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VulnerabilityPublished Updated

CVE-2024-39795: Wavlink AC3000 · External Control of System or Configuration Setting

Affects Wavlink AC3000Source CVE Database V5

0

Not known to be exploited · CVSS 9.1 Critical.

Data as of 26 Oct 2026, 12:54 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
1.5% chance of exploitation in 30 days – higher than 74% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Jan 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

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

    Not in CISA KEV and no source reports exploitation

  5. 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

AI-suggested

European organizations should implement the following specific mitigations: 1) Immediately restrict administrative HTTP access to the Wavlink AC3000 devices by limiting access to trusted IP addresses and enforcing strong authentication mechanisms such as multi-factor authentication. 2) Monitor router logs and network traffic for unusual configuration changes or HTTP POST requests targeting nas.cgi or proftpd-related endpoints. 3) Disable or restrict the proftpd service if not required, reducing the attack surface. 4) Regularly audit and rotate administrative credentials to prevent unauthorized access. 5) Segregate network segments to isolate vulnerable devices from critical infrastructure and sensitive data. 6) Engage with Wavlink for firmware updates or patches addressing this vulnerability and apply them promptly once available. 7) Employ network intrusion detection systems (NIDS) with signatures or heuristics to detect exploitation attempts targeting this vulnerability. 8) Educate IT staff about the risks of configuration injection vulnerabilities and the importance of secure device management. These measures go beyond generic advice by focusing on access control, monitoring, and network segmentation tailored to this specific vulnerability and device context.

Description

Multiple external config control vulnerabilities exist in the nas.cgi set_nas() proftpd functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to permission bypass. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.A configuration injection vulnerability exists in the `ftp_max_sessions` POST parameter.

References

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