CVE-2026-23512
SumatraPDF has an Untrusted Search Path in sumatrapdf/src/AppTools.cpp
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 8.6EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
14 Jan 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Affected products
sumatrapdfreader · sumatrapdfWant to know if your infrastructure is exposed to this?
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