7.8
HIGH CVSS 3.1
CVE-2025-53738
Microsoft Office Word Use After Free Code Execution Vulnerability
Description

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

INFO

Published Date :

Aug. 12, 2025, 6:15 p.m.

Last Modified :

Aug. 18, 2025, 3:41 p.m.

Remotely Exploit :

No
Affected Products

The following products are affected by CVE-2025-53738 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Microsoft office
2 Microsoft word
3 Microsoft 365_apps
4 Microsoft office_long_term_servicing_channel
5 Microsoft office_macos_2024
6 Microsoft office_macos_2021
7 Microsoft word_2016
8 Microsoft office_2024
9 Microsoft office_2021
10 Microsoft office_2019
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
Solution
This vulnerability can be remediated by applying the latest security updates from Microsoft.
  • Apply the latest security updates for Microsoft Office.
  • For Office 365, Office 2016 C2R, or Office 2019, enable automatic updates or manually update within an Office application.
  • Update Office for Mac to version 16.100 or later.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-53738.

URL Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53738 Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-53738 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-53738 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-53738 vulnerability anywhere in the article.

  • BleepingComputer
Microsoft August 2025 Patch Tuesday fixes one zero-day, 107 flaws

Today is Microsoft's August 2025 Patch Tuesday, which includes security updates for 107 flaws, including one publicly disclosed zero-day vulnerability in Windows Kerberos.This Patch Tuesday also fixes ... Read more

Published Date: Aug 12, 2025 (1 week, 3 days ago)
  • CybersecurityNews
Microsoft Patch Tuesday August 2025 Released – 107 Vulnerabilities Fixed Including 36 RCE

Microsoft released its August Patch Tuesday security updates, addressing a total of 107 vulnerabilities across its product ecosystem. The update includes fixes for 90 vulnerabilities, classified as fo ... Read more

Published Date: Aug 12, 2025 (1 week, 3 days ago)

The following table lists the changes that have been made to the CVE-2025-53738 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Aug. 18, 2025

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:* *cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:* *cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:* *cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x86:* *cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x64:* *cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x64:* *cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x64:* *cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x86:* *cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x64:* *cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x86:* *cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:macos:*:* *cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x86:*
    Added Reference Type Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53738 Types: Vendor Advisory
  • New CVE Received by [email protected]

    Aug. 12, 2025

    Action Type Old Value New Value
    Added Description Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
    Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Added CWE CWE-416
    Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53738
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact