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CVE-2020-35391

51
FAUCET Score

CVE-2020-35391 affects Tenda N300 F3 12.01.01.48 devices, allowing remote attackers to obtain sensitive configuration information, potentially including administrative passwords, by directly requesting the RouterCfm.cfg file. This vulnerability has a CVSS score of 6.5 (Medium), indicating a network-adjacent attack vector with low complexity and high confidentiality impact, but no integrity or availability impact. While there is no evidence of active exploitation or Metasploit/Nuclei modules, an ExploitDB entry exists detailing a malformed HTTP request header processing method. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
12.01.01.48CPE matchmatch criteria
cpe:2.3:o:tenda:f3_firmware:12.01.01.48:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.6CRITICAL

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
35.00%
Probability of exploitation in next 30 days
EPSS Percentile
98.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-51317 · Apr 7, 2023
This CVE's current EPSS score of 0.3500 is in the 100th percentile among its peer group of 1,802 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/171773/Tenda-N300-F3-12.01.01.48-Header-Processing.html
medium.com / %40signalhilltech/tenda-n300-authentication-bypass-via-malformed-http-request-header-5b8744ca685e