CVE-2024-39788: Wavlink AC3000 · External Control of System or Configuration Setting
Affects Wavlink AC3000Source CVE Database V5
Not known to be exploited · CVSS 9.1 Critical.
Data as of 26 Oct 2026, 14:05 UTC
- 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:HExploitation evidence
Disclosed: evidence found.
CVE published 14 Jan 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
- Immediately verify if your Wavlink AC3000 devices run the vulnerable firmware version M33A8.V5030.210505 and prioritize their remediation.
- 3. Restrict access to the router’s management interface by implementing network segmentation and firewall rules to limit HTTP management access to trusted internal IP addresses only. 4. Enforce strong authentication mechanisms and change default credentials to reduce the risk of credential compromise. 5. Disable FTP services if not required or restrict FTP configuration changes to highly trusted administrators. 6. Monitor network traffic for unusual HTTP POST requests targeting nas.cgi or abnormal FTP configuration changes. 7. Implement intrusion detection/prevention systems (IDS/IPS) with signatures or heuristics to detect exploitation attempts. 8. Conduct regular security audits and penetration testing focusing on router management interfaces. 9. Educate IT staff about the risks of configuration injection vulnerabilities and the importance of timely patching. 10. Consider deploying network access control (NAC) solutions to enforce device compliance and reduce exposure.
Description
Multiple external config control vulnerabilities exist in the nas.cgi set_ftp_cfg() 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 within the `ftp_name` POST parameter.