CVE-2026-23512: SumatraPDF has an Untrusted Search Path in sumatrapdf/src/AppTools.cpp
sumatrapdfreader · sumatrapdf
Affected: sumatrapdfreader · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 13% of scored CVEs
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- sumatrapdfreader · sumatrapdf<= 3.5.2
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- sumatrapdfreader
- Published
- January 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-23512 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.