PT-2025-15592 · Microsoft · Office Word+2

Haifei Li · Published 2025-04-08 · Updated 2025-10-14 · CVE-2025-29820

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 Word (affected versions not specified) Microsoft 365 Apps for Enterprise (affected versions not specified) Microsoft Office (affected versions not specified) Microsoft Office Long Term Servicing Channel (affected versions not specified) Microsoft SharePoint Enterprise Server (affected versions not specified)

Description This issue involves a use-after-free condition in Microsoft Office Word. Exploitation allows an unauthorized attacker to execute code locally. The vulnerability occurs due to improper memory management, specifically using memory after it has been freed.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2025-04218

CVE-2025-29820

Affected Products

Office Word

Office

Sharepoint Server

References · 13

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29820 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/719765 · Security Note
• https://bdu.fstec.ru/vul/2025-04218 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-29820 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-29820 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-29820 · Security Note
• https://osv.dev/vulnerability/CVE-2025-29820 · Vendor Advisory
• https://t.me/msrcreports/1990 · Telegram Post
• https://t.me/cvetracker/21160 · Telegram Post
• https://twitter.com/HaifeiLi/status/1978214185566916642 · Twitter Post
• https://twitter.com/windowsforum/status/1909662702303125544 · Twitter Post
• https://twitter.com/HaifeiLi/status/1909671571150848112 · Twitter Post
• https://twitter.com/CVEnew/status/1909906968774397957 · Twitter Post