Cross-site Scripting Flaw in Zyxel GS1900 Series Switches
CVE-2021-35030

3.5LOW

Key Information:

Vendor

Zyxel
Status
Gs1900-8 Firmware
Vendor
CVE Published:
27 July 2021

What is CVE-2021-35030?

A vulnerability in the CGI program of the Zyxel GS1900-8 switch firmware (V2.60) allows authenticated local users to exploit improperly sanitized packet contents. This flaw facilitates the execution of cross-site scripting (XSS) attacks via specially crafted LLDP packets, posing risks to network integrity and user data.

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Affected Version(s)

GS1900-8 Firmware 2.60

References

https://www.zyxel.com/support/Zyxel_security_advisory_for...
x_refsource_MISC

CVSS V3.1

Score:
3.5
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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