Cisco ASA/FTD Software - Cross-Site Scripting

Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software are vulnerable to cross-site scripting and could allow an unauthenticated, remote attacker to conduct attacks against a user of the web services interface of an affected device. The vulnerabilities are...

EUVD-2026-81113

A vulnerability in the sftunnel inter-device communication protocol of Cisco Secure FMC Software and Cisco Secure FTD Software could allow an unauthenticated, remote attacker to exhaust the available memory of an affected device. This vulnerability is due to improper management of memory resource...

Cisco ASA/FTD Observable Discrepancy (CVE-2022-20866)

A vulnerability in the handling of RSA keys on devices running Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to retrieve an RSA private key. This vulnerability is due to a logic error when the RSA key...

Cisco Firepower Threat Defense (FTD) Software VPN DoS Vulnerabilities (cisco-sa-asaftd-vpn-m9sx6MbC)

According to its self-reported version, Cisco Secure Firewall Threat Defense FTD Software is affected by multiple vulnerabilities. - A vulnerability in the Lua interpreter of the Remote Access SSL VPN functionality of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure...

CVE-2026-20012

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 Software, and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to trigger a...

CVE-2026-20022

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 device to reload unexpectedly, resulting in a DoS condition when OSPF canonicalization debug is enabled by using the...

CVE-2026-20016

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 arbitrary commands on the underlying operating system with root-level privileges. To exploit this vulnerability, the attack...

CVE-2026-20070

A vulnerability in the VPN web services component of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting XSS attack against a browser that is accessin...

CVE-2026-20106

A vulnerability in the Remote Access SSL VPN, HTTP management and MUS 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...

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 checki...

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 checki...

CVE-2026-20100

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 FTD Software could allow an authenticated, remote attacker with a valid VPN connection to cause the device to reload...

CVE-2026-20020: Improper Input Validation

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 device to reload unexpectedly, resulting in a DoS condition. If OSPF authentication is enabled, the attacker must know th...

CVE-2026-20014: Missing Release of Memory after Effective Lifetime

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 credentials to cause a DoS condition on an affected device that may also impact the availability of services to devices...

CVE-2026-20006: Undefined Security Weakness

A vulnerability in the TLS cryptography functionality of the Snort 3 Detection Engine of Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to unexpectedly restart, resulting in a denial of service DoS condition...

CVE-2026-20024: Improper Restriction of Operations within the Bounds of a Memory Buffer

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 device to reload unexpectedly, resulting in a DoS condition. To exploit this vulnerability, the attacker must have the OSPF...

CVE-2026-20015: Missing Release of Memory after Effective Lifetime

A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device that may impact the availability of services to devices elsewhere in the network. This...

CVE-2026-20013: Missing Release of Memory after Effective Lifetime

A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device that may also impact the availability of services to devices elsewhere in the network. This...

CVE-2026-20050: Improper Resource Shutdown or Release

A vulnerability in the Do Not Decrypt exclusion feature of the SSL decryption feature of Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to improper memory...

CVE-2026-20069: Inconsistent Interpretation of HTTP Requests

A vulnerability in the VPN web services component of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to conduct browser-based attacks against users of an affected device. This...