Friday, February 27, 2026

Today's Security Snapshot

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Today's Security Brief

Friday's vulnerability disclosures include a CVSS 10.0 flaw in Copeland XWEB Pro (CVE-2026-21718) and a CVSS 9.9 Google Cloud service vulnerability (CVE-2026-27941), alongside critical issues in Xerox FreeFlow Core, Langflow, and EverShop. Critical CVEs jumped to 18, a 125% increase from the prior day's 8, while 100 high-priority vulnerabilities held steady. Remote code execution and authentication bypass patterns dominate the critical findings, affecting enterprise infrastructure from Totolink routers to OpenStack Vitrage deployments. Cisco Catalyst SD-WAN and multiple Microsoft Windows components are confirmed under active exploitation across 18 KEV entries. Patch availability remains at 0%, requiring organizations to prioritize compensating controls and network segmentation for affected systems.

  • CVSS 10.0 vulnerability in Copeland XWEB Pro (CVE-2026-21718) and CVSS 9.9 Google Cloud service flaw (CVE-2026-27941) require immediate risk assessment
  • 18 critical CVEs disclosed, up 125% from 8 the prior day, spanning Microsoft, Xerox, HP, and Langflow products
  • 100 high-priority CVEs remained consistent with the prior day's volume across the disclosure pipeline
  • Remote code execution and authentication bypass flaws affect Totolink N300RH routers, EverShop e-commerce, and OpenStack Vitrage
  • 0% patch availability across all disclosed vulnerabilities — compensating controls and network isolation are essential
  • 18 actively exploited vulnerabilities include Cisco Catalyst SD-WAN (CVSS 10.0), multiple Microsoft Windows components, and Roundcube Webmail

Immediate action: Prioritize network segmentation and access restrictions for Copeland XWEB Pro, Google Cloud services, Cisco Catalyst SD-WAN, and Microsoft Windows systems confirmed under active exploitation. With 0% patch availability, implement compensating controls including WAF rules, privilege reduction, and enhanced monitoring for all affected products until vendor patches are released.

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