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Microsoft SharePoint Server: Affected by CVE-2026-45659 RCE

July 2, 2026

Microsoft SharePoint Server versions Subscription Edition, 2019, and 2016 are affected by CVE-2026-45659, a deserialization RCE vulnerability actively exploited and added to CISA KEV.

Discovered from: SharePoint RCE CVE-2026-45659 Added to CISA KEV After Active Exploitation