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CVE-2024-39787VulnerabilityPublished Updated

CVE-2024-39787: Wavlink AC3000 · Path Traversal

Affects Wavlink AC3000Source CVE Database V5

0

Not known to be exploited · CVSS 9.1 Critical.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
2.5% chance of exploitation in 30 days – higher than 85% 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 2026-10-25.

What to do

AI-suggested

1. Immediately restrict access to the router’s management interface to trusted internal networks and VPNs only, preventing exposure to untrusted networks. 2. Implement strong authentication mechanisms and monitor for unusual authenticated HTTP requests targeting nas.cgi endpoints. 3. Regularly audit and update router firmware; coordinate with Wavlink for official patches or advisories addressing CVE-2024-39787. 4. Employ network segmentation to limit the impact of a compromised router on critical systems. 5. Use intrusion detection/prevention systems (IDS/IPS) to detect anomalous directory traversal attempts or suspicious POST requests. 6. If firmware updates are unavailable, consider replacing vulnerable devices with models from vendors with timely security support. 7. Educate network administrators on the risks of directory traversal vulnerabilities and the importance of limiting authenticated access to management interfaces.

Description

Multiple directory traversal vulnerabilities exist in the nas.cgi add_dir() 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 directory traversal vulnerability exists within the `disk_part` POST parameter.

References

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