Skip to content
OpenAdvisories
High · 8.8 CVE-2026-0774 EUVD-2026-4474GHSA-6rcp-wvh6-8qh8

WatchYourLAN Configuration Page Argument Injection Remote Code Execution Vulnerability

Published Jan 23, 2026 · Updated Jan 23, 2026 · Assigned by zdi

Description

WatchYourLAN Configuration Page Argument Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of WatchYourLAN. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of the arpstrs parameter. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-26708.

Affected products

VendorProductAffectedFixed
WatchYourLAN WatchYourLAN 2.1.2 —

References