CVE-2026-23512SumatraPDF is a multi-format reader for Windows.
Updated under an hour ago ()
Does this affect you?
It affects sumatrapdfreader sumatrapdf. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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
- 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-426
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
sumatrapdfreader sumatrapdf sumatrapdfreader:sumatrapdf | through 3.5.2 | NVD |
References
- https://github.com/sumatrapdfreader/sumatrapdf/commit/2762e02a8cd7cb779c934a44257aac56ab7de673patch
- https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-rqg5-gj63-x4mvexploit, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.