Cisco Cisco Secure Firewall Threat Defense (FTD) Software

• CVE-2026-76418 High 8.6 Exploited Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Tunnel Denial of Service Vulnerability 0.8%
• CVE-2026-20349 High 8.6 Exploited Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerability 1.0%
• CVE-2025-20362 Medium 6.5 Exploited Update: On November 5, 2025, Cisco became aware of a new attack variant against devices running Cisco Secure ASA Software or Cisco Secure FTD Software releases that are affected by CVE-2025-20333 and 86.7%
• CVE-2025-20333 Critical 9.9 Exploited A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, remote a 72.0%
• CVE-2026-76489 Medium 5.8 Multiple Cisco Products Snort 3 Generic File Processing Memory Exhaustion Denial of Service Vulnerability 0.5%
• CVE-2026-76445 Medium 5.3 Multiple Cisco Products Snort 3 Denial of Service Vulnerability 0.5%
• CVE-2026-20356 High 7.5 Multiple Cisco Products Snort 3 Software Hardening Release: October 2026 0.4%
• CVE-2026-20236 High 7.5 Multiple Cisco Products Snort 3 Software Hardening Release: October 2026 0.4%
• CVE-2026-20221 Medium 5.8 Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service Vulnerabilities 0.6%
• CVE-2026-20291 High 7.8 Multiple Cisco Products Snort 3 Software Hardening Release: October 2026 0.2%
• CVE-2026-20197 Medium 5.8 Multiple Cisco Products Snort 3 Teredo Protocol Denial of Service Vulnerability 0.5%
• CVE-2026-20218 Medium 5.8 Cisco Secure Firewall Threat Defense Snort 3 Visual Basic for Applications Buffer Overflow Denial of Service Vulnerability 0.6%
• CVE-2026-20179 Medium 5.8 Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service Vulnerabilities 0.5%
• CVE-2026-20043 Critical 9.0 Multiple Cisco Products Snort 3 Software Hardening Release: October 2026 0.4%
• CVE-2026-20019 Medium 5.8 Multiple Cisco Products Snort 3 Netflow Denial of Service Vulnerabilities 0.5%
• CVE-2026-20011 Medium 5.8 Multiple Cisco Products Snort 3 SMTP MIME Denial of Service Vulnerability 0.5%
• CVE-2026-20121 Medium 5.3 CIsco FTD Bypass Access List 0.5%
• CVE-2026-20120 Medium 5.8 Cisco FTD ACL bypass vulnerability 0.5%
• CVE-2026-20290 Medium 5.8 Cisco Secure Firewall Threat Defense Software Snort 2 SSL/TLS Denial of Service Vulnerability 0.3%
• CVE-2026-20248 Medium 6.8 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software TCP DNS Denial of Service Vulnerability 0.5%
• CVE-2026-20323 High 8.3 Cisco Secure Firewall Management Center and Secure Firewall Threat Defense Software sftunnel Unauthorized Authentication Bypass Vulnerability 0.1%
• CVE-2026-20333 High 8.8 Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Incorrect Comparison Vulnerabilities 0.5%
• CVE-2026-20334 High 8.4 Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Coding Standards Vulnerabilities 0.4%
• CVE-2026-20332 Critical 9.9 Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Improper Access Control Vulnerabilities 0.4%
• CVE-2026-20154 High 8.6 Cisco Secure Firewall Adaptive Security Appliance Software and Secure Firewall Threat Defense Software Logging Denial of Service 0.6%
• CVE-2026-20222 High 7.4 Cisco Secure Adaptive Security Appliance Software and Secure Firewall Threat Defense Software EIGRP Denial of Service Vulnerability 0.3%
• CVE-2026-20135 High 8.6 Cisco Secure Firewall Threat Defense Software TLS 1.3 Denial of Service Vulnerability 0.7%
• CVE-2026-20336 High 8.8 Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Resource Lifetime Management Vulnerabilities 0.3%
• CVE-2026-20249 High 8.6 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software IKEv2 Certificate Authentication Denial of Service Vulnerability 0.4%
• CVE-2026-20335 High 8.1 Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Incorrect Calculation Vulnerabilities 0.4%
• CVE-2026-20295 High 8.6 Cisco Secure Firewall Management Center and Secure Firewall Threat Defense Software sftunnel Memory Exhaustion Denial of Service Vulnerability 0.6%
• CVE-2026-20250 High 8.6 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software for Firepower 3100 and 4200 Series DTLS Denial of Service Vulnerability 0.6%
• CVE-2026-20330 Critical 9.9 Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Improper Neutralization Vulnerabilities 0.5%
• CVE-2026-20329 Critical 9.9 Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Exceptional Conditions Handling Vulnerabilities 0.5%
• CVE-2026-20331 Critical 9.6 Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Protection Mechanism Failure Vulnerabilities 0.3%
• CVE-2026-20012 High 8.6 A vulnerability in the Internet Key Exchange version 2 (IKEv2) feature of Cisco IOS Software, Cisco IOS XE Software, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, and Cisco Secure 0.4%
• CVE-2026-20064 Medium 6.5 A vulnerability in of Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, local attacker to cause the device to unexpectedly reload, causing a denial of service (DoS) con 0.1%
• CVE-2026-20025 Medium 6.8 A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpecte 0.2%
• CVE-2026-20024 Medium 6.8 A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpecte 0.2%
• CVE-2026-20023 Medium 6.1 A vulnerability in the OSPF protocol of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, adjacen 0.2%
• CVE-2026-20022 Medium 6.1 A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpec 0.2%
• CVE-2026-20021 Medium 4.3 A vulnerability in the OSPF protocol of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, adjacent 0.2%
• CVE-2026-20020 Medium 6.8 A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpec 0.3%
• CVE-2026-20016 Medium 6.0 A vulnerability in the Cisco FXOS Software CLI feature for Cisco Secure Firewall ASA Software and Secure FTD Software could allow an authenticated, local attacker to execute arbitrary commands on the 0.4%
• CVE-2026-20073 Medium 5.8 Cisco Secure Firewall Adaptive Security Appliance Software and Cisco Secure Firewall Threat Defense Software Access Control List Bypass Vulnerability 0.4%
• CVE-2026-20102 Medium 6.1 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software SAML Reflected Cross-Site Scripting Vulnerability 0.3%
• CVE-2026-20070 Medium 6.1 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software VPN Web Services Cross-Site Scripting Vulnerability 0.3%
• CVE-2026-20069 Medium 4.3 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software VPN Web Services Client-Side Request Smuggling Vulnerability 0.3%
• CVE-2026-20068 Medium 5.8 Multiple Cisco Products Snort 3 TBD Denial of Service Vulnerability 0.5%
• CVE-2026-20067 Medium 5.8 Multiple Cisco Products Snort 3 TBD Denial of Service Vulnerability 0.5%