CVE-2025-30383

Published: May 13, 2025Modified: May 19, 2025

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: secure@microsoft.com (Secondary)

Description

Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Affected (11)

Products: Microsoft: 365 Apps, Excel, Office, Office Long Term Servicing Channel, Office Online Server

5 products

Office Long Term Servicing Channel

Office Online Server

Configuration A

11 vulnerable

Vulnerable Software	Affected Versions
Microsoft 365 Apps	All versions
Microsoft 365 Apps	All versions
Microsoft Excel	Version 2016
Microsoft Excel	Version 2016
Microsoft Office	Version 2019
Microsoft Office	Version 2019
Microsoft Office Long Term Servicing Channel	Version 2021
Microsoft Office Long Term Servicing Channel	Version 2021
Microsoft Office Long Term Servicing Channel	Version 2024
Microsoft Office Long Term Servicing Channel	Version 2024
Microsoft Office Online Server	Before 16.0.10417.20010

Related CWEs

Access of Resource Using Incompatible Type ('Type Confusion')

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-30383

Source: secure@microsoft.com

Vendor Advisory

Timeline

No history available yet.