CVE-2026-25880 is a high-severity vulnerability affecting SumatraPDF versions 3.5.2 and earlier, allowing arbitrary code execution. When a user clicks "Show in folder" from the File menu, a malicious executable (e.g., explorer.exe) placed in the same directory as the opened PDF can be launched without further warning. This local attack vector requires user interaction but has low complexity, leading to high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 3.5.2CPE matchmatch criteria | cpe:2.3:a:sumatrapdfreader:sumatrapdf:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.