Cisco Adaptive Security Appliance Software vulnerabilities

CVE-2018-15399 [MEDIUM] CWE-400 CVE-2018-15399: A vulnerability in the TCP syslog module of Cisco Adaptive Security Appliance (ASA) Software and Cis 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, remote attacker to exhaust the 1550-byte buffers on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to a missing boundary check i

CVE-2021-1476 [MEDIUM] CWE-78 CVE-2021-1476: A vulnerability in the CLI of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower T A vulnerability in the CLI of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system (OS) of an affected device. The vulnerability is due to insufficient input validation of commands that are supplied

CVE-2025-20237 [MEDIUM] CWE-146 CVE-2025-20237: A vulnerability in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure A vulnerability in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (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 attacker must have valid administrativ

CVE-2025-20238 [MEDIUM] CWE-1244 CVE-2025-20238: A vulnerability in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure A vulnerability in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (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 attacker must have valid administrati

CVE-2019-12676 [HIGH] CWE-20 CVE-2019-12676: A vulnerability in the Open Shortest Path First (OSPF) implementation of Cisco Adaptive Security App 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 allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability exists because the affe

CVE-2019-1693 [MEDIUM] CWE-399 CVE-2019-1693: A vulnerability in the WebVPN service of Cisco Adaptive Security Appliance (ASA) Software and Cisco A vulnerability in the WebVPN service of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper management of authenticated sessions in the WebVPN portal. An a

CVE-2022-20924 [MEDIUM] CWE-703 CVE-2022-20924: 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 a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation. An

CVE-2024-20485 [MEDIUM] CWE-94 CVE-2024-20485: A vulnerability in the VPN web server of Cisco Adaptive Security Appliance (ASA) Software and Cisco A vulnerability in the VPN web server of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary code with root-level privileges. Administrator-level privileges are required to exploit this vulnerability. This vulnerability is due to improper v

CVE-2023-20256 [MEDIUM] CWE-290 CVE-2023-20256: Multiple vulnerabilities in the per-user-override feature of Cisco Adaptive Security Appliance (ASA) Multiple vulnerabilities in the per-user-override feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured access control list (ACL) and allow traffic that should be denied to flow through an affected device. These vulnerabilit

CVE-2024-20299 [MEDIUM] CWE-290 CVE-2024-20299: A vulnerability in the AnyConnect firewall for Cisco Adaptive Security Appliance (ASA) Software and A vulnerability in the AnyConnect firewall for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured access control list (ACL) and allow traffic that should have been denied to flow through an affected device. This vulnerability is due

CVE-2024-20297 [MEDIUM] CWE-290 CVE-2024-20297: A vulnerability in the AnyConnect firewall for Cisco Adaptive Security Appliance (ASA) Software and A vulnerability in the AnyConnect firewall for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured access control list (ACL) and allow traffic that should have been denied to flow through an affected device. This vulnerability is due

CVE-2020-3334 [HIGH] CWE-399 CVE-2020-3334: A vulnerability in the ARP packet processing of Cisco Adaptive Security Appliance (ASA) Software and 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 Security Appliances could allow an unauthenticated, adjacent attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition on an affected dev

CVE-2019-1944 [HIGH] CWE-20 CVE-2019-1944: Multiple vulnerabilities in the smart tunnel functionality of Cisco Adaptive Security Appliance (ASA Multiple vulnerabilities in the smart tunnel functionality of Cisco Adaptive Security Appliance (ASA) could allow an authenticated, local attacker to elevate privileges to the root user or load a malicious library file while the tunnel is being established. For more information about these vulnerabilities, see the Details section of this security advisor

CVE-2021-40125 [MEDIUM] CWE-416 CVE-2021-40125: A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Secu A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. This vulnerability is due to improper control of a reso

CVE-2020-3457 [MEDIUM] CWE-78 CVE-2020-3457: A vulnerability in the CLI of Cisco FXOS Software could allow an authenticated, local attacker to in A vulnerability in the CLI of Cisco FXOS Software could allow an authenticated, local attacker to inject arbitrary commands that are executed with root privileges. The vulnerability is due to insufficient input validation of commands supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted

CVE-2022-20927 [MEDIUM] CWE-120 CVE-2022-20927: A vulnerability in the SSL/TLS client of Cisco Adaptive Security Appliance (ASA) Software and Cisco A vulnerability in the SSL/TLS client of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper memory management when a device initiates SSL/TLS connection

CVE-2024-20331 [MEDIUM] CWE-330 CVE-2024-20331: A vulnerability in the session authentication functionality of the Remote Access SSL VPN feature of A vulnerability in the session authentication functionality of the Remote Access SSL VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to prevent users from authenticating. This vulnerability is due to insufficient entropy in the authentic

CVE-2022-20928 [MEDIUM] CWE-863 CVE-2022-20928: A vulnerability in the authentication and authorization flows for VPN connections in Cisco Adaptive A vulnerability in the authentication and authorization flows for VPN connections in Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to establish a connection as a different user. This vulnerability is due to a flaw in the authorization verifications during t

CVE-2023-20245 [MEDIUM] CWE-290 CVE-2023-20245: Multiple vulnerabilities in the per-user-override feature of Cisco Adaptive Security Appliance (ASA) Multiple vulnerabilities in the per-user-override feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured access control list (ACL) and allow traffic that should be denied to flow through an affected device. These vulnerabilit

CVE-2024-20384 [MEDIUM] CWE-290 CVE-2024-20384: A vulnerability in the Network Service Group (NSG) feature of Cisco Adaptive Security Appliance (ASA A vulnerability in the Network Service Group (NSG) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured access control list (ACL) and allow traffic that should be denied to flow through an affected device. This vulnerabilit