CVE-2026-23512 is an Untrusted Search Path vulnerability affecting SumatraPDF versions 3.5.2 and earlier on Windows. When a user triggers the "Advanced Options" setting, SumatraPDF attempts to execute notepad.exe without specifying its full path, allowing a malicious executable named "notepad.exe" placed in the application's installation directory to achieve arbitrary code execution. This vulnerability has a CVSS score of 7.8 (High), indicating a local attack vector with low complexity, requiring user interaction, and potentially leading to high impact on confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 10 mentions, suggesting awareness among security researchers.
| 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:C/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.