VendorsCiscoadaptive_security_appliance_softwareany version
Vulnerabilities

Cisco Adaptive Security Appliance any version

Ranked by severity, then by exploit likelihood. Click a CVE ID for its full record.

178CVEs
CVE-2020-3528
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software OSPFv2 Link-Local Signaling Denial of Service Vulnerability
Published 2020-10-21 · Modified
8.6EPSS 0.014
CVE-2021-34792
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Resource Exhaustion Denial of Service Vulnerability
Published 2021-10-27 · Modified
8.6EPSS 0.014
CVE-2021-40118
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Denial of Service Vulnerabilities
Published 2021-10-27 · Modified
8.6EPSS 0.014
CVE-2022-20715
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerability
Published 2022-05-03 · Modified
8.6EPSS 0.013
CVE-2021-1501
Cisco Adaptive Security Appliance Software and Cisco Firepower Threat Defense Software SIP Denial of Service Vulnerability
Published 2021-04-29 · Modified
8.6EPSS 0.013
CVE-2021-34704
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Denial of Service Vulnerability
Published 2022-01-11 · Modified
8.6EPSS 0.013
CVE-2021-1573
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Denial of Service Vulnerability
Published 2022-01-11 · Modified
8.6EPSS 0.013
CVE-2019-1706
Cisco Adaptive Security Appliance Software IPsec Denial of Service Vulnerability
Published 2019-05-03 · Modified
8.6EPSS 0.011
CVE-2021-34793
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Transparent Mode Denial of Service Vulnerability
Published 2021-10-27 · Modified
8.6EPSS 0.006
CVE-2026-20082
A vulnerability in the handling of the embryonic connection limits in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause incoming TCP SYN packets to be dropped incorrectly. This vulnerability is due to improper handling of new, incoming TCP connections that are destined to management or data interfaces when the device is under a TCP SYN flood attack. An attacker could exploit this vulnerability by sending a crafted stream of traffic to an affected device. A successful exploit could allow the attacker to prevent all incoming TCP connections to the device from being established, including remote management access, Remote Access VPN (RAVPN) connections, and all network protocols that are TCP-based. This results in a denial of service (DoS) condition for affected features.
Published 2026-03-04 · Analyzed
8.6EPSS 0.004
CVE-2026-20039
Cisco Adaptive Security Appliance and Firepower Threat Defense Software SSL VPN Authentication Denial of Service Vulnerability
Published 2026-03-04 · Analyzed
8.6EPSS 0.004
CVE-2026-20101
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 the device to reload unexpectedly, resulting in a DoS condition. This vulnerability is due to insufficient error checking when processing SAML messages. An attacker could exploit this vulnerability by sending crafted SAML messages to the SAML service. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Published 2026-03-04 · Analyzed
8.6EPSS 0.004
CVE-2026-20103
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 could allow an unauthenticated, remote attacker to exhaust device memory resulting in a denial of service (DoS) condition to new Remote Access SSL VPN connections. This does not affect the management interface, though it may become temporarily unresponsive. This vulnerability is due to trusting user input without validation. An attacker could exploit this vulnerability by sending crafted packets to the Remote Access SSL VPN server. A successful exploit could allow the attacker to cause the device web interface to stop responding, resulting in a DoS condition.
Published 2026-03-04 · Analyzed
8.6EPSS 0.004
CVE-2021-1493
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Buffer Overflow Denial of Service Vulnerability
Published 2021-04-29 · Modified
8.5EPSS 0.012
CVE-2022-20737
Cisco Adaptive Security Appliance Software Clientless SSL VPN Heap Overflow Vulnerability
Published 2022-05-03 · Modified
8.5EPSS 0.012
CVE-2018-15465
Cisco Adaptive Security Appliance Software Privilege Escalation Vulnerability
Published 2018-12-24 · Modified
8.1EPSS 0.024
CVE-2012-5010
ASA 5515-X Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 9.4.x before 9.4.1 Interim, 9.2.x before 9.2.4 Interim, ASA 5510 Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 8.4.x before 8.4.7 Interim, 8.2.x before 8.2.5 Interim, 9.1.x before 9.1.6 Interim, ASA 5555-X Adaptive Security Appliance ASA for Application Centric Infrastructure (ACI) Device Package 1.2.4.x before 1.2.4.8, ASA 5512-X Adaptive Security Appliance ASA for Application Centric Infrastructure (ACI) Device Package 1.2.4.x before 1.2.4.8, ASA 5520 Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 8.2.x before 8.2.5 Interim, 8.4.x before 8.4.7 Interim, 9.1.x before 9.1.6 Interim, ASA 5505 Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 9.2.x before 9.2.4 Interim, 8.4.x before 8.4.7 Interim, 9.1.x before 9.1.6 Interim, ASA 5525-X Adaptive Security Appliance ASA for Application Centric Infrastructure (ACI) Device Package 1.2.4.x before 1.2.4.8, ASA 5512-X Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 9.4.x before 9.4.1 Interim, 9.2.x before 9.2.4 Interim or 9.2.4.SMP, 9.1.x before 9.1.6 Interim, ASA 5545-X Adaptive Security Appliance ASA for Application Centric Infrastructure (ACI) Device Package 1.2.4.x before 1.2.4.8, ASA 5585-X Adaptive Security Appliance ASA for Application Centric Infrastructure (ACI) Device Package 1.2.4.x before 1.2.4.8, ASA 5540 Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 8.2.x before 8.2.5 Interim, 8.4.x before 8.4.7 Interim, 9.1.x before 9.1.6 Interim, ASA 5515-X Adaptive Security Appliance ASA for Application Centric Infrastructure (ACI) Device Package 1.2.4.x before 1.2.4.8, ASA 5555-X Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 9.2.x before 9.2.4 Interim or 9.2.4.SMP, 9.4.x before 9.4.1 Interim, 9.1.x before 9.1.6 Interim, ASA 5580 Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 9.1.x before 9.1.6 Interim, ASA 5585-X Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 9.2.x before 9.2.4 Interim, 9.4.x before 9.4.1 Interim, ASA 5525-X Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 9.4.x before 9.4.1 Interim, 9.2.x before 9.2.4 Interim or 9.2.4.SMP, 9.1.x before 9.1.6 Interim, ASA 5545-X Adaptive Security Appliance Adaptive Security Appliance (ASA) Software 9.4.x before 9.4.1 Interim, 9.2.x before 9.2.4 Interim or 9.2.4.SMP. 9.1.x before 9.1.6 ASA does not check the source of the ARP request or GARP packets for addresses it performs NAT translation for under unspecified conditions.
Published 2017-06-27 · Modified
8.1EPSS 0.006
CVE-2016-6367
Cisco Adaptive Security Appliance (ASA) Software before 8.4(1) on ASA 5500, ASA 5500-X, PIX, and FWSM devices allows local users to gain privileges via invalid CLI commands, aka Bug ID CSCtu74257 or EPICBANANA.
Published 2016-08-18 · Analyzed
7.8KEV1 PoCEPSS 0.226
CVE-2011-0394
Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 7.0 before 7.0(8.11), 7.1 and 7.2 before 7.2(5.1), 8.0 before 8.0(5.19), 8.1 before 8.1(2.47), 8.2 before 8.2(2.19), and 8.3 before 8.3(1.8); Cisco PIX Security Appliances 500 series devices; and Cisco Firewall Services Module (aka FWSM) 3.1 before 3.1(20), 3.2 before 3.2(20), 4.0 before 4.0(15), and 4.1 before 4.1(5) allow remote attackers to cause a denial of service (device reload) via a malformed Skinny Client Control Protocol (SCCP) message, aka Bug IDs CSCtg69457 and CSCtl84952.
Published 2011-02-25 · Modified
7.8EPSS 0.034
CVE-2010-4670
The Neighbor Discovery (ND) protocol implementation in the IPv6 stack on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.2(3) and earlier, and Cisco PIX Security Appliances devices, allows remote attackers to cause a denial of service (CPU consumption and device hang) by sending many Router Advertisement (RA) messages with different source addresses, as demonstrated by the flood_router6 program in the thc-ipv6 package, aka Bug ID CSCti24526.
Published 2011-01-07 · Modified
7.8EPSS 0.032
CVE-2010-4682
Memory leak on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.2(3) allows remote attackers to cause a denial of service (memory consumption) by making multiple incorrect LDAP authentication attempts, aka Bug ID CSCtf29867.
Published 2011-01-07 · Modified
7.8EPSS 0.029
CVE-2019-1687
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software TCP Proxy Denial of Service Vulnerability
Published 2019-05-03 · Modified
7.8EPSS 0.029
CVE-2007-2463
Unspecified vulnerability in Cisco Adaptive Security Appliance (ASA) and PIX 7.1 before 7.1(2)49 and 7.2 before 7.2(2)17 allows remote attackers to cause a denial of service (device reload) via unknown vectors related to VPN connection termination and password expiry.
Published 2007-05-02 · Modified
7.8EPSS 0.029
CVE-2010-4672
Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.2(3) and earlier allow remote attackers to cause a denial of service (block exhaustion) via EIGRP traffic that triggers an EIGRP multicast storm, aka Bug ID CSCtf20269.
Published 2011-01-07 · Modified
7.8EPSS 0.026
CVE-2010-4674
Unspecified vulnerability on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.2(4) and earlier allows remote attackers to cause a denial of service (block exhaustion) via multicast traffic, aka Bug ID CSCtg63992.
Published 2011-01-07 · Modified
7.8EPSS 0.026
CVE-2010-4691
Unspecified vulnerability on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.3(2) allows remote attackers to cause a denial of service (device crash) via multicast traffic, aka Bug IDs CSCtg61810 and CSCtg69742.
Published 2011-01-07 · Modified
7.8EPSS 0.026
CVE-2010-4692
Unspecified vulnerability on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.3(2) allows remote attackers to cause a denial of service (device crash) via a large number of LAN-to-LAN (aka L2L) IPsec sessions, aka Bug ID CSCth36592.
Published 2011-01-07 · Modified
7.8EPSS 0.026
CVE-2011-0393
Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 7.0 before 7.0(8.12), 7.1 and 7.2 before 7.2(5.2), 8.0 before 8.0(5.21), 8.1 before 8.1(2.49), 8.2 before 8.2(3.6), and 8.3 before 8.3(2.7) and Cisco PIX Security Appliances 500 series devices, when transparent firewall mode is configured but IPv6 is not configured, allow remote attackers to cause a denial of service (packet buffer exhaustion and device outage) via IPv6 traffic, aka Bug ID CSCtj04707.
Published 2011-02-25 · Modified
7.8EPSS 0.026
CVE-2010-4688
Unspecified vulnerability in the SIP inspection feature on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.3(2) allows remote attackers to cause a denial of service (device crash) by making many SIP calls, aka Bug ID CSCte20030.
Published 2011-01-07 · Modified
7.8EPSS 0.026
CVE-2010-4673
Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.2(4) and earlier allow remote attackers to cause a denial of service via a flood of packets, aka Bug ID CSCtg06316.
Published 2011-01-07 · Modified
7.8EPSS 0.026
CVE-2010-4689
Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.3(2) do not properly preserve ACL behavior after a migration, which allows remote attackers to bypass intended access restrictions via an unspecified type of network traffic that had previously been denied, aka Bug ID CSCte46460.
Published 2011-01-07 · Modified
7.8EPSS 0.026
CVE-2019-1697
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Lightweight Directory Access Protocol Denial of Service Vulnerability
Published 2019-05-03 · Modified
7.8EPSS 0.020
CVE-2019-12698
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN CPU Denial of Service Vulnerability
Published 2019-10-02 · Modified
7.8EPSS 0.020
CVE-2020-3555
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SIP Denial of Service Vulnerability
Published 2020-10-21 · Modified
7.8EPSS 0.017
CVE-2020-3303
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv1 Denial of Service Vulnerability
Published 2020-05-06 · Modified
7.8EPSS 0.012
CVE-2020-3305
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software BGP Denial of Service Vulnerability
Published 2020-05-06 · Modified
7.8EPSS 0.012
CVE-2020-3306
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software DHCP Denial of Service Vulnerability
Published 2020-05-06 · Modified
7.8EPSS 0.012
CVE-2010-4679
Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.2(3) do not properly handle Online Certificate Status Protocol (OCSP) connection failures, which allows remote OCSP responders to cause a denial of service (TCP socket exhaustion) by rejecting connection attempts, aka Bug ID CSCsz36816.
Published 2011-01-07 · Modified
7.8EPSS 0.011
CVE-2020-3167
Cisco FXOS and UCS Manager Software CLI Command Injection Vulnerability
Published 2020-02-26 · Modified
7.8EPSS 0.009
CVE-2019-1945
Cisco Adaptive Security Appliance Smart Tunnel Vulnerabilities
Published 2019-08-07 · Modified
7.8EPSS 0.003
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