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.
History

Fri, 23 Jan 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 23 Jan 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Watchyourlan
Watchyourlan watchyourlan
Vendors & Products Watchyourlan
Watchyourlan watchyourlan

Fri, 23 Jan 2026 04:00:00 +0000

Type Values Removed Values Added
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.
Title WatchYourLAN Configuration Page Argument Injection Remote Code Execution Vulnerability
Weaknesses CWE-88
References
Metrics cvssV3_0

{'score': 8.8, 'vector': 'CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: zdi

Published: 2026-01-23T03:29:09.778Z

Updated: 2026-01-23T16:21:59.875Z

Reserved: 2026-01-08T22:50:40.949Z

Link: CVE-2026-0774

cve-icon Vulnrichment

Updated: 2026-01-23T16:21:54.596Z

cve-icon NVD

Status : Received

Published: 2026-01-23T04:16:04.650

Modified: 2026-01-23T04:16:04.650

Link: CVE-2026-0774

cve-icon Redhat

No data.