PT-2025-1240 · Microsoft · Office+4

Jeongmin Choi + 4 · Published 2025-01-14 · Updated 2025-07-01 · CVE-2025-21365

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Microsoft Office versions prior to the fixed version Microsoft 365 Apps for Enterprise versions prior to the fixed version

Description The issue is related to the use of an unreliable path search in Microsoft Office and Microsoft 365 Apps for Enterprise. This allows an attacker to execute arbitrary code. The vulnerability affects Word, PowerPoint, and Outlook. It is described as a logic bug that includes built-in process control and built-in PV bypass.

Recommendations For Microsoft Office versions prior to the fixed version, update to the fixed version to resolve the issue. For Microsoft 365 Apps for Enterprise versions prior to the fixed version, update to the fixed version to resolve the issue. As a temporary workaround, consider restricting the use of built-in processes and PV until a patch is available.

Fix

RCE

Untrusted Search Path

Weakness Enumeration

CWE-426

Related Identifiers

BDU:2025-00632

CVE-2025-21365

Affected Products

365 Apps For Enterprise

Office

Outlook

Office Powerpoint

Office Word

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2025-21365 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21365 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-00632 · Security Note
• https://osv.dev/vulnerability/CVE-2025-21365 · Vendor Advisory
• https://t.me/cvenotify/127272 · Telegram Post
• https://t.me/cvedetector/15330 · Telegram Post
• https://twitter.com/j00sean/status/1879517647408418963 · Twitter Post
• https://t.me/avleonovcom/1497 · Telegram Post