CVE-2025-29979
Microsoft Office Excel Heap Buffer Overflow
Description
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
INFO
Published Date :
May 13, 2025, 5:15 p.m.
Last Modified :
May 19, 2025, 2:24 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2025-29979
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.
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-2025-29979.
| URL | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29979 | Vendor Advisory |
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-2025-29979 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-29979 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]
May. 19, 2025
Action Type Old Value New Value Added CWE CWE-787 Added CPE Configuration OR *cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:* *cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:* *cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:*:* *cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:*:* *cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:macos:*:* *cpe:2.3:a:microsoft:office_online_server:*:*:*:*:*:*:*:* versions up to (excluding) 16.0.10417.20010 Added Reference Type Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29979 Types: Vendor Advisory -
New CVE Received by [email protected]
May. 13, 2025
Action Type Old Value New Value Added Description Heap-based buffer overflow 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-122 Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29979
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-29979 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-2025-29979
weaknesses.