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-2021-40117
7.5
2%
Oct 27
A vulnerability in SSL/TLS message handler for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated,…
Affected: before 6.2.3.17; 6.3.0 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-2021-40116
7.5
1%
Oct 27
Multiple Cisco products are affected by a vulnerability in Snort rules that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an…
Affected: 6.4.0 before 6.4.0.13; 6.6.0 before 6.6.5.1; 6.7.0 before 6.7.0.3; 7.0.0 before 7.0.1
CVE-2021-40114
7.5
2%
Oct 27
Multiple Cisco products are affected by a vulnerability in the way the Snort detection engine processes ICMP traffic that could allow an unauthenticated, remote attacker to cause…
Affected: before 6.4.0.12; 6.5.0 before 6.6.3; 6.7.0 before 6.7.0.2
CVE-2021-34792
7.5
1%
Oct 27
A vulnerability in the memory management of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote…
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-2021-34783
7.5
2%
Oct 27
A vulnerability in the software-based SSL/TLS message handler of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an…
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-2021-34781
7.5
1%
Oct 27
A vulnerability in the processing of SSH connections for multi-instance deployments of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote…
Affected: 6.3.0 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-2021-34754
7.5
1%
Oct 27
Multiple vulnerabilities in the payload inspection for Ethernet Industrial Protocol (ENIP) traffic for Cisco Firepower Threat Defense (FTD) Software could allow an…
Affected: 6.4.0 before 6.4.0.13; 6.6.0 before 6.6.5.1; 6.7.0 before 6.7.0.3; 7.0.0 before 7.0.1
CVE-2021-1504
7.5
2%
Apr 29
Multiple vulnerabilities in Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a…
Affected: 6.5.0 before 6.6.4; 6.7.0 before 6.7.0.1
CVE-2021-1501
7.5
1%
Apr 29
A vulnerability in the SIP inspection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated,…
Affected: 6.2.2 before 6.4.0.12; 6.5.0 before 6.6.4; 6.7.0 before 6.7.0.2
CVE-2021-1445
7.5
2%
Apr 29
Multiple vulnerabilities in Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a…
Affected: 6.5.0 before 6.6.4; 6.7.0 before 6.7.0.1
CVE-2021-1223
7.5
2%
Jan 13
Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for…
Affected: before 6.7.0
CVE-2020-3555
7.5
2%
Oct 21
A vulnerability in the SIP inspection process of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated,…
Affected: through 6.2.2; 6.3.0 before 6.3.0.6; 6.4.0 before 6.4.0.10; 6.5.0 before 6.5.0.5; 6.6.0
CVE-2020-3554
7.5
3%
Oct 21
A vulnerability in the TCP packet processing of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated,…
Affected: through 6.2.2; 6.3.0 before 6.4.0.10; 6.5.0 before 6.5.0.5; 6.6.0
CVE-2020-3533
7.5
2%
Oct 21
A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote…
Affected: before 6.3.0.6; 6.4.0 before 6.4.0.10; 6.5.0 before 6.5.0.5; 6.6.0 before 6.6.1
CVE-2020-3529
7.5
2%
Oct 21
A vulnerability in the SSL VPN negotiation process for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an…
Affected: before 6.3.0.6; 6.4.0 before 6.4.0.10; 6.5.0 before 6.5.0.5; 6.6.0 before 6.6.1
CVE-2020-3528
7.5
1%
Oct 21
A vulnerability in the OSPF Version 2 (OSPFv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an…
Affected: before 6.3.0.6; 6.4.0 before 6.4.0.10; 6.5.0 before 6.5.0.5; 6.6.0 before 6.6.1
CVE-2020-3317
7.5
1%
Oct 21
A vulnerability in the ssl_inspection component of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to crash Snort instances
Affected: before 6.4.0.10; 6.5.0 before 6.5.0.5
CVE-2020-3306
7.5
1%
May 6
A vulnerability in the DHCP module of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote…
Affected: before 6.3.0.5; 6.4.0 before 6.4.0.4
CVE-2020-3305
7.5
1%
May 6
A vulnerability in the implementation of the Border Gateway Protocol (BGP) module in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD)…
Affected: before 6.3.0.5; 6.4.0 before 6.4.0.6
CVE-2020-3303
7.5
1%
May 6
A vulnerability in the Internet Key Exchange version 1 (IKEv1) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could…
Affected: before 6.3.0.5; 6.4.0 before 6.4.0.6
CVE-2020-3298
7.5
2%
May 6
A vulnerability in the Open Shortest Path First (OSPF) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could…
Affected: 6.2.0 before 6.2.3.16; 6.3.0 before 6.3.0.6; 6.4.0 before 6.4.0.9; 6.5.0 before 6.5.0.5
CVE-2020-3255
7.5
2%
May 6
A vulnerability in the packet processing functionality of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of…
Affected: 6.2.3 before 6.2.3.16; 6.3.0 before 6.3.0.6; 6.4.0 before 6.4.0.9
CVE-2020-3254
7.5
2%
May 6
Multiple vulnerabilities in the Media Gateway Control Protocol (MGCP) inspection feature of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD)…
Affected: 6.2.3 before 6.2.3.16; 6.3.0 before 6.3.0.6; 6.4.0 before 6.4.0.4
CVE-2020-3195
7.5
2%
May 6
A vulnerability in the Open Shortest Path First (OSPF) implementation in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could…
Affected: 6.4.0 before 6.4.0.9; 6.5.0 before 6.5.0.5
CVE-2020-3179
7.5
2%
May 6
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 before 6.3.0.5; 6.4.0 before 6.4.0.6
CVE-2019-12698
7.5
2%
Oct 2
A vulnerability in the WebVPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote…
Affected: before 6.2.3.15; 6.3.0 before 6.3.0.5; 6.4.0 before 6.4.0.6
CVE-2019-12678
7.5
2%
Oct 2
A vulnerability in the Session Initiation Protocol (SIP) inspection module of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software…
Affected: before 6.2.3.15; 6.3.0 before 6.3.0.4; 6.4.0 before 6.4.0.4
CVE-2019-12673
7.5
2%
Oct 2
A vulnerability in the FTP inspection engine of Cisco Adaptive Security (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote…
Affected: before 6.3.0.5; 6.4.0 before 6.4.0.4
CVE-2019-12627
7.5
1%
Aug 21
A vulnerability in the application policy configuration of the Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to gain unauthorized…
Affected: before 6.4.0.4
CVE-2019-1970
7.5
1%
Aug 8
A vulnerability in the Secure Sockets Layer (SSL)/Transport Layer Security (TLS) protocol inspection engine of Cisco Firepower Threat Defense (FTD) Software could allow an…
Affected: before 6.4.1
CVE-2019-1715
7.5
2%
May 3
A vulnerability in the Deterministic Random Bit Generator (DRBG), also known as Pseudorandom Number Generator (PRNG), used in Cisco Adaptive Security Appliance (ASA) Software and…
Affected: 6.2.1 before 6.2.3.12; 6.3.0 before 6.3.0.3
CVE-2019-1704
7.5
2%
May 3
Multiple vulnerabilities in the Server Message Block (SMB) Protocol preprocessor detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated,…
Affected: 6.0.0 before 6.2.3.12
CVE-2019-1697
7.5
2%
May 3
A vulnerability in the implementation of the Lightweight Directory Access Protocol (LDAP) feature in Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense…
Affected: before 6.2.3.12; 6.3.0 before 6.3.0.3
CVE-2019-1687
7.5
3%
May 3
A vulnerability in the TCP proxy functionality for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an…
Affected: 6.0.0 before 6.2.3.12; 6.3.0 before 6.3.0.3
CVE-2018-15462
7.5
2%
May 3
A vulnerability in the TCP ingress handler for the data interfaces that are configured with management access to Cisco Firepower Threat Defense (FTD) Software could allow an…
Affected: before 6.2.3.12; 6.3.0 before 6.3.0.3
CVE-2018-15383
7.5
2%
Oct 5
A vulnerability in the cryptographic hardware accelerator driver of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow…
Affected: 6.0.1; 6.1.0; 6.2.0; 6.2.2; 6.2.3
CVE-2018-0227
7.5
2%
Apr 19
A vulnerability in the Secure Sockets Layer (SSL) Virtual Private Network (VPN) Client Certificate Authentication feature for Cisco Adaptive Security Appliance (ASA) could allow…
Affected: 6.0 through 6.0.1.4; 6.1.0 through 6.1.0.5
CVE-2017-6632
7.5
2%
May 22
A vulnerability in the logging configuration of Secure Sockets Layer (SSL) policies for Cisco FirePOWER System Software 5.3.0 through 6.2.2 could allow an unauthenticated, remote…
Affected: 5.3.0; 5.4.0; 6.0.0; 6.0.1; 6.0.1.3; 6.1.0; +4 more
CVE-2022-20742
7.4
0%
May 3
A vulnerability in an IPsec VPN library of Cisco Adaptive Security Appliance (ASA) Software and Cisco 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-2020-3577
7.4
0%
Oct 21
A vulnerability in the ingress packet processing path of Cisco Firepower Threat Defense (FTD) Software for interfaces that are configured either as Inline Pair or in Passive mode…
Affected: before 6.3.0.6; 6.4.0 before 6.4.0.10; 6.5.0 before 6.5.0.5; 6.6.0 before 6.6.1
CVE-2020-3334
7.4
0%
May 6
A vulnerability in the ARP packet processing of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series…
Affected: before 6.6.0
CVE-2019-12676
7.4
1%
Oct 2
A vulnerability in the Open Shortest Path First (OSPF) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could…
Affected: before 6.3.0.4; 6.4.0 before 6.4.0.4
CVE-2019-1696
7.4
2%
May 3
Multiple vulnerabilities in the Server Message Block (SMB) Protocol preprocessor detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated,…
Affected: 6.0.0 before 6.2.3.12
CVE-2019-15992
7.2
4%
Sep 23
A vulnerability in the implementation of the Lua interpreter integrated in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could…
Affected: All versions, or not specified
CVE-2021-1493
7.1
1%
Apr 29
A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated,…
Affected: before 6.4.0.12; 6.5.0 before 6.6.3; 6.7.0 before 6.7.0.1
CVE-2017-6625
7.1
2%
May 3
A "Cisco Firepower Threat Defense 6.0.0 through 6.2.2 and Cisco ASA with FirePOWER Module Denial of Service" vulnerability in the access control policy of Cisco Firepower System…
Affected: 6.0.0; 6.0.1; 6.1.0; 6.1.0.2; 6.2.0; 6.2.1; +1 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 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-2026-20050
6.8
0%
Mar 4
Cisco Secure Firewall Threat Defense Decryption Policy Denial of Service Vulnerability
Affected: 7.1.0 before 7.2.11; 7.3.0 before 7.4.4; 7.6.0 before 7.6.4; 7.7.0 before 7.7.11
CVE-2022-20826
6.8
0%
Nov 15
A vulnerability in the secure boot implementation of Cisco Secure Firewalls 3100 Series that are running Cisco Adaptive Security Appliance (ASA) Software or Cisco Firepower Threat…
Affected: 7.1.0.0; 7.2.0.0; 7.2.0.1
CVE-2018-15399
6.8
2%
Oct 5
A vulnerability in the TCP syslog module of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated,…
Affected: 6.2.0
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