EUVD-2026-13661
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
3Description
Greenshot is an open source Windows screenshot utility. Versions 1.3.312 and below have untrusted executable search path / binary hijacking vulnerability that allows a local attacker to execute arbitrary code when the affected Windows application launches explorer.exe without using an absolute path. The vulnerable behavior is triggered when the user double-clicks the application’s tray icon, which opens the directory containing the most recent screenshot captured by the application. By placing a malicious executable with the same name in a location searched prior to the legitimate Windows binary, an attacker can gain code execution in the context of the application. This issue did not have a patch at the time of publication.
Analysis
Greenshot versions 1.3.312 and earlier contain an untrusted executable search path vulnerability (CWE-426) that allows local attackers with high privileges to achieve arbitrary code execution by hijacking the explorer.exe binary launch. When a user double-clicks the Greenshot tray icon to open the screenshot directory, the application launches explorer.exe using a relative path rather than an absolute path, enabling an attacker to plant a malicious executable in a prioritized search location. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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External POC / Exploit Code
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