Managed IT ServicesCybersecurity
Actively Exploited SharePoint Flaw: Why SMBs Should Patch CVE-2026-45659 Now
CISA added CVE-2026-45659 to its Known Exploited Vulnerabilities catalog on July 1, 2026. If your business runs on-premises SharePoint Server 2016, 2019, or Subscription Edition, this is a patch-now issue because attackers can turn low-level access into remote code execution.
July 8, 2026
5 min read