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CVE PROGRAM SOURCE RECORD8.6 High

CVE-2026-23512

SumatraPDF has an Untrusted Search Path in sumatrapdf/src/AppTools.cpp

Description

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 execution of a malicious notepad.exe placed in the application's installation directory, leading to arbitrary code execution.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

sumatrapdfreader sumatrapdf

  • <= 3.5.2affected

References