SF
Product
Secure Firewall Threat Defense
by Cisco · last CVE Aug 11, 2026
On CISA KEVExploited in the wildRansomware-linked
274
CVEs
11
On KEV
10.0
Max CVSS
0
New 30D
Severity mix
Critical 5High 138Medium 130Low 1
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2018-15388
8.6
2%
May 3
A vulnerability in the WebVPN login process of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated,…
Affected: before 6.2.3.12
CVE-2019-1669
8.6
1%
Jan 24
Cisco Firepower Threat Defense Software Packet Inspection and Enforcement Bypass Vulnerability
Affected: 6.3.0; 6.4.0
CVE-2018-15454
8.6
4%
Nov 1
A vulnerability in the Session Initiation Protocol (SIP) inspection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software…
Affected: 6.1.0 before 6.1.0.7; 6.2.0 before 6.2.0.6; 6.2.2 before 6.2.2.4; 6.2.3 before 6.2.3.7
CVE-2018-0240
8.6
4%
Apr 19
Multiple vulnerabilities in the Application Layer Protocol Inspection feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software…
Affected: 6.1.0 through 6.1.0.7; 6.2.0 before 6.2.0.5; 6.2.1 before 6.2.2.2
CVE-2018-0231
8.6
4%
Apr 19
A vulnerability in the Transport Layer Security (TLS) library of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an…
Affected: 6.0 before 6.1.0.6; 6.2.1 before 6.2.2.1
CVE-2018-0230
8.6
2%
Apr 19
A vulnerability in the internal packet-processing functionality of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series Security Appliances could allow an…
Affected: 6.2.1; 6.2.2
CVE-2018-0228
8.6
4%
Apr 19
A vulnerability in the ingress flow creation functionality of Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to cause the CPU to increase…
Affected: 6.0 before 6.1.0.6; 6.2.0 before 6.2.0.5; 6.2.1 before 6.2.2.2
CVE-2024-20412
8.4
0%
Oct 23
A vulnerability in Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 1000, 2100, 3100, and 4200 Series could allow an unauthenticated, local attacker to access an…
Affected: 7.1.0; 7.1.0.1; 7.1.0.2; 7.1.0.3; 7.2.0; 7.2.0.1; +17 more
CVE-2023-20063
8.2
0%
Nov 1
A vulnerability in the inter-device communication mechanisms between devices that are running Cisco Firepower Threat Defense (FTD) Software and devices that are running Cisco…
Affected: 6.2.3 through 6.2.3.18; 6.4.0 through 6.4.0.17; 6.6.0 through 6.6.7.1; 6.7.0 through 6.7.0.3; 7.0.0 through 7.0.5; 7.1.0 through 7.1.0.3; +1 more
CVE-2019-12674
8.2
1%
Oct 2
Multiple vulnerabilities in the multi-instance feature of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to escape the container for…
Affected: before 6.4.0.2
CVE-2018-0453
8.2
0%
Oct 5
A vulnerability in the Sourcefire tunnel control channel protocol in Cisco Firepower System Software running on Cisco Firepower Threat Defense (FTD) sensors could allow an…
Affected: 5.4.0; 6.0.0; 6.0.1; 6.1.0; 6.2.0; 6.2.1; +1 more
CVE-2021-34762
8.1
2%
Oct 27
A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to perform a directory…
Affected: before 6.4.0.13; 6.5.0 before 6.6.5; 6.7.0 before 6.7.0.3; 7.0.0 before 7.0.1
CVE-2020-3550
8.1
2%
Oct 21
A vulnerability in the sfmgr daemon of Cisco Firepower Management Center (FMC) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote…
Affected: through 6.0.1; 6.3.0 before 6.3.0.6; 6.4.0 before 6.4.0.10; 6.2.0; 6.2.1
CVE-2020-3549
8.1
1%
Oct 21
A vulnerability in the sftunnel functionality of Cisco Firepower Management Center (FMC) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated,…
Affected: before 6.6.1
CVE-2022-20729
7.8
0%
May 3
A vulnerability in CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to inject XML into the command parser
Affected: before 6.4.0.15; 6.5.0 before 6.6.5.2; 6.7.0 before 7.0.2
CVE-2021-34756
7.8
0%
Oct 27
Multiple vulnerabilities in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary commands with root…
Affected: 6.4.0 before 6.4.0.13; 6.6.0 before 6.6.5; 6.7.0 before 6.7.0.3; 7.0.0 before 7.0.1
CVE-2021-34755
7.8
0%
Oct 27
Multiple vulnerabilities in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary commands with root…
Affected: 6.4.0 before 6.4.0.13; 6.6.0 before 6.6.5; 6.7.0 before 6.7.0.3; 7.0.0 before 7.0.1
CVE-2021-1448
7.8
0%
Apr 29
A vulnerability in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges on the…
Affected: 6.4.0 before 6.4.0.10; 6.5.0 before 6.5.0.5; 6.6.0 before 6.6.1
CVE-2020-3167
7.8
1%
Feb 26
A vulnerability in the CLI of Cisco FXOS Software and Cisco UCS Manager Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying…
Affected: 6.2.2 before 6.2.3.13; 6.3.0 before 6.4.0.8; 6.5.0 before 6.5.0.2
CVE-2019-12699
7.8
1%
Oct 2
Multiple vulnerabilities in the CLI of Cisco FXOS Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute commands on…
Affected: through 6.1.0; 6.2.0 before 6.2.3.14; 6.3.0 before 6.3.0.3
CVE-2019-1709
7.8
1%
May 3
A vulnerability in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to perform a command injection attack
Affected: 6.0.0; 6.0.1; 6.1.0; 6.2.0; 6.2.1; 6.2.2; +1 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: 7.2.0 before 7.2.11; 7.3.0 before 7.4.3; 7.6.0 before 7.6.4; 7.7.0 before 7.7.10
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: 6.4.0 before 7.0.9; 7.1.0 before 7.2.11; 7.3.0 before 7.4.3; 7.6.0 before 7.6.4; 7.7.0 before 7.7.11
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 before 7.0.9; 7.1.0 before 7.2.11; 7.3.0 before 7.4.3; 7.6.0 before 7.6.4; 7.7.0 before 7.7.11
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; 6.4.0.2; 6.4.0.3; 6.4.0.4; 6.4.0.5; +34 more
CVE-2025-20127
7.7
1%
Aug 14
A vulnerability in the TLS 1.3 implementation for a specific cipher for Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense…
Affected: 7.4.0; 7.4.1; 7.4.1.1; 7.4.2; 7.4.2.1; 7.6.0
CVE-2024-20408
7.7
0%
Oct 23
A vulnerability in the Dynamic Access Policies (DAP) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an…
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-2024-20268
7.7
1%
Oct 23
A vulnerability in the Simple Network Management Protocol (SNMP) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software…
Affected: 6.6.0; 6.6.0.1; 6.6.1; 6.6.3; 6.6.4; 6.6.5; +34 more
CVE-2021-1422
7.7
1%
Jul 16
A vulnerability in the software cryptography module of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an…
Affected: 7.0.0.0
CVE-2022-20685
7.5
1%
Nov 15
A vulnerability in the Modbus preprocessor of the Snort detection engine could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an…
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-2024-20351
7.5
1%
Oct 23
A vulnerability in the TCP/IP traffic handling function of the Snort Detection Engine of Cisco Firepower Threat Defense (FTD) Software and Cisco FirePOWER Services could allow an…
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-2024-20339
7.5
1%
Oct 23
A vulnerability in the TLS processing feature of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series could allow an unauthenticated, remote attacker to…
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-2024-20330
7.5
1%
Oct 23
A vulnerability in the Snort 2 and Snort 3 TCP and UDP detection engine of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series Appliances could allow an…
Affected: 7.0.0.0; 7.0.0.1; 7.0.1; 7.0.1.1; 7.0.2; 7.0.2.1; +31 more
CVE-2023-20006
7.5
1%
Jun 28
A vulnerability in the hardware-based SSL/TLS cryptography functionality of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for…
Affected: 7.2.1; 7.2.2; 7.2.3
CVE-2023-20107
7.5
1%
Mar 23
A vulnerability in the deterministic random bit generator (DRBG), also known as pseudorandom number generator (PRNG), in Cisco Adaptive Security Appliance (ASA) Software and Cisco…
Affected: before 6.4.0
CVE-2022-20947
7.5
1%
Nov 15
A vulnerability in dynamic access policies (DAP) functionality of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an…
Affected: 6.1.0; 6.1.0.1; 6.1.0.2; 6.1.0.3; 6.1.0.4; 6.1.0.5; +34 more
CVE-2022-20946
7.5
1%
Nov 15
A vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote…
Affected: 6.3.0 through 6.3.0.5; 6.4.0 through 6.4.0.15; 6.5.0 through 6.5.0.5; 6.6.0 through 6.6.5.2; 6.7.0 through 6.7.0.3; 7.0.0 through 7.0.3; +3 more
CVE-2022-20854
7.5
1%
Nov 15
A vulnerability in the processing of SSH connections of Cisco Firepower Management Center (FMC) and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated,…
Affected: 6.1.0 through 6.1.0.7; 6.2.0 through 6.2.0.6; 6.2.2 through 6.2.2.5; 6.2.3 through 6.2.3.18; 6.3.0 through 6.3.0.5; 6.4.0 through 6.4.0.15; +19 more
CVE-2022-20866
7.5
19%
Aug 10
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software RSA Private Key Leak Vulnerability
Affected: 7.0.0 before 7.0.4; 7.1.0 before 7.2.0.1
CVE-2022-20767
7.5
2%
May 3
A vulnerability in the Snort rule evaluation function of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service…
Affected: before 7.0.2; 7.1.0
CVE-2022-20760
7.5
2%
May 3
A vulnerability in the DNS inspection handler of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated,…
Affected: before 6.4.0.15; 6.5.0 before 6.6.5.2; 7.0.0 before 7.0.2; 7.1.0
CVE-2022-20757
7.5
1%
May 3
A vulnerability in the connection handling function in Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service…
Affected: before 6.4.0.15; 6.5.0 before 6.6.5.2; 6.7.0 before 7.0.2; 7.1.0
CVE-2022-20751
7.5
1%
May 3
A vulnerability in the Snort detection engine integration for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause unlimited…
Affected: before 6.4.0.15; 6.5.0 before 6.6.5.2; 7.0.0 before 7.0.2; 7.1.0.0
CVE-2022-20746
7.5
1%
May 3
A vulnerability in the TCP proxy functionality of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a denial of service…
Affected: before 6.4.0.15; 6.5.0 before 6.6.5.2; 7.0.0 before 7.0.2; 7.1.0
CVE-2022-20745
7.5
1%
May 3
A vulnerability in the web services interface for remote access VPN features of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software…
Affected: before 6.4.0.15; 6.5.0 before 6.6.5.2; 7.0.0 before 7.0.2; 7.1.0
CVE-2022-20730
7.5
1%
May 3
A vulnerability in the Security Intelligence feed feature of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass the Security…
Affected: before 6.4.0.15; 6.5.0 before 6.6.5.2; 6.7.0 before 7.0.2
CVE-2022-20795
7.5
1%
Apr 21
A vulnerability in the implementation of the Datagram TLS (DTLS) protocol in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software…
Affected: through 7.0.1; 7.1.0.0 through 7.1.0.1
CVE-2021-34704
7.5
1%
Jan 11
A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated,…
Affected: 6.7.0 before 6.7.0.3; 7.0.0
CVE-2021-1573
7.5
1%
Jan 11
A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated,…
Affected: through 6.2.2; 6.2.3 before 6.4.0.13; 6.5.0 before 6.6.5; 6.7.0 before 6.7.0.3; 7.0.0
CVE-2021-40118
7.5
1%
Oct 27
A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated,…
Affected: before 6.4.0.13; 6.5.0 before 6.6.5; 6.7.0 before 6.7.0.3; 7.0.0 before 7.0.1
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