Vulnerability · Published Jul 20, 2025 · Assigned by microsoft
CVE-2025-53771Microsoft SharePoint Server Spoofing Vulnerability
Medium 6.5
In plain English
A medium-severity improper authentication in Microsoft SharePoint Enterprise Server 2016 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 99.9% (higher than 99.9% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit, Nuclei.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)99.9%top 0.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling2Metasploit, Nuclei
Official description
Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 – before 16.0.5513.1001 |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 – before 16.0.10417.20037 |
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 – before 16.0.18526.20508 |
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C