CVE-2021-35031 Information

Description

A vulnerability in the TFTP client of Zyxel GS1900 series firmware XGS1210 series firmware and XGS1250 series firmware which could allow an authenticated LAN user to execute arbitrary OS commands via the GUI of the vulnerable device.

CVSS Vector

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

Reference

https://www.zyxel.com/support/Zyxel_security_advisory_for_OS_command_injection_vulnerabilities_of_switches.shtml

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.0

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