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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.006 (45.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.001
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)
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.