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VulnerabilityPublished

CVE-2024-51260: DrayTek Vigor3900 · Command Injection

Source CVE Database V5

0

Not known to be exploited · CVSS 9.8 Critical.

Data as of 26 Oct 2026, 13:47 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 49% 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 31 Oct 2024

  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

  1. Immediate mitigation should include restricting access to the router’s management interface by implementing strict network segmentation and firewall rules to limit exposure to trusted IP addresses only.
  2. Disable remote management features if not required, especially access to the mainfunction.cgi endpoint.
  3. Monitor network traffic and device logs for unusual or unauthorized requests targeting mainfunction.cgi or invoking acme_process.
  4. Employ intrusion detection/prevention systems (IDS/IPS) with signatures or heuristics capable of detecting command injection attempts.
  5. Contact DrayTek support or monitor official channels for firmware updates or patches addressing CVE-2024-51260 and apply them promptly once available.
  6. As an interim measure, consider deploying web application firewalls (WAF) to filter and block malicious payloads targeting the vulnerable CGI endpoint.
  7. Conduct regular security assessments and penetration testing on network infrastructure to identify and remediate similar vulnerabilities proactively.
  8. Educate network administrators on the risks of exposed management interfaces and enforce strong authentication and access control policies.

Description

DrayTek Vigor3900 1.5.1.3 allows attackers to inject malicious commands into mainfunction.cgi and execute arbitrary commands by calling the acme_process function.

References

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