The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added a maximum-severity security flaw impacting N-able N-central to its Known Exploited Vulnerabilities (KEV) catalog, requiring Federal Civilian Executive Branch (FCEB) agencies to apply the fixes by September 11, 2026.

The vulnerability in question is CVE-2026-86218 (CVSS score: 10.0), which has been described as a