Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Microsoft SharePoint Server Spoofing Vulnerability
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L L R C L L N 5.4 .0033 26.1 —
AFFECTED
Product Versions Fixed
Microsoft SharePoint Enterprise Server 2016 16.0.0 – —
Microsoft SharePoint Server 2019 16.0.0 – —
Microsoft SharePoint Server Subscription Edition 16.0.0 – —
TIMELINE
Jul 14 Reserved by microsoft
Jul 16 Published (CNA: microsoft)
Jul 22 RESCORED — CVE-2026-62826 (Microsoft SharePoint Enterprise Server 2016). CVSS 4.6 → 5.4 (NVD).
Description
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| July 14, 2026 | Reserved | Reserved by microsoft |
| July 16, 2026 | Published | Published (CNA: microsoft) |
| July 22, 2026 | RESCORED | RESCORED — CVE-2026-62826 (Microsoft SharePoint Enterprise Server 2016). CVSS 4.6 → 5.4 (NVD). |
Affected
Affected products and packages — 3 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | — | 16.0.0 | — |
| Microsoft | Microsoft SharePoint Server 2019 | — | 16.0.0 | — |
| Microsoft | Microsoft SharePoint Server Subscription Edition | — | 16.0.0 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-62826 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.