CVE-2020-35391: tenda f3_firmware Forced Browsing
Vulnerability summary
CVE-2020-35391 is a critical (CVSS 9.6) Forced Browsing vulnerability in tenda f3_firmware. EPSS estimates a 35.25% chance of exploitation in the next 30 days, higher than 98.4% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 01-01-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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 metrics
3 scores · 2 sources · 2 versions- NVDNIST6.5MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NDiffers
EPSS trend
Probability
35.25%
Chance of exploitation in the next 30 days
Percentile
98%
Versus all other CVEs
30-day change
No change 0.00 pp
From 35.25% on 22-09-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundTenda N300 F3 12.01.01.48 - Malformed HTTP Request Header Processing
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Tenda1 product
- f3_firmware12.01.01.48
1 vendor · 1 product