VulnerabilityDeferred

CVE-2026-0774

WatchYourLAN Configuration Page Argument Injection Remote Code Execution Vulnerability.

HIGH 8.8EPSS 0.80%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.80%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.0: 8.8 HIGHCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.80% probability · 55th percentile
CISA KEV: Not listed
Weakness: CWE-88
Source: zdi-disclosures@trendmicro.com

References

https://www.zerodayinitiative.com/advisories/ZDI-26-039/

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.