Notepad++ Official Update Mechanism Hijacked to Deliver Malware to Select Users

The maintainer of Notepad++ has revealed that state-sponsored attackers hijacked the utility's update mechanism to redirect update traffic to malicious servers instead. "The attack involved an infrastructure-level compromise that allowed malicious actors to intercept and redirect update traffic...

VulnCheck KEV: CVE-2025-15556

Notepad++ when using the WinGUp updater, contains a download of code without integrity check vulnerability that could allow an attacker to intercept or redirect update traffic to download and execute an attacker-controlled installer. This could lead to arbitrary code execution with the privileges...

Notepad++ < 8.9.1 Vendor Recommended Security Hardening Update

The version of Notepad++ installed on the remote host is prior to 8.9.1. The vendor has released version 8.9.1 as a recommended security hardening update following a hijacking incident that affected earlier versions. Note that Nessus has not tested for this issue but has instead relied only on th...

KLA90864 ACE vulnerability in Notepad++

Remote code execution vulnerability was found in Notepad++. Malicious users can exploit this vulnerability to execute arbitrary code. Original advisories Notepad++ Hijacked by State-Sponsored Hackers CVE-2025-15556 Exploitation Public exploits exist for this vulnerability. Related products...

The vulnerability of the PDF, EPUB, MOBI, FB2, CHM, XPS, and DjVu viewing program SumatraPDF lies in the use of an insecure search path, allowing attackers to execute arbitrary code.

The vulnerability of the PDF, EPUB, MOBI, FB2, CHM, XPS, and DjVu viewing program SumatraPDF lies in the use of an unreliable search path during the processing of Advanced Options. Exploiting this vulnerability allows a attacker to execute arbitrary code by sending a specially created malicious...

CVE-2026-23512

SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, there is a Untrusted Search Path vulnerability when Advanced Options setting is trigger. The application executes notepad.exe without specifying an absolute path when using the Advanced Options setting. On Windows, this allows...

CVE-2025-68965

Permission control vulnerability in the Notepad module. Impact: Successful exploitation of this vulnerability may affect service confidentiality...

CVE-2025-68966

Permission control vulnerability in the Notepad module. Impact: Successful exploitation of this vulnerability may affect service confidentiality...

Notepad++ Plugin Persistence

This Metasploit module create persistence by adding a malicious plugin to Notepad++, as it blindly loads and executes DLL from its plugin directory on startup, meaning that the payload will be executed every time Notepad++ is launched...

CVE-2026-23512

SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, there is a Untrusted Search Path vulnerability when Advanced Options setting is trigger. The application executes notepad.exe without specifying an absolute path when using the Advanced Options setting. On Windows, this allows...

CVE-2026-23512 SumatraPDF has an Untrusted Search Path in sumatrapdf/src/AppTools.cpp

SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, there is a Untrusted Search Path vulnerability when Advanced Options setting is trigger. The application executes notepad.exe without specifying an absolute path when using the Advanced Options setting. On Windows, this allows...

EUVD-2026-2675

SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, there is a Untrusted Search Path vulnerability when Advanced Options setting is trigger. The application executes notepad.exe without specifying an absolute path when using the Advanced Options setting. On Windows, this allows...

CVE-2026-23512

SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, there is a Untrusted Search Path vulnerability when Advanced Options setting is trigger. The application executes notepad.exe without specifying an absolute path when using the Advanced Options setting. On Windows, this allows...

CVE-2026-23512

SumatraPDF has a Untrusted Search Path vulnerability in version 3.5.2 and earlier when the Advanced Options setting is triggered. The code path executes notepad.exe without an absolute path, allowing a malicious notepad.exe placed in the installation directory to run arbitrary code with local acc...

CVE-2026-23512 SumatraPDF has an Untrusted Search Path in sumatrapdf/src/AppTools.cpp

SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, there is a Untrusted Search Path vulnerability when Advanced Options setting is trigger. The application executes notepad.exe without specifying an absolute path when using the Advanced Options setting. On Windows, this allows...

CVE-2026-23512 SumatraPDF has an Untrusted Search Path in sumatrapdf/src/AppTools.cpp

SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, there is a Untrusted Search Path vulnerability when Advanced Options setting is trigger. The application executes notepad.exe without specifying an absolute path when using the Advanced Options setting. On Windows, this allows...

CVE-2025-68966

Permission control vulnerability in the Notepad module. Impact: Successful exploitation of this vulnerability may affect service confidentiality...

CVE-2025-68965

Permission control vulnerability in the Notepad module. Impact: Successful exploitation of this vulnerability may affect service confidentiality...

CVE-2025-68966

Permission control vulnerability in the Notepad module. Impact: Successful exploitation of this vulnerability may affect service confidentiality...

CVE-2025-68965

Permission control vulnerability in the Notepad module. Impact: Successful exploitation of this vulnerability may affect service confidentiality...