CVE-2026-23512

Summary

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 Software

VendorProductVersion RangeStatus
sumatrapdfreadersumatrapdf<= 3.5.2affected

Weaknesses

  • CWE-426: CWE-426: Untrusted Search Path

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: total

References