CS
Product
Cisco Secure Firewall Threat Defense (FTD) Software
by Cisco · last CVE Oct 21, 2026
On CISA KEVExploited in the wild
35
CVEs
3
On KEV
9.9
Max CVSS
12
New 30D
Severity mix
Critical 6High 17Medium 12Low 0
Watch

Add Cisco Secure Firewall Threat Defense (FTD) Software to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2025-20333
In wildKEV
9.9
71%
Sep 25
Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Buffer Overflow Vulnerability
Affected: 6.2.3; 6.2.3.1; 6.2.3.2; 6.2.3.3; 6.2.3.4; 6.2.3.5; +34 more
CVE-2026-20349
In wildKEV
8.6
1%
Aug 11
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerability
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2025-20362
In wildKEV
8.6
87%
Sep 25
Cisco Secure Firewall Adaptive Security (ASA) Appliance and Secure Firewall Threat Defense (FTD) Missing Authorization Vulnerability
Affected: 6.2.3; 6.2.3.1; 6.2.3.2; 6.2.3.3; 6.2.3.4; 6.2.3.5; +34 more
CVE-2026-20332
9.9
0%
Sep 16
Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Improper Access Control Vulnerabilities
Affected: 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.0.2.1; 7.0.3; +34 more
CVE-2026-20330
9.9
0%
Sep 16
Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Improper Neutralization Vulnerabilities
Affected: 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.0.2.1; 7.0.3; +34 more
CVE-2026-20329
9.9
0%
Sep 16
Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Exceptional Conditions Handling Vulnerabilities
Affected: 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.0.2.1; 7.0.3; +34 more
CVE-2026-20331
9.6
0%
Sep 16
Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Protection Mechanism Failure Vulnerabilities
Affected: 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.0.2.1; 7.0.3; +34 more
CVE-2026-20043
New
9.0
0%
Oct 21
Multiple Cisco Products Snort 3 Software Hardening Release: October 2026
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.0.2.1; +34 more
CVE-2026-20333
8.8
0%
Sep 16
Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Incorrect Comparison Vulnerabilities
Affected: 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.0.2.1; 7.0.3; +34 more
CVE-2026-20336
8.8
0%
Sep 16
Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Resource Lifetime Management Vulnerabilities
Affected: 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.0.2.1; 7.0.3; +34 more
CVE-2026-20154
8.6
1%
Sep 16
Cisco Secure Firewall Adaptive Security Appliance Software and Secure Firewall Threat Defense Software Logging Denial of Service
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-20135
8.6
1%
Sep 16
Cisco Secure Firewall Threat Defense Software TLS 1.3 Denial of Service Vulnerability
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-20249
8.6
0%
Sep 16
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software IKEv2 Certificate Authentication Denial of Service Vulnerability
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-20295
8.6
1%
Sep 16
Cisco Secure Firewall Management Center and Secure Firewall Threat Defense Software sftunnel Memory Exhaustion Denial of Service Vulnerability
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-20250
8.6
1%
Sep 16
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software for Firepower 3100 and 4200 Series DTLS Denial of Service Vulnerability
Affected: 7.6.0; 7.7.0; 7.6.1; 7.6.2; 7.7.10; 7.7.11; +4 more
CVE-2026-20012
8.6
0%
Mar 25
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)…
Affected: 6.2.3; 6.2.3.1; 6.2.3.2; 6.2.3.3; 6.2.3.4; 6.2.3.5; +34 more
CVE-2026-20334
8.4
0%
Sep 16
Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Coding Standards Vulnerabilities
Affected: 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.0.2.1; 7.0.3; +34 more
CVE-2026-20323
8.3
0%
Sep 16
Cisco Secure Firewall Management Center and Secure Firewall Threat Defense Software sftunnel Unauthorized Authentication Bypass Vulnerability
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-20335
8.1
0%
Sep 16
Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Incorrect Calculation Vulnerabilities
Affected: 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.0.2.1; 7.0.3; +34 more
CVE-2026-20291
New
7.8
0%
Oct 21
Multiple Cisco Products Snort 3 Software Hardening Release: October 2026
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-20356
New
7.5
0%
Oct 21
Multiple Cisco Products Snort 3 Software Hardening Release: October 2026
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-20236
New
7.5
0%
Oct 21
Multiple Cisco Products Snort 3 Software Hardening Release: October 2026
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-20222
7.4
0%
Sep 16
Cisco Secure Adaptive Security Appliance Software and Secure Firewall Threat Defense Software EIGRP Denial of Service Vulnerability
Affected: 7.3.0; 7.3.1; 7.3.1.1; 7.4.0; 7.4.1; 7.4.1.1; +19 more
CVE-2026-20248
6.8
0%
Sep 16
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software TCP DNS Denial of Service Vulnerability
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-76489
New
5.8
0%
Oct 21
Multiple Cisco Products Snort 3 Generic File Processing Memory Exhaustion Denial of Service Vulnerability
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-20221
New
5.8
1%
Oct 21
Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service Vulnerabilities
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-20197
New
5.8
0%
Oct 21
Multiple Cisco Products Snort 3 Teredo Protocol Denial of Service Vulnerability
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-20218
New
5.8
1%
Oct 21
Cisco Secure Firewall Threat Defense Snort 3 Visual Basic for Applications Buffer Overflow Denial of Service Vulnerability
Affected: 7.2.0; 7.2.0.1; 7.2.1; 7.3.0; 7.2.2; 7.2.3; +34 more
CVE-2026-20179
New
5.8
0%
Oct 21
Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service Vulnerabilities
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-20019
New
5.8
1%
Oct 21
Multiple Cisco Products Snort 3 Netflow Denial of Service Vulnerabilities
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-20011
New
5.8
1%
Oct 21
Multiple Cisco Products Snort 3 SMTP MIME Denial of Service Vulnerability
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-20120
5.8
1%
Sep 16
Cisco FTD ACL bypass vulnerability
Affected: 7.6.0; 7.7.0; 7.6.1; 7.6.2; 7.7.10; 7.7.11; +2 more
CVE-2026-20290
5.8
0%
Sep 16
Cisco Secure Firewall Threat Defense Software Snort 2 SSL/TLS Denial of Service Vulnerability
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-76445
New
5.3
1%
Oct 21
Multiple Cisco Products Snort 3 Denial of Service Vulnerability
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.2.0; +34 more
CVE-2026-20121
5.3
1%
Sep 16
CIsco FTD Bypass Access List
Affected: 7.6.0; 7.7.0; 7.6.1; 7.6.2; 7.7.10; 7.7.11; +2 more
Showing 35