{"id":1472,"date":"2026-09-17T23:42:44","date_gmt":"2026-09-18T04:42:44","guid":{"rendered":"https:\/\/cmitsolutions.com\/lasvegas-nv-1206\/?p=1472"},"modified":"2026-09-17T23:46:28","modified_gmt":"2026-09-18T04:46:28","slug":"cisco-firewall-vulnerability-las-vegas","status":"publish","type":"post","link":"https:\/\/cmitsolutions.com\/lasvegas-nv-1206\/blog\/cisco-firewall-vulnerability-las-vegas\/","title":{"rendered":"Cisco Firewall Flaw and Record Patch Tuesday: Las Vegas Alert"},"content":{"rendered":"
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IT Advisory<\/span><\/p>\n

A Maximum-Severity Cisco Firewall Vulnerability and a Record Patch Tuesday Hit at Once<\/h2>\n

Two separate emergencies landed on IT teams this month \u2014 and Las Vegas businesses running Cisco firewalls or unpatched Windows machines are exposed to both.<\/p>\n

Published by CMIT Solutions of Las Vegas \u00b7 Cybersecurity \u00b7 6 min read<\/p>\n<\/div>\n

A CVSS 10.0 Cisco Firewall Vulnerability \u2014 And No Workaround<\/h2>\n

If your business runs a Cisco Secure Firewall Management Center (FMC)<\/strong>, you now have one of the most dangerous flaws Cisco has published this year. CVE-2026-20079<\/strong> lets an unauthenticated, remote attacker send crafted HTTP requests to the FMC web interface, bypass authentication entirely, and execute scripts as root<\/strong> \u2014 full control of the device that manages your entire firewall fleet. It carries a CVSS score of 10.0, the maximum possible severity<\/strong>, and Cisco has confirmed there is no workaround. The only fix is to patch immediately.<\/p>\n

A related flaw, CVE-2026-20131, compounds the risk on the same platform, and researchers have already documented exploitation activity in the wild. For Las Vegas businesses in hospitality, healthcare, gaming, construction, and professional services \u2014 where a firewall management console often sits at the center of a multi-site network \u2014 this isn’t a “patch it next maintenance window” issue. It’s a “patch it today” issue.<\/p>\n

Key Stat<\/span>
\nCVE-2026-20079 requires no authentication, no user interaction, and no workaround exists \u2014 and it’s landed the same month Microsoft shipped its largest Patch Tuesday of 2026.<\/em><\/div>\n

Then Came the Biggest Patch Tuesday of the Year<\/h2>\n

Days before the Cisco disclosure, Microsoft released its September 2026 Patch Tuesday \u2014 fixing a record-breaking 966 vulnerabilities<\/strong>, the largest single Patch Tuesday Microsoft has ever shipped. Two of those flaws were already being actively exploited as zero-days before the patch existed:<\/p>\n