CVE-2026-25880
Last modified
CVE-2026-25880 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, the PDF reader allows execution of a malicious binary (explorer.exe) located in the same directory as the opened PDF when the user clicks File → “Show in folder”. EPSS estimates a 0.19% chance of exploitation in the next 30 days.
Description
SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, the PDF reader allows execution of a malicious binary (explorer.exe) located in the same directory as the opened PDF when the user clicks File → “Show in folder”. This behavior leads to arbitrary code execution on the victim’s system with the privileges of the current user, without any warning or user interaction beyond the menu click.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Sumatrapdfreader | Sumatrapdf | <= 3.5.2 |
References
- https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-5x4h-247q-px37Exploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-25880?
How severe is CVE-2026-25880?
How do I fix CVE-2026-25880?
Are you affected by CVE-2026-25880?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST