CVE-2020-35391: Tenda f3 Firmware

Medium severity, CVSS 6.5. EPSS: 35.2% chance of exploitation in the next 30 days.

Tenda N300 F3 12.01.01.48 devices allow remote attackers to obtain sensitive information (possibly including an http_passwd line) via a direct request for cgi-bin/DownloadCfg/RouterCfm.cfg, a related issue to CVE-2017-14942. NOTE: the vulnerability report may suggest that either a ? character must be placed after the RouterCfm.cfg filename, or that the HTTP request headers must be unusual, but it is not known why these are relevant to the device's HTTP response behavior.

Affected products

• Tenda f3 Firmware: version 12.01.01.48 only

Published 2021-01-01. Last modified 2026-06-17.