CVE-2025-56383
Notepad++ DLL Hijacking Vulnerability
Description
Notepad++ v8.8.3 has a DLL hijacking vulnerability, which can replace the original DLL file to execute malicious code. NOTE: this is disputed by multiple parties because the behavior only occurs when a user installs the product into a directory tree that allows write access by arbitrary unprivileged users.
INFO
Published Date :
Sept. 26, 2025, 6:15 p.m.
Last Modified :
Oct. 1, 2025, 2:15 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-56383
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
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | ||||
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update Notepad++ to the latest version.
- Verify DLL integrity and locations.
- Remove any unauthorized DLL files.
Public PoC/Exploit Available at Github
CVE-2025-56383 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2025-56383.
| URL | Resource |
|---|---|
| https://github.com/notepad-plus-plus/notepad-plus-plus | |
| https://github.com/zer0t0/CVE-2025-56383-Proof-of-Concept | |
| https://github.com/zer0t0/CVE-2025-56383-Proof-of-Concept/issues/1 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-56383 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-2025-56383
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).
CVE-2025-56383-Proof-of-Concept
C
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
security cve exploit poc vulnerability
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-56383 vulnerability anywhere in the article.
-
CybersecurityNews
Notepad++ DLL Hijacking Vulnerability Let Attackers Execute Malicious Code
A newly discovered DLL hijacking vulnerability in Notepad++, the popular source code editor, could allow attackers to execute arbitrary code on a victim’s machine. Tracked as CVE-2025-56383, the flaw ... Read more
-
Daily CyberSecurity
Morte Botnet Unveiled: A Rapidly Growing Loader-as-a-Service Campaign Exploiting Routers and Enterprise Apps
Researchers at CloudSEK Threat Intelligence (TRIAD) have exposed a sophisticated botnet operation that systematically compromises SOHO routers, IoT devices, and enterprise applications through web-bas ... Read more
-
Daily CyberSecurity
DLL Hijacking Flaw (CVE-2025-56383) Found in Notepad++, Allowing Arbitrary Code Execution, PoC Available
A newly disclosed vulnerability in Notepad++ v8.8.3 has been assigned CVE-2025-56383. The flaw, rated CVSS 6.5, allows attackers to hijack Notepad++’s DLL loading process, potentially enabling the exe ... Read more
The following table lists the changes that have been made to the
CVE-2025-56383 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.
-
CVE Modified by [email protected]
Oct. 01, 2025
Action Type Old Value New Value Added Tag disputed Changed Description Notepad++ v8.8.3 has a DLL hijacking vulnerability, which can replace the original DLL file to execute malicious code. Notepad++ v8.8.3 has a DLL hijacking vulnerability, which can replace the original DLL file to execute malicious code. NOTE: this is disputed by multiple parties because the behavior only occurs when a user installs the product into a directory tree that allows write access by arbitrary unprivileged users. Added Reference https://github.com/zer0t0/CVE-2025-56383-Proof-of-Concept/issues/1 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 29, 2025
Action Type Old Value New Value Added CWE CWE-427 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 29, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Removed CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Removed CWE CWE-77 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 26, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Added CWE CWE-77 -
New CVE Received by [email protected]
Sep. 26, 2025
Action Type Old Value New Value Added Description Notepad++ v8.8.3 has a DLL hijacking vulnerability, which can replace the original DLL file to execute malicious code. Added Reference https://github.com/notepad-plus-plus/notepad-plus-plus Added Reference https://github.com/zer0t0/CVE-2025-56383-Proof-of-Concept