CVE-2026-20154: Loop with Unreachable Exit Condition

A vulnerability in the system rate-limiting process for syslog message 419002 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 high CPU utilization on an affected device...

CVE-2026-20248: Signed to Unsigned Conversion Error

A vulnerability in the DNS over TCP implementation 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 TCP DNS response handler to unexpectedly restart, causing the...

CVE-2026-20121: Improper Access Control

A vulnerability in the access control list ACL Object Group Search OGS implementation of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to bypass configured access controls. This...

CVE-2026-20290: Buffer Access with Incorrect Length Value

A vulnerability in SSL/TLS certificate parsing in the Snort 2 Detection Engine of Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the Snort 2 Detection Engine to restart. This vulnerability is due to incomplete validation of the SSL...

PT-2026-93960

Name of the Vulnerable Software and Affected Versions Cisco Secure Firewall Adaptive Security Appliance ASA Software affected versions not specified Cisco Secure Firewall Threat Defense FTD Software affected versions not specified Description An issue in the EIGRP implementation allows an...

PT-2026-93952

Name of the Vulnerable Software and Affected Versions Cisco Secure Firewall Adaptive Security Appliance ASA Software affected versions not specified Cisco Secure Firewall Threat Defense FTD Software affected versions not specified Description A logic error in the access control list ACL Object...

PT-2026-94024

Name of the Vulnerable Software and Affected Versions Cisco Secure Firewall Adaptive Security Appliance ASA Software affected versions not specified Cisco Secure Firewall Threat Defense FTD Software affected versions not specified Description A logic error in the access control list ACL Object...

PT-2026-93965

Name of the Vulnerable Software and Affected Versions Cisco Secure Firewall Adaptive Security Appliance ASA Software affected versions not specified Cisco Secure Firewall Threat Defense FTD Software affected versions not specified Description A logic error in the DNS over TCP implementation occur...

PT-2026-93955

Name of the Vulnerable Software and Affected Versions Cisco Secure Firewall Adaptive Security Appliance ASA Software affected versions not specified Cisco Secure Firewall Threat Defense FTD Software affected versions not specified Description An issue in the system rate-limiting process for syslo...

PT-2026-93967

Name of the Vulnerable Software and Affected Versions Cisco Secure Firewall Adaptive Security Appliance ASA Software affected versions not specified Cisco Secure Firewall Threat Defense FTD Software affected versions not specified Description Improper resource management during the handling of...

PT-2026-93979

Name of the Vulnerable Software and Affected Versions Cisco Secure FMC Software affected versions not specified Cisco Secure FTD Software affected versions not specified Description An issue exists in the sftunnel inter-device communication protocol. An unauthenticated, adjacent attacker can...

CVE-2026-20120: Improper Access Control

A vulnerability in the access control list ACL Object Group Search OGS implementation of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to bypass configured access controls. This...

PT-2026-73230

CVE-2026-44772: SAP Manufacturing Integration and Intelligence Code Injection Bug - What It Means for Your Business and How to Respond https://t.co/eP22M1sDxh...

Cisco Firewall Threat Defense (FTD) Software Remote Access SSL VPN DoS (cisco-sa-asaftd-vpn-dos-dzv4mQFF)

According to its self-reported version, the Cisco Secure Firewall Threat Defense FTD Software is affected by a denial of service vulnerability. A flaw exists due to insufficient error checking when processing HTTP requests. An unauthenticated, remote attacker can exploit this issue, via a crafted...

Cisco ASA FTD DoS

The vulnerability of the Remote Access SSL VPN microprogramming network interface device of Cisco Adaptive Security Appliance ASA and Cisco Secure Firewall Threat Defense FTD is related to improper cleaning of dynamic memory. Exploiting this vulnerability allows a malicious actor to cause service...

Vulnerability handling in Cisco Secure Firewall ASA and FTD software

Cisco has identified a vulnerability in Cisco Secure Firewall ASA and FTD software. The vulnerability resides in the heap inspection mechanism within the Remote Access SSL VPN service. It arises due to insufficient error checking during the processing of HTTP requests. An unauthenticated external...

Cisco ASA and FTD Flaw Exploited in the Wild Can Trigger Remote DoS

Cisco has warned that a new vulnerability impacting Secure Firewall Adaptive Security Appliance ASA Software and Secure Firewall Threat Defense FTD Software has been exploited in the wild. The high-severity flaw, tracked as CVE-2026-20349 CVSS score: 8.6, is a case of insufficient error checking...

CVE-2026-20349

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 an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of servic...

CVE-2026-20349 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN 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 an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of servic...

CVE-2026-20349 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN 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 an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of servic...