CVE-2026-63520

high Microsoft
CVSS v3 Base Score
8.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
1.1%
Exploitation probability in 30 days
Top 37% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: August 11, 2026 (26 days ago)
Last Modified: August 13, 2026
Vendor: Microsoft
Source: NVD

Description

Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.

CWE

CWE-20

Affected Products

microsoft sharepoint server

References

🔗 msrc.microsoft.com