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

Quick assessment

Affected
Tenda 300Mbps Wireless Router F3 and N300 Easy Setup Router
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tenda N300和Tenda F3都是中国腾达（Tenda）公司的产品。Tenda N300是一款路由器。Tenda F3是一款无线路由器。 Tenda N300和Tenda F3存在安全漏洞，该漏洞源于通过基于Web的管理界面传输使用可逆Base64编码的凭据，可能导致攻击者拦截网络流量并获取编码后的凭据，从而获得未经授权的访问。

AI Predicted 5.3 Difficulty: Easy EPSS 0.12% · P2
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I. Basic Information for CVE-2026-22080

Vulnerability Information
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Vulnerability Title
Insecure Transmission Vulnerability in Tenda Wireless Routers
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
敏感数据的明文传输
Source: CVE Program / CVE List V5
Vulnerability Title
Tenda N300和Tenda F3 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda N300和Tenda F3都是中国腾达（Tenda）公司的产品。Tenda N300是一款路由器。Tenda F3是一款无线路由器。 Tenda N300和Tenda F3存在安全漏洞，该漏洞源于通过基于Web的管理界面传输使用可逆Base64编码的凭据，可能导致攻击者拦截网络流量并获取编码后的凭据，从而获得未经授权的访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Tenda 300Mbps Wireless Router F3 and N300 Easy Setup Router F3 v3.0 Firmware V12.01.01.41 -

II. Public POCs for CVE-2026-22080

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III. Intelligence Information for CVE-2026-22080

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Vendor Advisories for CVE-2026-22080 (1)

Same Patch Batch · Tenda · 2026-01-09 · 4 CVEs total

CVE-2026-22082 Insecure Session ID Management Vulnerability in Tenda Wireless Routers
CVE-2026-22081 Cookie without HTTPOnly Flag Vulnerability in Tenda Wireless Routers
CVE-2026-22079 Cleartext Transmission Vulnerability in Tenda Wireless Routers

IV. Related Vulnerabilities

Same product: 300Mbps Wireless Router F3 and N300 Easy Setup Router
Same vendor: Tenda
Same weakness: CWE-319

V. Comments for CVE-2026-22080

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