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

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-2026-23020

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...

PT-2026-23024

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 an error in the JSTokenize...

PT-2026-23023

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 an error in the binder...

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 a memory management logic error during the execution of Snort 3 SSL...

PT-2026-23026

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...

Regular Expression Denial of Service Induced by Backreferences

This paper presents the first systematic study of denial-of-service vulnerabilities in Regular Expressions with Backreferences REwB. We introduce the Two-Phase Memory Automaton 2PMFA, an automaton model that precisely captures REwB semantics. Using this model, we derive necessary conditions under...

The vulnerability of the Snort detection mechanism of Cisco Secure Firewall’s Threat Defense system allows a perpetrator to gain unauthorized access to confidential information.

The vulnerability of the Snort detection mechanism of Cisco Secure Firewall’s Threat Defense system is related to the disclosure of information. Exploiting this vulnerability could allow a malicious actor to gain unauthorized access to confidential information...

The vulnerability of the Snort detection mechanism of Cisco Secure Firewall’s Threat Defense (FTD) allows a perpetrator to trigger a service failure.

The vulnerability of the Snort detection mechanism of Cisco Secure Firewall’s Threat Defense FTD is related to a memory reclamation error. Exploiting this vulnerability could allow an attacker operating remotely to cause a service failure...

PT-2026-7483

Heads up, folks: Microsoft's February 2026 Patch Tuesday is out, dropping 55 vulnerability fixes across various products. Among these is CVE-2025-59498, which Microsoft has explicitly marked as Critical. This update is significant, addressing a broad spectrum of security issues. While the specifi...

Exploit for Out-of-bounds Read in Openssl

CVE-2014-0160 Lab dựng lab sử dụng Heartbleed để leak memory...

Cisco Snort _bnfa_search_csparse_nfa Use-After-Free Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Cisco Snort. Authentication is not required to exploit this vulnerability. The specific flaw exists within the bnfasearchcsparsenfa method. The issue results from the lack of validating the existence...

Cisco Snort _bnfa_search_csparse_nfa Out-Of-Bounds Read Information Disclosure Vulnerability

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Cisco Snort. Authentication is not required to exploit this vulnerability. The specific flaw exists within the bnfasearchcsparsenfa method. The issue results from the lack of proper validatio...

Cisco Firepower Threat Defense Software Snort 3 Detection Engine DoS (cisco-sa-ftd-snort3-uAnUntcV)

According to its self-reported version, Cisco Firepower Threat Defense FTD Software is affected by a vulnerability. - A vulnerability in the TLS 1.3 implementation of the Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection...

Cisco IOS XE Software Unified Threat Defense Snort Intrusion Prevention System Engine Multiple Vulnerabilities (cisco-sa-snort3-dcerpc-vulns-J9HNF4tH)

According to its self-reported version, Cisco IOS-XE Software is affected by the following vulnerabilities: - A vulnerability in the processing of DCE/RPC requests that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to leak sensitive information or to restar...

Cisco Meraki Multiple Vulnerabilities (cisco-sa-snort3-dcerpc-vulns-J9HNF4tH)

According to its self-reported version, the Cisco Meraki device is affected by the following vulnerabilities.: - A vulnerability in the processing of DCE/RPC requests that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to leak sensitive information or to...

Cisco Firepower Threat Defense (FTD) Software Multiple Vulnerabilities (cisco-sa-snort3-dcerpc-vulns-J9HNF4tH)

According to its self-reported version, Cisco Secure Firewall Threat Defense FTD Software is affected by the following vulnerabilities: - A vulnerability in the processing of DCE/RPC requests that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to leak...

Suricata IDPE 8.0.3

Suricata is a network intrusion detection and prevention engine developed by the Open Information Security Foundation and its supporting vendors. The engine is multi-threaded and has native IPv6 support. It's capable of loading existing Snort rules and signatures and supports the Barnyard and...

CVE-2001-1558

Unknown vulnerability in IP defragmenter frag2 in Snort before 1.8.3 allows attackers to cause a denial of service crash...

CVE-2026-20027

Multiple Cisco products are affected by a vulnerability in the processing of DCE/RPC requests that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to leak sensitive information or to restart, resulting in an interruption of packet inspection. This vulnerabili...