CVE-2025-59228
Published: 14 October 2025
Description
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Security Summary
CVE-2025-59228 is an improper input validation vulnerability affecting Microsoft Office SharePoint. Published on 2025-10-14T17:16:03.747, it carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) and maps to CWE-20 (Improper Input Validation), with additional NVD-CWE-noinfo classification.
An authorized attacker with low privileges (PR:L) can exploit this vulnerability remotely over the network (AV:N) with low attack complexity (AC:L) and no user interaction required (UI:N). Successful exploitation enables arbitrary code execution in the context of the SharePoint service, resulting in high impacts to confidentiality, integrity, and availability (C:H/I:H/A:H) without scope change (S:U).
Microsoft's advisory provides guidance on this vulnerability at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59228.
Details
- CWE(s)
Affected Products
MITRE ATT&CK Enterprise Techniques
Why these techniques?
CVE enables remote code execution via improper input validation in Microsoft Office SharePoint, a public-facing web application, directly mapping to exploitation of public-facing applications.