CVE-2026-22080 HIGH

CVE-2026-22080: Insecure Transmission Vulnerability in Tenda Wireless Routers

Vendor Tenda
Product 300Mbps Wireless Router F3 and N300 Easy Setup Router
Weakness CWE-319 · Cleartext transmission
Published January 9, 2026
Last update January 9, 2026

CVSS base score

8.7/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

This vulnerability exists in Tenda wireless routers (300Mbps Wireless Router F3 and N300 Easy Setup Router) due to the transmission of credentials encoded using reversible Base64 encoding through the web-based administrative interface. An attacker on the same network could exploit this vulnerability by intercepting network traffic and capturing the Base64-encoded credentials. Successful exploitation of this vulnerability could allow the attacker to obtain sensitive information and gain unauthorized access to the targeted device.

Key dates

02Disclosure timeline

January 9, 2026 CVE published
January 9, 2026 Record updated