Dossier
CVE-2026-58644
Coverage of CVE-2026-58644 in the Nexus archive.
- CISA Adds Exploited SharePoint RCE Zero-Day CVE-2026-58644 to KEV
CISA added a critical SharePoint Server vulnerability (CVE-2026-58644) with a CVSS score of 9.8 to its KEV catalog, requiring FCEB agencies to patch by July 19, 2026. The flaw is a deserialization issue exploitable for remote code execution.