Detections
Analytics

Microsoft SharePoint Server 2016 < 16.0.5556.1005 Remote Code Execution

critical Web App Scanning Plugin ID 115443

Synopsis

Microsoft SharePoint Server 2016 < 16.0.5556.1005 Remote Code Execution

Description

According to its self-reported version number, the Microsoft SharePoint application running on the remote host is affected by a remote code execution vulnerability due to the deserialization of untrusted data.

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Microsoft SharePoint Server 2016 build 16.0.5556.1005 or later.

See Also

https://msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2026-58644

Plugin Details

Severity: Critical

ID: 115443

Type: Version Based

Published: 9/1/2026

Updated: 9/1/2026

Scan Template: api, basic, full, pci, scan

Risk Information

VPR

Risk Factor: Critical

Score: 9.2

Percentile: 99.76

CVSS v2

Risk Factor: Critical

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-58644

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS Score Source: CVE-2026-58644

Vulnerability Information

CPE: cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:*:*:*:*

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 6/6/2026

CISA Known Exploited Vulnerability Due Dates: 7/19/2026

Reference Information

CVE: CVE-2026-58644