CVE-2025-62199

Published: Nov 11, 2025Modified: Jun 17, 2026

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

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Affected (11)

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

4 products

Office Long Term Servicing Channel

Configuration A

11 vulnerable

Vulnerable Software	Affected Versions
Microsoft 365 Apps	All versions
Microsoft 365 Apps	All versions
Microsoft 365 Copilot	Before 16.0.19426.20044
Microsoft Excel	Version 2016
Microsoft Excel	Version 2016
Microsoft Office Long Term Servicing Channel	Version 2021
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 Long Term Servicing Channel	Version 2024

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (3)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62199

Source: secure@microsoft.com

Vendor Advisory

https://www.vicarius.io/vsociety/posts/cve-2025-62199-detect-microsoft-office-rce-vulnerability

Source: af854a3a-2127-422b-91ae-364da2661108

https://www.vicarius.io/vsociety/posts/cve-2025-62199-mitigate-microsoft-office-rce-vulnerability

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.