CVE-2026-25792 Greenshot Vulnerable to OS Command Injection via ExternalCommand Plugin
Local attackers can execute arbitrary code by hijacking the executable search path when the application launches explorer.exe via tray icon interaction.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-25792?
CVE-2026-25792 is a medium-severity command injection vulnerability in greenshot, published on 20 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-426
Which versions are affected by CVE-2026-25792?
It affects 1 product.
Products include Getgreenshot Greenshot.
How do I fix CVE-2026-25792?
No fix has been published for CVE-2026-25792 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-25792 being exploited?
There is no known exploitation of CVE-2026-25792 in the wild and no public exploit code.
Other vulnerabilities in greenshot
Sources
Also known as GHSA-f8v9-7fph-fr2j.