CS
Product
Cisco Secure Firewall Threat Defense (FTD) Software
by Cisco · last CVE Oct 28, 2026
On CISA KEVExploited in the wild
80
CVEs
3
On KEV
9.9
Max CVSS
13
New 30D
Severity mix
Critical 7High 26Medium 47Low 0
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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-2025-20359
9.1
0%
Oct 15
Multiple Cisco Products Snort 3 MIME Information Disclosure or Denial of Service Vulnerability
Affected: 7.4.1; 7.4.1.1; 7.6.0; 7.4.2; 7.4.2.1; 7.7.0; +4 more
CVE-2026-20043
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-2026-76418
New
8.6–Oct 28
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Tunnel 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-2026-20154
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-2026-20103
8.6
0%
Mar 4
A vulnerability in the Remote Access SSL VPN functionality of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD) Software…
Affected: 6.4.0.16; 6.4.0.17; 6.4.0.18; 7.0.4; 7.0.5; 7.0.6; +34 more
CVE-2026-20101
8.6
0%
Mar 4
A vulnerability in the SAML 2.0 single sign-on (SSO) feature of Cisco Secure Firewall ASA Software and Secure FTD Software could allow an unauthenticated, remote attacker to cause…
Affected: 6.4.0; 6.4.0.1; 6.4.0.3; 6.4.0.2; 6.4.0.4; 6.4.0.5; +34 more
CVE-2026-20039
8.6
0%
Mar 4
Cisco Adaptive Security Appliance and Firepower Threat Defense Software SSL VPN Authentication Denial of Service Vulnerability
Affected: 6.4.0.1; 6.4.0.2; 6.4.0.5; 6.4.0; 6.4.0.3; 6.4.0.4; +34 more
CVE-2024-20260
8.6
1%
Oct 23
Cisco Adaptive Security Virtual Appliance and Secure Firewall Threat Defense Virtual 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-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
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-2026-20049
7.7
0%
Mar 4
A vulnerability in the processing of Galois/Counter Mode (GCM)-encrypted Internet Key Exchange version 2 (IKEv2) IPsec traffic of Cisco Secure Firewall Adaptive Security Appliance…
Affected: 6.4.0.10; 6.4.0.11; 6.4.0.12; 6.4.0.13; 6.4.0.14; 6.4.0.15; +34 more
CVE-2026-20014
7.7
0%
Mar 4
A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, remote attacker with valid VPN user…
Affected: 7.2.0; 7.2.0.1; 7.2.1; 7.2.2; 7.2.3; 7.2.4; +30 more
CVE-2026-20105
7.7
0%
Mar 4
A vulnerability in the Remote Access SSL VPN functionality of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD) Software…
Affected: 6.4.0; 6.4.0.1; 6.4.0.3; 6.4.0.2; 6.4.0.4; 6.4.0.5; +34 more
CVE-2026-20100
7.7
0%
Mar 4
A vulnerability in the LUA interperter of the Remote Access SSL VPN feature of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense…
Affected: 6.4.0; 6.4.0.1; 6.4.0.3; 6.4.0.2; 6.4.0.4; 6.4.0.5; +34 more
CVE-2026-20356
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
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-2026-20025
6.8
0%
Mar 4
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…
Affected: 6.4.0; 6.4.0.1; 6.4.0.3; 6.4.0.2; 6.4.0.4; 6.4.0.5; +34 more
CVE-2026-20050
6.8
0%
Mar 4
Cisco Secure Firewall Threat Defense Decryption Policy Denial of Service Vulnerability
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.1.0; 7.0.1.1; 7.1.0.1; +34 more
CVE-2026-20016
6.7
0%
Mar 4
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…
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-2026-20064
6.5
0%
Mar 4
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…
Affected: 6.4.0; 6.4.0.1; 6.4.0.3; 6.4.0.2; 6.4.0.4; 6.4.0.5; +34 more
CVE-2026-20023
6.5
0%
Mar 4
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…
Affected: 6.4.0; 6.4.0.1; 6.4.0.3; 6.4.0.2; 6.4.0.4; 6.4.0.5; +34 more
CVE-2026-20022
6.5
0%
Mar 4
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…
Affected: 6.4.0; 6.4.0.1; 6.4.0.3; 6.4.0.2; 6.4.0.4; 6.4.0.5; +34 more
CVE-2026-20102
6.1
0%
Mar 4
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software SAML Reflected Cross-Site Scripting Vulnerability
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.1.0; 7.0.1.1; 7.1.0.1; +2 more
CVE-2026-20070
6.1
0%
Mar 4
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software VPN Web Services Cross-Site Scripting Vulnerability
Affected: 6.4.0.1; 6.4.0.2; 6.4.0.5; 6.4.0; 6.4.0.3; 6.4.0.4; +34 more
CVE-2026-20063
6.0
0%
Mar 4
Cisco Secure FTD Software Authenticated Command Injection Vulnerability
Affected: 7.6.0; 7.7.0; 7.6.1; 7.6.2; 7.7.10; 7.6.2.1; +1 more
CVE-2026-20017
6.0
0%
Mar 4
Cisco Secure FTD Software Authenticated Command Injection Vulnerability
Affected: 6.4.0.1; 6.4.0.2; 6.4.0.5; 6.4.0; 6.4.0.3; 6.4.0.4; +34 more
CVE-2026-20008
6.0
0%
Mar 4
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Lua Code Injection Vulnerability
Affected: 6.4.0.1; 6.4.0.2; 6.4.0.5; 6.4.0; 6.4.0.3; 6.4.0.4; +34 more
CVE-2026-20018
5.9
0%
Mar 4
Cisco Firepower Management Center Software and Firepower Threat Defense Path Traversal Vulnerability
Affected: 7.0.0; 7.0.0.1; 7.0.1; 7.1.0; 7.0.1.1; 7.1.0.1; +34 more
CVE-2026-76489
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
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
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
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
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