EUVD-2026-9453

A vulnerability in the TLS cryptography functionality of the Snort 3 Detection Engine of Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to unexpectedly restart, resulting in a denial of service DoS condition...

EUVD-2026-9456

A vulnerability in the sftunnel functionality of Cisco Secure Firewall Management Center FMC Software and Cisco Secure Firewall Threat Defense FTD Software could allow an authenticated, remote attacker with administrative privileges to write arbitrary files as root on the underlying operating...

CVE-2026-20102

A vulnerability in the SAML 2.0 single sign-on SSO feature of Cisco Secure Firewall ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting XSS attack against the SAML feature and access sensitive,...

CVE-2026-20073

A vulnerability 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 be denied through an affected device. This vulnerability is due to improper error...

CVE-2026-20050

A vulnerability in the Do Not Decrypt exclusion feature of the SSL decryption feature 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 improper memory...

CVE-2026-20007

A vulnerability in the Snort 2 and Snort 3 deep packet inspection of Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to bypass configured Snort rules and allow traffic onto the network that should have been dropped. This vulnerability is due to a...

CVE-2026-20008

A vulnerability in a small subset of CLI commands that are used on Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an authenticated, local attacker to craft Lua code that could be used on the underlying operating...

CVE-2026-20073

A vulnerability 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 be denied through an affected device. This vulnerability is due to improper error...

CVE-2026-20073

Cisco Secure Firewall ASA and FTD platforms are affected by CVE-2026-20073 due to improper error handling when a cluster-joining device runs out of memory while replicating access control rules. An unauthenticated remote attacker could send traffic that should be blocked, potentially bypassing AC...

CVE-2026-20102 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software SAML Reflected Cross-Site Scripting Vulnerability

A vulnerability in the SAML 2.0 single sign-on SSO feature of Cisco Secure Firewall ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting XSS attack against the SAML feature and access sensitive,...

CVE-2026-20102

Cisco Secure Firewall ASA and Cisco Secure Firewall Threat Defense (FTD) are affected by CVE-2026-20102, a reflected XSS in the SAML 2.0 SSO feature caused by insufficient input validation of multiple HTTP parameters. An unauthenticated, remote attacker could lure a user to a malicious link to ex...

CVE-2026-20070 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software VPN Web Services Cross-Site Scripting Vulnerability

A vulnerability in the VPN web services component of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting XSS attack against a browser that is accessin...

CVE-2026-20070 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software VPN Web Services Cross-Site Scripting Vulnerability

A vulnerability in the VPN web services component of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting XSS attack against a browser that is accessin...

CVE-2026-20063 Cisco Secure FTD Software Authenticated Command Injection Vulnerability

A vulnerability in the CLI of Cisco Secure FTD Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system as root. To exploit this vulnerability, the attacker must have valid administrative credentials on an affected device. This...

CVE-2026-20057

CVE-2026-20057 affects multiple Cisco products via the Snort 3 VBA feature. The issue stems from lack of proper error checking when decompressing VBA data, enabling an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash and restart, resulting in a DoS (availability imp...

CVE-2026-20057 Cisco Secure Firewall Threat Defense Software Snort 3 Visual Basic for Application Denial of Service Vulnerability

Multiple Cisco products are affected by a vulnerability in the Snort 3 Visual Basic for Applications VBA feature which could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. This vulnerability is due to lack of proper error checking when decompressing VBA...

CVE-2026-20054 Cisco Secure Firewall Threat Defense Software Snort 3 Visual Basic for Application Infinite Loop Denial of Service Vulnerability

Multiple Cisco products are affected by a vulnerability in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. This vulnerability is due to improper error checking when decompressing VBA data. An attacker could exploit this...

CVE-2026-20053

Cisco CVE-2026-20053 affects multiple Cisco products via Snort 3 Visual Basic for Applications (VBA) Decompression Engine. The vulnerability stems from improper range checking when decompressing VBA data, which is user-controlled, enabling an unauthenticated, remote attacker to cause the Snort 3 ...

CVE-2026-20050

A vulnerability in the Do Not Decrypt exclusion feature of the SSL decryption feature 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 improper memory...

CVE-2026-20050 Cisco Secure Firewall Threat Defense Decryption Policy Denial of Service Vulnerability

A vulnerability in the Do Not Decrypt exclusion feature of the SSL decryption feature 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 improper memory...