CVE-2026-25880

The record

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.

Affected packages

Related vulnerabilities

• CVE-2026-0307 Multiple local privilege escalation vulnerabilities in the Palo Alto Networks… CWE-426
• CVE-2026-81192 `OpenTelemetry.Resources.Host` NuGet package, which provides OpenTelemetry resource… CWE-426
• CVE-2026-80159 Acrobat Reader is affected by an Untrusted Search Path vulnerability that could result in… CWE-426
• CVE-2026-84226 OpenVPN version 2.5.0 through 2.6.22 and 2.7_alpha1 through 2.7.6 on Windows allows local… CWE-426
• CVE-2026-82862 Hulumi versions before v1.3.2 resolve the threat-model helper script from an unsafe root… CWE-426
• CVE-2026-75768 Substance3D - Painter is affected by an Untrusted Search Path vulnerability that could… CWE-426
• CVE-2026-78680 NLTK versions before 3.10.3 fail to use validated absolute paths when invoking the… CWE-426
• CVE-2026-16869 IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to execute… CWE-426