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-2026-9417

A vulnerability in the client isolation mechanism may allow an attacker to bypass Layer 2 L2 communication restrictions between clients and redirect traffic at Layer 3 L3. In addition to bypassing policy enforcement, successful exploitation - when combined with a port-stealing attack - may enable...

Traefik: tcp router clears read deadlines before tls forwarding, enabling stalled handshakes (Slowloris DOS)

Impact There is a potential vulnerability in Traefik managing TLS handshake on TCP routers. When Traefik processes a TLS connection on a TCP router, the read deadline used to bound protocol sniffing is cleared before the TLS handshake is completed. When a TLS handshake read error occurs, the code...

CVE-2026-20006

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...

CVE-2026-20052 Cisco Secure Firewall Threat Defense Software Snort 3 Memory Management Denial of Service Vulnerability

A vulnerability in the memory management handling for 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 restart. This vulnerability is due to a logic error in memory management...

CVE-2026-20052

CVE-2026-20052 affects Cisco Secure Firewall Threat Defense (FTD) when Snort 3 Detection Engine handles SSL packet inspection. A logic error in memory management could be triggered by an unauthenticated remote attacker sending crafted SSL packets over the network, potentially causing the Snort 3 ...

CVE-2026-20052

A vulnerability in the memory management handling for 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 restart. This vulnerability is due to a logic error in memory management...

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

The CVE-2026-20050 affects Cisco Secure Firewall Threat Defense (FTD) Software, specifically the Do Not Decrypt exclusion feature in the SSL decryption function. The issue arises from improper memory management when inspecting TLS 1.2 encrypted traffic, allowing an unauthenticated, remote attacke...

CVE-2026-20006

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...

CVE-2026-20006 Cisco Firepower Threat Defense Software and Cisco FirePOWER Services TLS with Snort 3 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...

CVE-2026-20006 Cisco Firepower Threat Defense Software and Cisco FirePOWER Services TLS with Snort 3 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...

CVE-2026-20006

CVE-2026-20006 concerns Cisco Secure Firewall Threat Defense software. It reports a vulnerability in the TLS cryptography functionality of Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Engine to restart, resulting in a denial of service. The is...

CVE-2026-20106

A vulnerability in the Remote Access SSL VPN, HTTP management and MUS 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...

CVE-2026-23811

A vulnerability in the client isolation mechanism may allow an attacker to bypass Layer 2 L2 communication restrictions between clients and redirect traffic at Layer 3 L3. In addition to bypassing policy enforcement, successful exploitation - when combined with a port-stealing attack - may enable...

CVE-2026-23811

A vulnerability in the client isolation mechanism may allow an attacker to bypass Layer 2 L2 communication restrictions between clients and redirect traffic at Layer 3 L3. In addition to bypassing policy enforcement, successful exploitation - when combined with a port-stealing attack - may enable...

CVE-2026-20005

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to incomplete parsing of the...

CVE-2026-20005

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to incomplete parsing of the...

CVE-2026-23811 Unauthorized Bi-Directional Traffic Interception via L2/L3 Manipulation

A vulnerability in the client isolation mechanism may allow an attacker to bypass Layer 2 L2 communication restrictions between clients and redirect traffic at Layer 3 L3. In addition to bypassing policy enforcement, successful exploitation - when combined with a port-stealing attack - may enable...

CVE-2026-23811

A vulnerability in the client isolation mechanism may allow an attacker to bypass Layer 2 L2 communication restrictions between clients and redirect traffic at Layer 3 L3. In addition to bypassing policy enforcement, successful exploitation - when combined with a port-stealing attack - may enable...