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Cisco Secure Firewall Threat Defense (FTD) Software

81 CVEs tracked. 4 of them are in CISA KEV.

This hub aggregates every CVE we track for Cisco Secure Firewall Threat Defense (FTD) Software, a product in the networking infrastructure space. Use it to gauge the current risk picture and drill into individual advisories.

Cisco Secure Firewall Threat Defense (FTD) Software CVEs per month

Dec 2024 to Nov 2026. Point at a month, or focus the strip and use the arrow keys.
Cisco Secure Firewall Threat Defense (FTD) Software CVEs per month
MonthCVEs
2024-120
2025-010
2025-020
2025-030
2025-040
2025-050
2025-060
2025-070
2025-080
2025-092
2025-102
2025-110
2025-120
2026-012
2026-020
2026-0340
2026-040
2026-050
2026-060
2026-070
2026-081
2026-0919
2026-1013
2026-110

Severity

How the 81 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.

  • Critical67%
  • High2531%
  • Medium5062%

Latest CVEs

The 15 most recently published vulnerabilities affecting Cisco Secure Firewall Threat Defense (FTD) Software.

  1. CVE-2026-76418Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Tunnel Denial of Service Vulnerability8.6
  2. CVE-2026-76489Multiple Cisco Products Snort 3 Generic File Processing Memory Exhaustion Denial of Service Vulnerability5.8
  3. CVE-2026-76445Multiple Cisco Products Snort 3 Denial of Service Vulnerability5.3
  4. CVE-2026-20356Multiple Cisco Products Snort 3 Software Hardening Release: October 20267.5
  5. CVE-2026-20236Multiple Cisco Products Snort 3 Software Hardening Release: October 20267.5
  6. CVE-2026-20291Multiple Cisco Products Snort 3 Software Hardening Release: October 20267.8
  7. CVE-2026-20221Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service Vulnerabilities5.8
  8. CVE-2026-20197Multiple Cisco Products Snort 3 Teredo Protocol Denial of Service Vulnerability5.8
  9. CVE-2026-20218Cisco Secure Firewall Threat Defense Snort 3 Visual Basic for Applications Buffer Overflow Denial of Service Vulnerability5.8
  10. CVE-2026-20043Multiple Cisco Products Snort 3 Software Hardening Release: October 20269.0
  11. CVE-2026-20179Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service Vulnerabilities5.8
  12. CVE-2026-20019Multiple Cisco Products Snort 3 Netflow Denial of Service Vulnerabilities5.8
  13. CVE-2026-20011Multiple Cisco Products Snort 3 SMTP MIME Denial of Service Vulnerability5.8
  14. CVE-2026-20121CIsco FTD Bypass Access List5.3
  15. CVE-2026-20120Cisco FTD ACL bypass vulnerability5.8

Product grouping is registry-driven, with AI assist and human review. How it works