Cisco Secure Firewall Threat Defense (FTD) Software
68 CVEs tracked. 3 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
| Month | CVEs |
|---|---|
| 2024-10 | 1 |
| 2024-11 | 0 |
| 2024-12 | 0 |
| 2025-01 | 0 |
| 2025-02 | 0 |
| 2025-03 | 0 |
| 2025-04 | 0 |
| 2025-05 | 0 |
| 2025-06 | 0 |
| 2025-07 | 0 |
| 2025-08 | 0 |
| 2025-09 | 2 |
| 2025-10 | 2 |
| 2025-11 | 0 |
| 2025-12 | 0 |
| 2026-01 | 2 |
| 2026-02 | 0 |
| 2026-03 | 40 |
| 2026-04 | 0 |
| 2026-05 | 0 |
| 2026-06 | 0 |
| 2026-07 | 0 |
| 2026-08 | 1 |
| 2026-09 | 19 |
Severity
How the 68 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.
- Critical5
- High21
- Medium42
Latest CVEs
The 15 most recently published vulnerabilities affecting Cisco Secure Firewall Threat Defense (FTD) Software.
- CVE-2026-20121CIsco FTD Bypass Access List5.3
- CVE-2026-20120Cisco FTD ACL bypass vulnerability5.8
- CVE-2026-20290Cisco Secure Firewall Threat Defense Software Snort 2 SSL/TLS Denial of Service Vulnerability5.8
- CVE-2026-20248Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software TCP DNS Denial of Service Vulnerability6.8
- CVE-2026-20323Cisco Secure Firewall Management Center and Secure Firewall Threat Defense Software sftunnel Unauthorized Authentication Bypass Vulnerability8.3
- CVE-2026-20333Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Incorrect Comparison Vulnerabilities8.8
- CVE-2026-20334Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Coding Standards Vulnerabilities8.4
- CVE-2026-20332Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Improper Access Control Vulnerabilities9.9
- CVE-2026-20154Cisco Secure Firewall Adaptive Security Appliance Software and Secure Firewall Threat Defense Software Logging Denial of Service8.6
- CVE-2026-20222Cisco Secure Adaptive Security Appliance Software and Secure Firewall Threat Defense Software EIGRP Denial of Service Vulnerability7.4
- CVE-2026-20135Cisco Secure Firewall Threat Defense Software TLS 1.3 Denial of Service Vulnerability8.6
- CVE-2026-20336Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Resource Lifetime Management Vulnerabilities8.8
- CVE-2026-20249Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software IKEv2 Certificate Authentication Denial of Service Vulnerability8.6
- CVE-2026-20335Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Incorrect Calculation Vulnerabilities8.1
- CVE-2026-20295Cisco Secure Firewall Management Center and Secure Firewall Threat Defense Software sftunnel Memory Exhaustion Denial of Service Vulnerability8.6
Product grouping is registry-driven, with AI assist and human review. How it works