CVE-2020-35391

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.

CVSS v3.1

6.5 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1

9.6 CRITICALCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS v2.0

3.3 LOWAV:A/AC:L/Au:N/C:P/I:N/A:N

EPSS

35.00% chance of exploitation in the next 30 days, 98th percentile

Published

2021-01-01

Updated

2024-08-04

Proof-of-concept exploits (3)

• 4d000/Tenda-F3-V43★ · 2025-09-17
• H454NSec/CVE-2020-353912★ · 2023-03-10
• dumitory-dev/CVE-2020-35391-POC2★ · 2023-02-05

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/51317

References

• CVE Record
• NVD entry

Related

• CVE-2023-42793
• CVE-2017-14942
• CVE-2020-35388
• CVE-2020-35395
• CVE-2020-35378
• CVE-2020-35396