PT-2026-45539 · Microsoft · Sharepoint Server

CVE-2026-47294 · Published 2026-05-29 · Updated 2026-06-17

Positive Technologies (AI Summary)

CVSS v3.1

8.0

High

Base vector

AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Microsoft Office SharePoint (affected versions not specified)

Description Deserialization of untrusted data allows an authorized attacker to execute arbitrary code over a network, which can affect the system. Deserialization is the process of converting a data stream back into an object.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2026-47294

Affected Products

Sharepoint Server

References · 5

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47294 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-47294 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-47294 · Security Note
• https://t.me/cveNotify/169942 · Telegram Post
• https://twitter.com/CCBalert/status/2061804740845912403 · Twitter Post