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CVE-2021-35030

Published: Jul 26, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-79
NVD MITRE
3.5CVSSLOW
EPSS Score
0.3%
Top 81.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Breakdown

AV:AAC:LPR:HUI:NS:UC:NI:LA:L
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-79

Affected Products

GS1900-8 FirmwareZyxelNetworking Infrastructure
gs1900-8 firmwarezyxelNetworking Infrastructure
gs1900-8hp firmwarezyxelNetworking Infrastructure
gs1900-10hp firmwarezyxelNetworking Infrastructure
gs1900-16 firmwarezyxelNetworking Infrastructure
zyxelcommercialTWNetworking Infrastructureaka zyxel communications corp.
and 8 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

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

Timeline

Published
Jul 26, 2021
Last Updated
Nov 21, 2024

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