CVE-2026-20135

A vulnerability in the TLS 1.3 implementation in Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service DoS condition. This vulnerability is due to improper buffer...

EUVD-2026-81150

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...

CVE-2026-20290

CVE-2026-20290 affects the Snort 2 Detection Engine within Cisco Secure Firewall Threat Defense (FTD) Software . The root cause is incomplete validation of SSL certificates during parsing. An unauthenticated, remote attacker can exploit this by sending a crafted SSL connection setup request, caus...

CVE-2026-20290 Cisco Secure Firewall Threat Defense Software Snort 2 SSL/TLS Denial of Service Vulnerability

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...

CVE-2026-20135 Cisco Secure Firewall Threat Defense Software TLS 1.3 Denial of Service Vulnerability

A vulnerability in the TLS 1.3 implementation in Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service DoS condition. This vulnerability is due to improper buffer...

EUVD-2026-81123

A vulnerability in the TLS 1.3 implementation in Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service DoS condition. This vulnerability is due to improper buffer...

CVE-2026-20135

Cisco Secure Firewall Threat Defense (FTD) Software is vulnerable to a denial of service (DoS) via its TLS 1.3 implementation . The root cause is improper buffer management during TLS 1.3 connections. An unauthenticated, remote attacker can trigger a DoS by sending a crafted TLS 1.3 packet to a T...

CVE-2026-20064

CVE-2026-20064 affects Cisco Secure Firewall Threat Defense (FTD) Software. The issue stems from improper validation of user-supplied input, enabling an authenticated, local attacker to inject crafted CLI commands and cause the device to reload, resulting in a DoS. The vulnerability is categorize...

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-2026-20050

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-2026-20105

A vulnerability in the Remote Access SSL VPN functionality of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Secure Firewall Threat Defense FTD Software could allow an authenticated, remote attacker with a valid VPN connection to exhaust device memory resulting in a denial of...

Cisco Secure Firewall Threat Defense Software TLS with Snort 3 Detection Engine Denial of Service Vulnerability

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...

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

Multiple vulnerabilities in the CLI feature of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an authenticated, local attacker to cause a device to execute commands with elevated privileges or reload unexpectedly,...

Cisco IOS XE和Cisco Secure Firewall Threat Defense 数字错误漏洞

Cisco IOS XE and Cisco Secure Firewall Threat Defense are both products of the American company Cisco. Cisco IOS XE is an operating system. It serves as a single operating system for enterprise wired and wireless access, aggregation, core, and WAN operations. Cisco IOS XE reduces the complexity o...

PT-2026-22981

A vulnerability in the Remote Access SSL VPN functionality of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to exhaust device memory resulting in a denial of service DoS condition to n...

Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 环境问题漏洞

Cisco Secure Firewall Adaptive Security Appliance and Cisco Secure Firewall Threat Defense are products of Cisco, a US company. Cisco Secure Firewall Adaptive Security Appliance is an enterprise-level firewall software. Cisco Secure Firewall Threat Defense is an integrated firewall platform. Both...

Cisco Secure Firewall Threat Defense 安全漏洞

Cisco Secure Firewall Threat Defense is an integrated firewall platform developed by the American company Cisco. There is a security vulnerability present in Cisco Secure Firewall Threat Defense, which stems from insufficient validation of command parameters provided by users. This vulnerability...

PT-2026-23042

Name of the Vulnerable Software and Affected Versions Cisco Secure Firewall ASA Software and Cisco Secure FTD Software affected versions not specified Description A flaw exists in the OSPF protocol that may allow an authenticated, adjacent attacker to cause an unexpected reload of the device,...

Cisco Secure Firewall Threat Defense 安全漏洞

Cisco Secure Firewall Threat Defense is an integrated firewall platform developed by the American company Cisco. There is a security vulnerability present in Cisco Secure Firewall Threat Defense. This vulnerability stems from improper memory management when checking TLS 1.2 encrypted traffic. It...

Cisco IOS XE和Cisco Secure Firewall Threat Defense 安全漏洞

Cisco IOS XE and Cisco Secure Firewall Threat Defense are both products of the American company Cisco. Cisco IOS XE is an operating system. It serves as a single operating system for enterprise wired and wireless access, aggregation, core, and WAN operations. Cisco IOS XE reduces the complexity o...