CVE-2021-35030
Low
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.
SeverityLow
CVSS3.5
Exploit probability—
Product
Zyxel Gs1900-8 Firmware
PublishedJul 26, 2021
First seenJul 26, 2021
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- zyxel gs1900-8_firmware2.70 or later
- zyxel gs1900-8hp_firmware2.70 or later
- zyxel gs1900-10hp_firmware2.70 or later
- zyxel gs1900-16_firmware2.70 or later
- zyxel gs1900-24e_firmware2.70 or later
- zyxel gs1900-24ep_firmware2.70 or later
- zyxel gs1900-24_firmware2.70 or later
- zyxel gs1900-24hp_firmware2.70 or later
- zyxel gs1900-24hpv2_firmware2.70 or later
- zyxel gs1900-48_firmware2.70 or later
- zyxel gs1900-48hp_firmware2.70 or later
- zyxel gs1900-48hpv2_firmware2.70 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| zyxel gs1900-8_firmware | v < 2.70 | 2.70 |
| zyxel gs1900-8hp_firmware | v < 2.70 | 2.70 |
| zyxel gs1900-10hp_firmware | v < 2.70 | 2.70 |
| zyxel gs1900-16_firmware | v < 2.70 | 2.70 |
| zyxel gs1900-24e_firmware | v < 2.70 | 2.70 |
| zyxel gs1900-24ep_firmware | v < 2.70 | 2.70 |
| zyxel gs1900-24_firmware | v < 2.70 | 2.70 |
| zyxel gs1900-24hp_firmware | v < 2.70 | 2.70 |
| zyxel gs1900-24hpv2_firmware | v < 2.70 | 2.70 |
| zyxel gs1900-48_firmware | v < 2.70 | 2.70 |
| zyxel gs1900-48hp_firmware | v < 2.70 | 2.70 |
| zyxel gs1900-48hpv2_firmware | v < 2.70 | 2.70 |
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