CVE-2026-25880 json
Untrusted Search Path in SumatraPDF Reader (explorer.exe on Windows)
published 2026-02-09 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-6861
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 13%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 8 mo ago
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-5x4h-247q-px37 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
- sumatrapdfreader sumatrapdf
Classification
- Weakness
-
- CWE-426 Untrusted Search Path
References
-
github.com
/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-5x4h-247q-px37
exploit, vendor-advisory
Sources
- CVE List CVE-2026-25880
- NVD CVE-2026-25880
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.