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LOW · 3.5

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-s...

Vulnerability 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 Score

3.5

LOW

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW

Affected Products

VendorProductVersions
ZyxelGs1900-8 Firmware< 2.70
ZyxelGs1900-8-
ZyxelGs1900-8Hp Firmware< 2.70
ZyxelGs1900-8Hp-
ZyxelGs1900-10Hp Firmware< 2.70
ZyxelGs1900-10Hp-
ZyxelGs1900-16 Firmware< 2.70
ZyxelGs1900-16-
ZyxelGs1900-24E Firmware< 2.70
ZyxelGs1900-24E-
ZyxelGs1900-24Ep Firmware< 2.70
ZyxelGs1900-24Ep-
ZyxelGs1900-24 Firmware< 2.70
ZyxelGs1900-24-
ZyxelGs1900-24Hp Firmware< 2.70
ZyxelGs1900-24Hp-
ZyxelGs1900-24Hpv2 Firmware< 2.70
ZyxelGs1900-24Hpv2-
ZyxelGs1900-48 Firmware< 2.70
ZyxelGs1900-48-

Related Weaknesses (CWE)

CWE-79

References

FAQ

What is CVE-2021-35030?

CVE-2021-35030 is a vulnerability with a CVSS score of 3.5 (LOW). 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-s...

How severe is CVE-2021-35030?

CVE-2021-35030 has been rated LOW with a CVSS base score of 3.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-35030?

Check the references section above for vendor advisories and patch information. Affected products include: Zyxel Gs1900-8 Firmware, Zyxel Gs1900-8, Zyxel Gs1900-8Hp Firmware, Zyxel Gs1900-8Hp, Zyxel Gs1900-10Hp Firmware.