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-2026-93963

Name of the Vulnerable Software and Affected Versions Cisco Secure Firewall Management Center FMC Software affected versions not specified Description A flaw in the External Database Access feature allows an unauthenticated remote attacker to execute arbitrary commands with root privileges. The...

PT-2026-93989

Name of the Vulnerable Software and Affected Versions Cisco Secure Adaptive Security Appliance Software affected versions not specified Cisco Secure Firewall Threat Defense Software affected versions not specified Cisco Secure Firewall Management Center Software affected versions not specified...

PT-2026-93966

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 certification authentication...

CVE-2026-20333: Incorrect Comparison

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Adaptive Security Appliance Software, Cisco Secure Firewall Threat Defense Software and Cisco Secure Firewall Management Center Software engineering team has conducted a comprehensive internal securi...

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-2026-93974

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-2026-93987

Name of the Vulnerable Software and Affected Versions Cisco Secure Adaptive Security Appliance Software affected versions not specified Cisco Secure Firewall Threat Defense Software affected versions not specified Cisco Secure Firewall Management Center Software affected versions not specified...

PT-2026-93983

Name of the Vulnerable Software and Affected Versions Cisco Secure Adaptive Security Appliance Software affected versions not specified Cisco Secure Firewall Threat Defense Software affected versions not specified Cisco Secure Firewall Management Center Software affected versions not specified...

PT-2026-93984

Name of the Vulnerable Software and Affected Versions Cisco Secure Adaptive Security Appliance Software affected versions not specified Cisco Secure Firewall Threat Defense Software affected versions not specified Cisco Secure Firewall Management Center Software affected versions not specified...

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-2026-93955

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-2026-93988

Name of the Vulnerable Software and Affected Versions Cisco Secure Adaptive Security Appliance Software affected versions not specified Cisco Secure Firewall Threat Defense Software affected versions not specified Cisco Secure Firewall Management Center Software affected versions not specified...

PT-2026-93985

Name of the Vulnerable Software and Affected Versions Cisco Secure Adaptive Security Appliance Software affected versions not specified Cisco Secure Firewall Threat Defense Software affected versions not specified Cisco Secure Firewall Management Center Software affected versions not specified...

Cisco Advance Notification for Publication of September 16, 2026, Security Advisories

On September 16, 2026, the Cisco Product Security Incident Response Team PSIRT published the advisories that are listed in the following tables. To remediate these vulnerabilities, Cisco strongly recommends that customers upgrade to the fixed software that is indicated in the advisories. For more...

Cisco Secure Firewall Management Center Authentication Bypass / Remote Code Execution

Cisco Secure Firewall Management Center contains an authentication bypass vulnerability that can allow an unauthenticated remote attacker to access a startup-created machine session and ultimately execute code as root. This proof of concept implements the publicly documented attack chain, includi...

Cisco Advance Notification for Publication of August 19, 2026, Security Advisories

On August 19, 2026, the Cisco Product Security Incident Response Team PSIRT published the following advisories: Cisco Security Advisory CVE ID Security Impact Rating CVSS Base Score Cisco Crosswork Security Hardening Release: August 2026...

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...

EUVD-2026-56643

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: Improper Clearing of Heap Memory Before Release

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...