Search Results (8 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2026-20236 1 Cisco 5 Cisco Open Source Snort3, Cisco Secure Firewall Threat Defense (ftd) Software, Cisco Utd Snort Ips Engine Software and 2 more 2026-10-22 7.5 High
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20236 are related to issues concerning incorrect calculation that are grouped under the Common Weakness Enumeration (CWE) Base CWE-682.
CVE-2026-20179 1 Cisco 4 Cisco Open Source Snort3, Cisco Secure Firewall Threat Defense (ftd) Software, Cisco Utd Snort Ips Engine Software and 1 more 2026-10-22 5.8 Medium
Multiple Cisco products are affected by a vulnerability in the Snort 3 Generic Routing Encapsulation (GRE) 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 when Snort 3 parses GRE packets. An attacker could exploit this vulnerability by sending a crafted GRE packet to a targeted device to be parsed by Snort. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to restart unexpectedly, resulting in a DoS condition.
CVE-2026-20291 1 Cisco 5 Cisco Open Source Snort3, Cisco Secure Firewall Threat Defense (ftd) Software, Cisco Utd Snort Ips Engine Software and 2 more 2026-10-22 7.8 High
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20291 are related to issues concerning improper privilege management that are grouped under the Common Weakness Enumeration (CWE) Base CWE-269.
CVE-2026-20043 1 Cisco 5 Cisco Open Source Snort3, Cisco Secure Firewall Threat Defense (ftd) Software, Cisco Utd Snort Ips Engine Software and 2 more 2026-10-22 9 Critical
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20043 are related to issues concerning out-of-bounds writes that are grouped under the Common Weakness Enumeration (CWE) Base CWE-787.
CVE-2026-76489 1 Cisco 3 Cisco Open Source Snort3, Cisco Secure Firewall Threat Defense (ftd) Software, Secure Firewall Threat Defense 2026-10-22 5.8 Medium
Multiple Cisco products are affected by a vulnerability in the memory management implementation of Snort 3 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 when Snort 3 processes files, which could cause unreleased memory. An attacker could exploit this vulnerability by sending a large number of files to be processed. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to restart unexpectedly, resulting in a DoS condition.
CVE-2026-20197 1 Cisco 4 Cisco Open Source Snort3, Cisco Secure Firewall Threat Defense (ftd) Software, Cisco Utd Snort Ips Engine Software and 1 more 2026-10-22 5.8 Medium
Multiple Cisco products are affected by a vulnerability in the Snort 3 Teredo 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 when Snort 3 parses Teredo packets. An attacker could exploit this vulnerability by sending a crafted Teredo packet to a targeted device to be parsed by Snort. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to restart unexpectedly, resulting in a DoS condition.
CVE-2026-20019 1 Cisco 4 Cisco Open Source Snort3, Cisco Secure Firewall Threat Defense (ftd) Software, Cisco Utd Snort Ips Engine Software and 1 more 2026-10-22 5.8 Medium
Multiple Cisco products are affected by a vulnerability in the Snort 3 NetFlow 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 when Snort 3 parses UDP Netflow Protocol packets. An attacker could exploit this vulnerability by sending a single crafted Netflow packet through an established connection to be parsed by Snort 3. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to restart unexpectedly, resulting in a DoS condition.
CVE-2026-20222 1 Cisco 2 Adaptive Security Appliance Software, Cisco Secure Firewall Threat Defense (ftd) Software 2026-09-19 7.4 High
A vulnerability in the EIGRP implementation in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, adjacent attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper resource management when handling EIGRP update messages. An attacker could exploit this vulnerability by sending crafted EIGRP updates at a high rate to an affected device. A successful exploit could allow the attacker to trigger a memory leak that will eventually cause the affected device to reload unexpectedly.