CVE-2025-53771 — MEDIUM (6.5)

Q: What is CVE-2025-53771?

CVE-2025-53771 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

Q: How severe is CVE-2025-53771?

CVE-2025-53771 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2025-53771?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Sharepoint Server.

Vulnerability Description

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

CVSS Score

6.5

MEDIUM

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

Affected Products

Vendor	Product	Versions
Microsoft	Sharepoint Server	< 16.0.18526.20508

Related Weaknesses (CWE)

CWE-287

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53771Vendor Advisory
https://www.bleepingcomputer.com/news/microsoft/microsoft-sharepoint-zero-day-exPress/Media Coverage

FAQ

What is CVE-2025-53771?

CVE-2025-53771 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

How severe is CVE-2025-53771?

CVE-2025-53771 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-53771?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Sharepoint Server.