CVE-2025-53739
Microsoft Office Excel Type Confusion Code Execution Vulnerability
Description
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
INFO
Published Date :
Aug. 12, 2025, 6:15 p.m.
Last Modified :
Aug. 15, 2025, 5:15 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-53739
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.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Apply the latest security updates provided by Microsoft.
- For Office 365, Office 2016 C2R, or Office 2019, enable automatic updates, or manually update through an Office application.
- For Office for Mac, update 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-2025-53739.
| URL | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53739 | 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-2025-53739 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-2025-53739
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-2025-53739 vulnerability anywhere in the article.
-
Hackread - Latest Cybersecurity, Hacking News, Tech, AI & Crypto
Patch Tuesday: Microsoft Fixes 107 Vulnerabilities, Including 13 RCE Flaws
Microsoft’s August Patch Tuesday fixes 107 vulnerabilities, including 13 critical RCE flaws, impacting Windows, Office, Azure, and more, urging fast updates. Microsoft delivered patches for 107 vulner ... Read more
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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
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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
The following table lists the changes that have been made to the
CVE-2025-53739 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. 15, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:microsoft:office_online_server:-:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:* *cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:* *cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x64:* *cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x86:* *cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:* *cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x64:* *cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x86:* *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:*:* Added Reference Type Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53739 Types: Vendor Advisory -
New CVE Received by [email protected]
Aug. 12, 2025
Action Type Old Value New Value Added Description Access of resource using incompatible type ('type confusion') in Microsoft Office Excel 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-843 Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53739