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High 7.3Published Jun 9, 2026

CVE-2026-47634Microsoft SharePoint Server Spoofing Vulnerability

Updated under an hour ago ()

Does this affect you?

It affects Microsoft SharePoint Server 2019 and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Improper neutralization of special elements in output used by a downstream component ('injection') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

CVSS
7.3 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
Weakness (CWE)
CWE-74
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
microsoft
NVD analysis
Modified
Record last updated
Sep 24, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Microsoft Microsoft SharePoint Server 2019
microsoft:sharepoint_server_2019 (from the name)
from 16.0.0 before 16.0.10417.20153
CNA record
Microsoft Microsoft SharePoint Server Subscription Edition
microsoft:sharepoint_server_subscription_edition (from the name)
from 16.0.0 before 16.0.19725.20384
CNA record
microsoft sharepoint_server
microsoft:sharepoint_server
before 16.0.19725.20384; 2019
NVD

References

  • vendor-advisory, patch

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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