CVE-2021-35030 Information

Description

A vulnerability was found in the CGI program in Zyxel GS1900-8 firmware version V2.60 that did not properly sterilize packet contents and could allow an authenticated local user to perform a cross-site scripting (XSS) attack via a crafted LLDP packet.

CVSS Vector

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

Reference

https://www.zyxel.com/support/Zyxel_security_advisory_for_XSS_vulnerability_of_GS1900_series_switches.shtml

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

4.3

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