9.4
CRITICAL CVSS 4.0
CVE-2025-52939
NotepadNext Out-of-bounds Write Vulnerability
Description

Out-of-bounds Write vulnerability in dail8859 NotepadNext (src/lua/src modules). This vulnerability is associated with program files ldebug.C, lvm.C. This issue affects NotepadNext: through v0.11.

INFO

Published Date :

June 23, 2025, 10:15 a.m.

Last Modified :

June 23, 2025, 8:16 p.m.

Remotely Exploit :

No
Affected Products

The following products are affected by CVE-2025-52939 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.

No affected product recoded yet

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 4.0 CRITICAL [email protected]
Solution
Update NotepadNext to a version that addresses the out-of-bounds write vulnerability.
  • Update NotepadNext to the latest version.
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-2025-52939.

URL Resource
https://github.com/dail8859/NotepadNext/commit/3e928d91b8fc8bb5c77801ee8652f41e98d12571
https://github.com/dail8859/NotepadNext/pull/757/files
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-52939 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-2025-52939 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-2025-52939 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2025-52939 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.

  • New CVE Received by [email protected]

    Jun. 23, 2025

    Action Type Old Value New Value
    Added Description Out-of-bounds Write vulnerability in dail8859 NotepadNext (src/lua/src modules). This vulnerability is associated with program files ldebug.C, lvm.C. This issue affects NotepadNext: through v0.11.
    Added CVSS V4.0 AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:C/RE:M/U:Red
    Added CWE CWE-787
    Added Reference https://github.com/dail8859/NotepadNext/commit/3e928d91b8fc8bb5c77801ee8652f41e98d12571
    Added Reference https://github.com/dail8859/NotepadNext/pull/757/files
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: 9.4
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
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SS Confidentiality
SS Integrity
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