on the affected devices are available on the vendor advisory Continued Evolution of Persistence Mechanism Against Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense.

Reference

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-persist-CISAED25-03