Cisco Secure Firewall Threat Defense vulnerabilities

CVE-2022-20746 [HIGH] CWE-476 CVE-2022-20746: A vulnerability in the TCP proxy functionality of Cisco Firepower Threat Defense (FTD) Software coul 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 (DoS) condition. This vulnerability is due to improper handling of TCP flows. An attacker could exploit this vulnerability by sending a crafted stream of TCP traffic through an a

CVE-2025-20127 [HIGH] CWE-404 CVE-2025-20127: A vulnerability in the TLS 1.3 implementation for a specific cipher for Cisco Secure Firewall Adapti 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 (FTD) Software for Cisco Firepower 3100 and 4200 Series devices could allow an authenticated, remote attacker to consume resources that are associated with incoming TLS 1.3 co

CVE-2022-20729 [HIGH] CWE-91 CVE-2022-20729: A vulnerability in CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated A vulnerability in CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to inject XML into the command parser. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by including crafted input in commands. A successful exploit could allow the attacker to inje

CVE-2023-20006 [HIGH] CWE-681 CVE-2023-20006: A vulnerability in the hardware-based SSL/TLS cryptography functionality of Cisco Adaptive Security 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 Cisco Firepower 2100 Series Appliances could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (Do

CVE-2019-12674 [HIGH] CWE-216 CVE-2019-12674: Multiple vulnerabilities in the multi-instance feature of Cisco Firepower Threat Defense (FTD) Softw 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 their FTD instance and execute commands with root privileges in the host namespace. These vulnerabilities are due to insufficient protections on the underlying filesystem. An a

CVE-2017-6632 [HIGH] CWE-399 CVE-2017-6632: A vulnerability in the logging configuration of Secure Sockets Layer (SSL) policies for Cisco FirePO 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 attacker to cause a denial of service (DoS) condition due to high consumption of system resources. The vulnerability is due to the logging of certain TCP packets by the affecte

CVE-2019-1704 [HIGH] CWE-400 CVE-2019-1704: Multiple vulnerabilities in the Server Message Block (SMB) Protocol preprocessor detection engine fo Multiple vulnerabilities in the Server Message Block (SMB) Protocol preprocessor detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, adjacent or remote attacker to cause a denial of service (DoS) condition. For more information about these vulnerabilities, see the Details section of this advisory.

CVE-2019-12678 [HIGH] CWE-191 CVE-2019-12678: A vulnerability in the Session Initiation Protocol (SIP) inspection module of Cisco Adaptive Securit A vulnerability in the Session Initiation Protocol (SIP) inspection module 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. The vulnerability is due to improper parsing of SIP messages

CVE-2020-3528 [HIGH] CWE-400 CVE-2020-3528: A vulnerability in the OSPF Version 2 (OSPFv2) implementation of Cisco Adaptive Security Appliance ( 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 unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to incomplete input validatio

CVE-2021-34792 [HIGH] CWE-400 CVE-2021-34792: A vulnerability in the memory management of Cisco Adaptive Security Appliance (ASA) Software and Fir A vulnerability in the memory management of Cisco Adaptive Security Appliance (ASA) Software and 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 improper resource management when connection rates are high. An attacke

CVE-2022-20751 [HIGH] CWE-770 CVE-2022-20751: A vulnerability in the Snort detection engine integration for Cisco Firepower Threat Defense (FTD) S A vulnerability in the Snort detection engine integration for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause unlimited memory consumption, which could lead to a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient memory management for certain Snort e

CVE-2021-1501 [HIGH] CWE-613 CVE-2021-1501: A vulnerability in the SIP inspection engine of Cisco Adaptive Security Appliance (ASA) Software and 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, remote attacker to cause a crash and reload of an affected device, resulting in a denial of service (DoS) condition.The vulnerability is due to a crash that occurs during a has

CVE-2022-20757 [HIGH] CWE-770 CVE-2022-20757: A vulnerability in the connection handling function in Cisco Firepower Threat Defense (FTD) Software 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 (DoS) condition on an affected device. This vulnerability is due to improper traffic handling when platform limits are reached. An attacker could exploit this vulnerability by

CVE-2020-3306 [HIGH] CWE-400 CVE-2020-3306: A vulnerability in the DHCP module of Cisco Adaptive Security Appliance (ASA) Software and Cisco Fir 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 attacker to cause a denial of service (DoS) condition on the affected device. The vulnerability is due to incorrect processing of certain DHCP packets. An attacker could exploit t

CVE-2020-3305 [HIGH] CWE-400 CVE-2020-3305: A vulnerability in the implementation of the Border Gateway Protocol (BGP) module in Cisco Adaptive 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) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain BGP packets. An at

CVE-2020-3317 [HIGH] CWE-20 CVE-2020-3317: A vulnerability in the ssl_inspection component of Cisco Firepower Threat Defense (FTD) Software cou A vulnerability in the ssl_inspection component of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to crash Snort instances. The vulnerability is due to insufficient input validation in the ssl_inspection component. An attacker could exploit this vulnerability by sending a malformed TLS packet through a Cisco

CVE-2022-20946 [HIGH] CWE-122 CVE-2022-20946: A vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of Cisco Fir A vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature 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. This vulnerability is due to a memory handling error that occurs when GRE traffic is processed. An a

CVE-2022-20854 [HIGH] CWE-400 CVE-2022-20854: A vulnerability in the processing of SSH connections of Cisco Firepower Management Center (FMC) and 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, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper error handling when an SSH session fails to be establi

CVE-2022-20795 [HIGH] CWE-345 CVE-2022-20795: A vulnerability in the implementation of the Datagram TLS (DTLS) protocol in Cisco Adaptive Security 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 could allow an unauthenticated, remote attacker to cause high CPU utilization, resulting in a denial of service (DoS) condition. This vulnerability is due to suboptimal processi

CVE-2018-0453 [HIGH] CWE-264 CVE-2018-0453: A vulnerability in the Sourcefire tunnel control channel protocol in Cisco Firepower System Software 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 authenticated, local attacker to execute specific CLI commands with root privileges on the Cisco Firepower Management Center (FMC), or through Cisco FMC on other Firepower sensors and