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VulnerabilityPublished Updated

CVE-2024-9643: Four-Faith F3x36 · Active Debug Code

Affects Four-Faith F3x36Source CVE Database V5

0

Mentioned vulnerabilities

Not known to be exploited · public detection template (Nuclei) · CVSS 9.8 Critical.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
3.0% chance of exploitation in 30 days – higher than 87% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Feb 2025

  2. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  3. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  4. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Four-Faith F3x36Affected
  • =2.0.0
Fixed in–

AI-suggested

1. Immediately isolate Four-Faith F3x36 routers running firmware v2.0.0 from untrusted networks, especially the internet. 2. Restrict access to the administrative web interface using network segmentation, firewall rules, or VPNs limited to trusted personnel. 3. Monitor network traffic for unusual HTTP requests targeting the router's management interface and implement intrusion detection signatures where possible. 4. Disable or restrict remote management features if not essential. 5. Engage with Four-Faith support channels to obtain firmware updates or patches as they become available. 6. Consider replacing affected devices with alternative hardware from vendors with stronger security postures if patching is delayed. 7. Conduct thorough audits of network devices to identify any unauthorized configuration changes or signs of compromise. 8. Implement multi-factor authentication and strong credential management on all network devices to reduce risk from similar vulnerabilities. 9. Maintain up-to-date asset inventories to quickly identify affected devices across the organization. 10. Educate network administrators about this vulnerability and the importance of securing device management interfaces.

Description

The Four-Faith F3x36 router using firmware v2.0.0 is vulnerable to authentication bypass due to hard-coded credentials in the administrative web server. An attacker with knowledge of the credentials can gain administrative access via crafted HTTP requests. This issue appears similar to CVE-2023-32645.

References

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