PT-2025-32843 · Microsoft · Office Word

Haifei Li · Published 2025-08-12 · Updated 2025-10-16 · CVE-2025-53738

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)

Description A use after free condition exists in Microsoft Office Word. This allows an unauthorized attacker to execute code locally. The issue involves the potential for malicious code execution due to improper memory management.

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:2025-10036

CVE-2025-53738

Affected Products

Office Word

References · 10

• https://bdu.fstec.ru/vul/2025-10036 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53738 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-53738 · Security Note
• https://osv.dev/vulnerability/CVE-2025-53738 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-53738 · Security Note
• https://t.me/msrcreports/2194 · Telegram Post
• https://twitter.com/HaifeiLi/status/1955397785299325151 · Twitter Post
• https://t.me/CVEtracker/29795 · Telegram Post
• https://twitter.com/CVEnew/status/1955322634838606015 · Twitter Post
• https://twitter.com/HaifeiLi/status/1978214185566916642 · Twitter Post