CVE-2025-20222 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Buffer Vulnerability

A vulnerability in the RADIUS proxy feature for the IPsec VPN feature of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition. This...

CVE-2025-20222 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Buffer Vulnerability

A vulnerability in the RADIUS proxy feature for the IPsec VPN feature of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition. This...

CVE-2025-20219

CVE-2025-20219 describes an access control bypass vulnerability in Cisco Secure Firewall ASA and FTD software. The issue stems from improper enforcement of loopback interface access control rules, allowing an unauthenticated, remote attacker to send traffic that should be blocked to a loopback in...

CVE-2025-20219 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Access Control Bypass Vulnerability

A vulnerability in the implementation of access control rules for loopback interfaces in Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to send traffic that should have been block...

CVE-2025-20217 Cisco Firepower Threat Defense Intrusion Detection Denial of Service Vulnerability

A vulnerability in the packet inspection functionality of the Snort 3 Detection Engine 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 incorrect...

CVE-2025-20217

CVE-2025-20217 affects Cisco Secure Firewall Threat Defense Software Snort 3 Detection Engine. A vulnerability in the packet inspection processing allows an unauthenticated, remote attacker to trigger an infinite loop while inspecting traffic, causing a DoS condition. The system watchdog restarts...

CVE-2025-20136 Cisco Adaptive Security Appliance and Firepower Threat Defense Software Network Address Translation DNS Inspection Denial of Service Vulnerability

A vulnerability in the function that performs IPv4 and IPv6 Network Address Translation NAT DNS inspection for Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the device t...

CVE-2025-20136 Cisco Adaptive Security Appliance and Firepower Threat Defense Software Network Address Translation DNS Inspection Denial of Service Vulnerability

A vulnerability in the function that performs IPv4 and IPv6 Network Address Translation NAT DNS inspection for Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the device t...

CVE-2025-20135

The CVE-2025-20135 entry describes a vulnerability in the DHCP client functionality of Cisco Secure Firewall ASA/FTD Software where an unauthenticated, adjacent attacker can exhaust memory via crafted DHCPv4 packets, causing DoS and potential service/system instability. Root cause: improper valid...

CVE-2025-20135 Cisco Adaptive Security Appliance and Firepower Threat Defense Software DHCP Denial of Service Vulnerability

A vulnerability in the DHCP client functionality of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, adjacent attacker to exhaust available memory. This vulnerability is due to improper validation ...

CVE-2025-20135 Cisco Adaptive Security Appliance and Firepower Threat Defense Software DHCP Denial of Service Vulnerability

A vulnerability in the DHCP client functionality of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, adjacent attacker to exhaust available memory. This vulnerability is due to improper validation ...

CVE-2025-20134 Cisco Adaptive Security Appliance and Firepower Threat Defense Software SSL/TLS Certificate Denial of Service Vulnerability

A vulnerability in the certificate processing of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service DoS...

CVE-2025-20134

CVE-2025-20134 affects Cisco Secure Firewall ASA/FTD software. The issue stems from improper parsing of SSL/TLS certificates in the certificate processing stack, which can be triggered by sending crafted DNS packets that match a static NAT rule with DNS inspection enabled. An unauthenticated, rem...

CVE-2025-20127 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software for Firepower 3100 and 4200 Series TLS Cipher Denial of Service Vulnerability

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...

CVE-2025-20127

CVE-2025-20127 affects Cisco Secure Firewall ASA/FTD on Firepower 3100 and 4200 Series. The issue stems from TLS 1.3 cipher TLS_CHACHA20_POLY1305_SHA256, allowing an authenticated, remote attacker to exhaust resources tied to incoming TLS 1.3 connections and potentially deny new SSL/TLS or VPN co...

Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Authenticated Command Injection Vulnerabilities

Multiple vulnerabilities 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 the...

Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Access Control Rules Bypass Vulnerability

A vulnerability in the implementation of access control rules for loopback interfaces in Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to send traffic that should have been block...

Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software SSL/TLS Certificate Denial of Service Vulnerability

A vulnerability in the certificate processing of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service DoS...

Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access VPN Web Server Denial of Service Vulnerability

A vulnerability in the Remote Access SSL VPN service for Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow a remote attacker that is authenticated as a VPN user to cause the device to reload unexpectedly, resulting in ...

Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software for Firepower 3100 and 4200 Series TLS 1.3 Cipher Denial of Service Vulnerability

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...