What is CVE-2026-62917?

CVE-2026-62917 is a medium-severity vulnerability in Microsoft Sharepoint Enterprise Server 2016, classified under Improper Input Validation. CVSS score: 4.6/10. Published 2026-08-11.

How severe is CVE-2026-62917?

Medium severity. CVSS v3 base score is 4.6 out of 10.

Improper input validation in Microsoft Sharepoint Enterprise Server 2016

CVE-2026-62917

Improper input validation in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.

Affected products

Microsoft Sharepoint Enterprise Server 2016 — versions 16.0.0
Microsoft Sharepoint Server 2019 — versions 16.0.0
Microsoft Sharepoint Server Subscription Edition — versions 16.0.0
Microsoft Sharepoint_server — versions 2016, 2019

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

Microsoft SharePoint Server Spoofing Vulnerability (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-62917?: CVE-2026-62917 is a medium-severity vulnerability in Microsoft Sharepoint Enterprise Server 2016, classified under Improper Input Validation. CVSS score: 4.6/10. Published 2026-08-11.
How severe is CVE-2026-62917?: Medium severity. CVSS v3 base score is 4.6 out of 10.