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CVE-2023-6401

HighPublished

NotePad++ dbghelp.exe uncontrolled search path

Published: Nov 30, 2023
Updated: Aug 2, 2024
Assigning CNA: VulDB
Evidence observed: Aug 8, 2026

Primary CVSS

7.8/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

0.3%

Low · next 30 days

Percentile: 26.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

A vulnerability classified as problematic was found in NotePad++ up to 8.1. Affected by this vulnerability is an unknown functionality of the file dbghelp.exe. The manipulation leads to uncontrolled search path. An attack has to be approached locally. The identifier VDB-246421 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Sources

CVE-2023-6401PoC
CVE-2023-6401 is a DLL hijacking vulnerability that allows attackers to execute arbitrary code by placing a malicious `dbghelp.dll` file in the application directory. This project demonstrates the vulnerability and provides a reproducible PoC.

Responsible use

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