CVE-2026-58644

Microsoft SharePoint Remote Code Execution Vulnerability

CVSS 9.8 CRITICALEPSS 1.3%◆ VulnCheck KEVCWE-502

Vexday Risk Score

50Attention

SSVC decision (CISA)

Act

Exploitation + impact → act immediately

CVSS 9.8EPSS 1.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

14 Jul 2026Published on NVD

Recommendation: Patch as soon as possible — active exploitation confirmed.

Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

Affected products

References