Cisco Secure Firewall Threat Defense vulnerabilities

CVE-2019-1669 [HIGH] CWE-693 CVE-2019-1669: A vulnerability in the data acquisition (DAQ) component of Cisco Firepower Threat Defense (FTD) Soft A vulnerability in the data acquisition (DAQ) component of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured access control policies or cause a denial of service (DoS) condition. The vulnerability exists because the affected software improperly manages system memory resources when inspecti

CVE-2023-20042 [HIGH] CWE-404 CVE-2023-20042: A vulnerability in the AnyConnect SSL VPN feature of Cisco Adaptive Security Appliance (ASA) Softwar A vulnerability in the AnyConnect SSL VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower 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 an implementation error within the SSL/TLS session handl

CVE-2021-34793 [HIGH] CWE-924 CVE-2021-34793: A vulnerability in the TCP Normalizer of Cisco Adaptive Security Appliance (ASA) Software and Firepo A vulnerability in the TCP Normalizer of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software operating in transparent mode could allow an unauthenticated, remote attacker to poison MAC address tables, resulting in a denial of service (DoS) vulnerability. This vulnerability is due to incorrect handling of certai

CVE-2024-20412 [HIGH] CWE-259 CVE-2024-20412: A vulnerability in Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 1000, 2100, 310 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 system using static credentials. This vulnerability is due to the presence of static accounts with hard-coded passwords on an affected system. An attacker could expl

CVE-2021-34754 [HIGH] CWE-284 CVE-2021-34754: Multiple vulnerabilities in the payload inspection for Ethernet Industrial Protocol (ENIP) traffic f Multiple vulnerabilities in the payload inspection for Ethernet Industrial Protocol (ENIP) traffic for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured rules for ENIP traffic. These vulnerabilities are due to incomplete processing during deep packet inspection for ENIP packets. An attac

CVE-2022-20730 [HIGH] CWE-241 CVE-2022-20730: A vulnerability in the Security Intelligence feed feature of Cisco Firepower Threat Defense (FTD) So 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 Intelligence DNS feed. This vulnerability is due to incorrect feed update processing. An attacker could exploit this vulnerability by sending traffic through an affected devic

CVE-2020-3189 [HIGH] CWE-400 CVE-2020-3189: A vulnerability in the VPN System Logging functionality for Cisco Firepower Threat Defense (FTD) Sof A vulnerability in the VPN System Logging functionality for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a memory leak that can deplete system memory over time, which can cause unexpected system behaviors or device crashes. The vulnerability is due to the system memory not being properly freed fo

CVE-2020-3563 [HIGH] CWE-400 CVE-2020-3563: A vulnerability in the packet processing functionality of Cisco Firepower Threat Defense (FTD) Softw 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 service (DoS) condition on an affected device. The vulnerability is due to inefficient memory management. An attacker could exploit this vulnerability by sending a large number of TC

CVE-2020-3571 [HIGH] CWE-400 CVE-2020-3571: A vulnerability in the ICMP ingress packet processing of Cisco Firepower Threat Defense (FTD) Softwa A vulnerability in the ICMP ingress packet processing of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 4110 appliances could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incomplete input validation upon receiving ICMP packets. An attacker cou

CVE-2019-1715 [HIGH] CWE-332 CVE-2019-1715: A vulnerability in the Deterministic Random Bit Generator (DRBG), also known as Pseudorandom Number 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 Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a cryptographic collision, enabling the attacker to discover the private k

CVE-2020-3167 [HIGH] CWE-78 CVE-2020-3167: A vulnerability in the CLI of Cisco FXOS Software and Cisco UCS Manager Software could allow an auth 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 operating system (OS). The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by including crafted arguments to specific commands. A

CVE-2019-12627 [HIGH] CWE-284 CVE-2019-12627: A vulnerability in the application policy configuration of the Cisco Firepower Threat Defense (FTD) A vulnerability in the application policy configuration of the Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to gain unauthorized read access to sensitive data. The vulnerability is due to insufficient application identification. An attacker could exploit this vulnerability by sending crafted traffic to a

CVE-2023-20107 [HIGH] CWE-332 CVE-2023-20107: A vulnerability in the deterministic random bit generator (DRBG), also known as pseudorandom number 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 Firepower Threat Defense (FTD) Software for Cisco ASA 5506-X, ASA 5508-X, and ASA 5516-X Firewalls could allow an unauthenticated, remote attacker to cause a cryptographic co

CVE-2018-0227 [HIGH] CWE-295 CVE-2018-0227: A vulnerability in the Secure Sockets Layer (SSL) Virtual Private Network (VPN) Client Certificate A A vulnerability in the Secure Sockets Layer (SSL) Virtual Private Network (VPN) Client Certificate Authentication feature for Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to establish an SSL VPN connection and bypass certain SSL certificate verification steps. The vulnerability is due to incorrect verification

CVE-2019-1970 [HIGH] CWE-693 CVE-2019-1970: A vulnerability in the Secure Sockets Layer (SSL)/Transport Layer Security (TLS) protocol inspection 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 unauthenticated, remote attacker to bypass the configured file policies on an affected system. The vulnerability is due to errors when handling specific SSL/TLS messages. An attacker

CVE-2022-20685 [HIGH] CWE-190 CVE-2022-20685: A vulnerability in the Modbus preprocessor of the Snort detection engine could allow an unauthentica 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 device. This vulnerability is due to an integer overflow while processing Modbus traffic. An attacker could exploit this vulnerability by sending crafted Modbus traffic thr

CVE-2024-20268 [HIGH] CWE-231 CVE-2024-20268: A vulnerability in the Simple Network Management Protocol (SNMP) feature of Cisco Adaptive Security A vulnerability in the Simple Network Management Protocol (SNMP) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause an unexpected reload of the device. This vulnerability is due to insufficient input validation of SNMP packets. An attacker

CVE-2021-1448 [HIGH] CWE-20 CVE-2021-1448: A vulnerability in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authentic 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 underlying operating system of an affected device that is running in multi-instance mode. This vulnerability is due to insufficient validation of user-supplied command arguments

CVE-2026-20105 [HIGH] CWE-401 CVE-2026-20105: A vulnerability in the Remote Access SSL VPN functionality of Cisco Secure Firewall Adaptive Securit 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 authenticated, remote attacker with a valid VPN connection to exhaust device memory resulting in a denial of service (DoS) condition.This does not affect the man

CVE-2026-20100 [HIGH] CWE-120 CVE-2026-20100: A vulnerability in the LUA interperter of the Remote Access SSL VPN feature of Cisco Secure Firewall 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 unexpectedly, resulting in a denial of service (DoS) co