CVE-2026-20005

Cisco reports that multiple Cisco products using Snort 3 Detection Engine are affected by a vulnerability stemming from incomplete parsing of SSL handshake ingress packets. An unauthenticated, remote attacker can exploit crafted SSL handshake packets to cause the Snort 3 Detection Engine to resta...

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-2026-20005

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...

Multiple Cisco Products Snort 3 Denial of Service Vulnerabilities

Multiple Cisco products are affected by vulnerabilities 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. For more information about these vulnerabilities, see t...

Cisco Secure Firewall Threat Defense Software Snort Deep Inspection Bypass Vulnerability

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...

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...

Multiple Cisco Products Snort 3 Visual Basic for Applications Denial of Service Vulnerabilities

Multiple Cisco products are affected by vulnerabilities in the Snort 3 Visual Basic for Applications VBA Decompression Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to unexpectedly restart, resulting in a denial of service DoS condition. For mor...

Cisco Secure Firewall Threat Defense Software Snort 3 SSL 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...

Cisco Secure Firewall Threat Defense和Cisco IOS XE Software 资源管理错误漏洞

Cisco Secure Firewall Threat Defense and Cisco IOS XE Software are both products of the American company Cisco. Cisco Secure Firewall Threat Defense is an integrated firewall platform. Cisco IOS XE Software is a network operating system. Both Cisco Secure Firewall Threat Defense and Cisco IOS XE...

PT-2026-23010

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...

PT-2026-23017

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...

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-2026-22968

Name of the Vulnerable Software and Affected Versions Cisco Snort 3 Detection Engine affected versions not specified Description A flaw exists in the Snort 3 Detection Engine that may allow a remote, unauthenticated attacker to disrupt packet inspection. This is caused by the incomplete parsing o...

PT-2026-23018

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 range checking when decompressing VBA data, which is user controlled. An...

PT-2026-23019

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...

PT-2026-23009

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...

PT-2026-23025

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 error checking...

PT-2026-23021

Name of the Vulnerable Software and Affected Versions Cisco products affected versions not specified Description Multiple Cisco products contain flaws in the Snort 3 VBA feature. The issue stems from improper error checking during the decompression of VBA data. An unauthenticated remote attacker...

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...