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Cisco vulnerabilities by product, model, software, and advisory.

Multiple Cisco Products Snort 3 Denial of Service Vulnerabilities

cisco-sa-snort3-multi-dos-XFWkWSwz · Medium · Published · Updated

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 the Details section of this advisory. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort3-multi-dos-XFWkWSwz This advisory is part of the March 2026 release of the Cisco Secure Firewall ASA, Secure FMC, and Secure FTD Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: March 2026 Semiannual Cisco Secure Firewall ASA, Secure FMC, and Secure FTD Software Security Advisory Bundled Publication.

Cisco advisory · CSAF JSON

Workarounds

There are no workarounds that address these vulnerabilities.

CVEsCVE-2026-20005, CVE-2026-20065, CVE-2026-20066, CVE-2026-20067, CVE-2026-20068
Cisco Bug IDsCSCwo93207, CSCwn65473, CSCwp99280, CSCwo93208, CSCwq82404, CSCwn49805, CSCwr21398, CSCwq23374, CSCwq97644, CSCwq97649, CSCwq01530, CSCwq01529, CSCwq03411, CSCwq97624
CVSS ScoreBase 5.8
Base 5.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L/E:X/RL:X/RC:X
Product Names From Source
Cisco Cyber Vision, Cisco UTD SNORT IPS Engine Software, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.0, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.0.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.1.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.2, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.2.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.3, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.4, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.5, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.6, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.6.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.6.2, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.6.3, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.7, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.8, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.8.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.1.0, Cisco Secure Firewall Threat Defense (FTD) Software 7.1.0.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.1.0.2, Cisco Secure Firewall Threat Defense (FTD) Software 7.1.0.3, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.0, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.0.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.2, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.3, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.4, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.4.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.5, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.5.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.6, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.7, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.5.2, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.8, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.8.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.9, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.10, Cisco Secure Firewall Threat Defense (FTD) Software 7.2.10.2, Cisco Secure Firewall Threat Defense (FTD) Software 7.3.0, Cisco Secure Firewall Threat Defense (FTD) Software 7.3.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.3.1.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.3.1.2, Cisco Secure Firewall Threat Defense (FTD) Software 7.4.0, Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.4.1.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.4.2, Cisco Secure Firewall Threat Defense (FTD) Software 7.4.2.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.4.2.2, Cisco Secure Firewall Threat Defense (FTD) Software 7.4.2.3, Cisco Secure Firewall Threat Defense (FTD) Software 7.4.2.4, Cisco Secure Firewall Threat Defense (FTD) Software 7.4.3, Cisco Secure Firewall Threat Defense (FTD) Software 7.6.0, Cisco Secure Firewall Threat Defense (FTD) Software 7.6.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.6.2, Cisco Secure Firewall Threat Defense (FTD) Software 7.6.2.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.7.0, Cisco Secure Firewall Threat Defense (FTD) Software 7.7.10, Cisco Secure Firewall Threat Defense (FTD) Software 7.7.10.1, Cisco Secure Firewall Threat Defense (FTD) Software, Cisco Firepower 2100 Series, Cisco Firepower 1000 Series, Cisco ASA 5500-X Series Firewalls, Cisco 3000 Series Industrial Security Appliances (ISA), Cisco Firepower 9000 Series, Cisco Firepower 4100 Series, Cisco Secure Firewall Threat Defense Virtual, Cisco Secure Firewall 3100 Series, Cisco Secure Firewall 4200 Series, Cisco Secure Firewall 1200 Series

Related Products

Product CVE Evidence
Cisco UTD SNORT IPS Engine Software CVE-2026-20068 Cisco OpenVuln
Cisco UTD SNORT IPS Engine Software CVE-2026-20067 Cisco OpenVuln
Cisco UTD SNORT IPS Engine Software CVE-2026-20066 Cisco OpenVuln
Cisco UTD SNORT IPS Engine Software CVE-2026-20065 Cisco OpenVuln
Cisco UTD SNORT IPS Engine Software CVE-2026-20005 Cisco OpenVuln
Cisco Secure Firewall Threat Defense Virtual CVE-2026-20068 Cisco OpenVuln
Cisco Secure Firewall Threat Defense Virtual CVE-2026-20067 Cisco OpenVuln
Cisco Secure Firewall Threat Defense Virtual CVE-2026-20066 Cisco OpenVuln
Cisco Secure Firewall Threat Defense Virtual CVE-2026-20065 Cisco OpenVuln
Cisco Secure Firewall Threat Defense Virtual CVE-2026-20005 Cisco OpenVuln
Cisco Secure Firewall Threat Defense (FTD) Software CVE-2026-20068 Cisco OpenVuln
Cisco Secure Firewall Threat Defense (FTD) Software CVE-2026-20067 Cisco OpenVuln
Cisco Secure Firewall Threat Defense (FTD) Software CVE-2026-20066 Cisco OpenVuln
Cisco Secure Firewall Threat Defense (FTD) Software CVE-2026-20065 Cisco OpenVuln
Cisco Secure Firewall Threat Defense (FTD) Software CVE-2026-20005 Cisco OpenVuln
Cisco Secure Firewall 4200 Series CVE-2026-20068 Cisco OpenVuln
Cisco Secure Firewall 4200 Series CVE-2026-20067 Cisco OpenVuln
Cisco Secure Firewall 4200 Series CVE-2026-20066 Cisco OpenVuln
Cisco Secure Firewall 4200 Series CVE-2026-20065 Cisco OpenVuln
Cisco Secure Firewall 4200 Series CVE-2026-20005 Cisco OpenVuln
Cisco Secure Firewall 3100 Series CVE-2026-20068 Cisco OpenVuln
Cisco Secure Firewall 3100 Series CVE-2026-20067 Cisco OpenVuln
Cisco Secure Firewall 3100 Series CVE-2026-20066 Cisco OpenVuln
Cisco Secure Firewall 3100 Series CVE-2026-20065 Cisco OpenVuln
Cisco Secure Firewall 3100 Series CVE-2026-20005 Cisco OpenVuln
Cisco Secure Firewall 1200 Series CVE-2026-20068 Cisco OpenVuln
Cisco Secure Firewall 1200 Series CVE-2026-20067 Cisco OpenVuln
Cisco Secure Firewall 1200 Series CVE-2026-20066 Cisco OpenVuln
Cisco Secure Firewall 1200 Series CVE-2026-20065 Cisco OpenVuln
Cisco Secure Firewall 1200 Series CVE-2026-20005 Cisco OpenVuln
Cisco Firepower 9000 Series CVE-2026-20068 Cisco OpenVuln
Cisco Firepower 9000 Series CVE-2026-20067 Cisco OpenVuln
Cisco Firepower 9000 Series CVE-2026-20066 Cisco OpenVuln
Cisco Firepower 9000 Series CVE-2026-20065 Cisco OpenVuln
Cisco Firepower 9000 Series CVE-2026-20005 Cisco OpenVuln
Cisco Firepower 4100 Series CVE-2026-20068 Cisco OpenVuln
Cisco Firepower 4100 Series CVE-2026-20067 Cisco OpenVuln
Cisco Firepower 4100 Series CVE-2026-20066 Cisco OpenVuln
Cisco Firepower 4100 Series CVE-2026-20065 Cisco OpenVuln
Cisco Firepower 4100 Series CVE-2026-20005 Cisco OpenVuln
Cisco Firepower 2100 Series CVE-2026-20068 Cisco OpenVuln
Cisco Firepower 2100 Series CVE-2026-20067 Cisco OpenVuln
Cisco Firepower 2100 Series CVE-2026-20066 Cisco OpenVuln
Cisco Firepower 2100 Series CVE-2026-20065 Cisco OpenVuln
Cisco Firepower 2100 Series CVE-2026-20005 Cisco OpenVuln
Cisco Firepower 1000 Series CVE-2026-20068 Cisco OpenVuln
Cisco Firepower 1000 Series CVE-2026-20067 Cisco OpenVuln
Cisco Firepower 1000 Series CVE-2026-20066 Cisco OpenVuln
Cisco Firepower 1000 Series CVE-2026-20065 Cisco OpenVuln
Cisco Firepower 1000 Series CVE-2026-20005 Cisco OpenVuln
Cisco Cyber Vision CVE-2026-20068 Cisco OpenVuln
Cisco Cyber Vision CVE-2026-20067 Cisco OpenVuln
Cisco Cyber Vision CVE-2026-20066 Cisco OpenVuln
Cisco Cyber Vision CVE-2026-20065 Cisco OpenVuln
Cisco Cyber Vision CVE-2026-20005 Cisco OpenVuln
Cisco ASA 5500-X Series Firewalls CVE-2026-20068 Cisco OpenVuln
Cisco ASA 5500-X Series Firewalls CVE-2026-20067 Cisco OpenVuln
Cisco ASA 5500-X Series Firewalls CVE-2026-20066 Cisco OpenVuln
Cisco ASA 5500-X Series Firewalls CVE-2026-20065 Cisco OpenVuln
Cisco ASA 5500-X Series Firewalls CVE-2026-20005 Cisco OpenVuln
Cisco 3000 Series Industrial Security Appliances (ISA) CVE-2026-20068 Cisco OpenVuln
Cisco 3000 Series Industrial Security Appliances (ISA) CVE-2026-20067 Cisco OpenVuln
Cisco 3000 Series Industrial Security Appliances (ISA) CVE-2026-20066 Cisco OpenVuln
Cisco 3000 Series Industrial Security Appliances (ISA) CVE-2026-20065 Cisco OpenVuln
Cisco 3000 Series Industrial Security Appliances (ISA) CVE-2026-20005 Cisco OpenVuln