CVE-2020-8858

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Moxa MGate 5105-MB-EIP firmware version 4.1. Authentication is required to exploit this vulnerability. The specific flaw exists within the DestIP parameter within MainPing.asp. 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 root. Was ZDI-CAN-9552.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-78

Affected software

VendorProductVersions
MoxaMGate 5105-MB-EIPfirmware version 4.1

References

Timeline

Published
Feb 14, 2020
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2020-8858: High severity, CVSS 8.8 | Vulnix