Vulnerability Intelligence Report
CVE-2021-35030
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.
No Active Exploit Signals
CVSS Base Score
3.5
LOW
Exploitability:1.0
Impact Score:2.6
EPSS Probability:0.27%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-79 ↗CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Zyxel | GS1900-8 Firmware | 2.60 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.268%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Zyxel Corporation · Vendor · Taiwan |
| Reserved | 2021-06-17T00:00:00 |
| Published | 2021-07-26T11:20:40 |
| Patch Date | 2021-07-27 |
| Last Updated | 2024-09-17T01:46:12 |
Community Chatter & Buzz