EUVD-2026-22587
6.5
CVSS 3.1
Temporal: 6.0
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CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Lifecycle Timeline
2
Analysis Generated
Apr 14, 2026 - 19:43 vuln.today
Added to CISA KEV
Apr 14, 2026 - 17:47 CISA
DescriptionNVD
Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
AnalysisAI
Improper input validation in Microsoft SharePoint Server enables network-based spoofing attacks without authentication, allowing attackers to forge communications and deceive users. Affects SharePoint Enterprise Server 2016, SharePoint Server 2019, and SharePoint Server Subscription Edition. …
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External POC / Exploit Code
Leaving vuln.today
Destination URL
POC code from unknown sources may be malicious, contain backdoors, or be fake.
Always review and test exploit code in a safe, isolated environment (VM/sandbox).
Verify the source reputation and cross-reference with known databases (Exploit-DB, GitHub Security).