CVE-2025-53771

MEDIUM EPSS 100.0%
Published Jul 20, 202511mo ago · Modified Jun 17, 20261w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Jul 20, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago

Description

Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

CVSS Details

Base Score
6.5
Exploitability
3.9
Impact
2.5
Vector string
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

Threat Intelligence

EPSS Exploit Probability
100.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-287 Improper Authentication Authentication

Affected Products 3

VendorProductVersionRange
microsoftsharepoint_server* <16.0.18526.20508
microsoftsharepoint_server2016any
microsoftsharepoint_server2019any

References 2

  • msrc.microsoft.com https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53771
    Vendor Advisory
  • bleepingcomputer.com https://www.bleepingcomputer.com/news/microsoft/microsoft-sharepoint-zero-day-exploited-in-rce-attacks-no-patch-available/
    Press/Media Coverage

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.