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CVE-2024-39793VulnerabilityPublished Updated

CVE-2024-39793: 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, 06:26 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 2026-10-26.

What to do

AI-suggested

1. Immediate mitigation involves restricting access to the router’s management interface to trusted networks and users only, using network segmentation and firewall rules. 2. Enforce strong authentication mechanisms, including complex passwords and, if supported, multi-factor authentication to reduce the risk of credential compromise. 3. Monitor network traffic for unusual HTTP POST requests targeting nas.cgi or FTP configuration endpoints to detect potential exploitation attempts. 4. Disable or limit NAS and FTP services on the router if not required, reducing the attack surface. 5. 6. Implement network intrusion detection/prevention systems (IDS/IPS) with signatures tuned to detect exploitation attempts of this vulnerability. 7. Educate administrators on the risks of configuration injection vulnerabilities and the importance of securing device management interfaces. 8. Consider replacing affected devices with models from vendors with stronger security track records if timely patches are not forthcoming.

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_name` POST parameter.

References

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