# CVE-2025-20333: A Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense bug is being used in attacks

Status: Being used now (CISA KEV, added 2025-09-25)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense (CVE-2025-20333) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2025-20333. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official description
Cisco Secure Firewall Adaptive Security (ASA) Appliance and Secure Firewall Threat Defense (FTD) Software VPN Web Server contain a buffer overflow vulnerability that allows for remote code execution. This vulnerability could be chained with CVE-2025-20362.

## Sources
- https://www.cisa.gov/news-events/directives/supplemental-direction-ed-25-03-core-dump-and-hunt-instructions
- https://www.cisa.gov/eviction-strategies-tool/create-from-template
- https://sec.cloudapps.cisco.com/security/center/resources/asa_ftd_continued_attacks
- https://sec.cloudapps.cisco.com/security/center/private/resources/asa_ftd_continued_attacks#Details
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-webvpn-z5xP8EUB
- https://nvd.nist.gov/vuln/detail/CVE-2025-20333
- https://nvd.nist.gov/vuln/detail/CVE-2025-20333

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.