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Exploited vulnerability · CISA KEV

Is CVE-2024-12987 exploited? Yes: in CISA KEV since 15 May 2025

Gociux · DrayTek Vigor Routers · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2024-12987, DrayTek Vigor Routers OS Command Injection Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 15 May 2025, 139 days after it was published. It affects DrayTek Vigor Routers. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 15 May 2025
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity7.3CVSS 3.1 · high
US federal due5 Jun 2025BOD 22-01 deadline

What it is

DrayTek Vigor2960, Vigor300B, and Vigor3900 routers contain an OS command injection vulnerability due to an unknown function of the file /cgi-bin/mainfunction.cgi/apmcfgupload of the component web management interface.

VendorDrayTek (5 exploited CVEs in KEV)
ProductVigor Routers
VulnerabilityDrayTek Vigor Routers OS Command Injection Vulnerability
WeaknessCWE-78
Published27 Dec 2024
Added to KEV15 May 2025
Reported by (CNA)VulDB

What to do

  1. Check whether you run it. Look for Vigor Routers in your asset inventory, including appliances and cloud images. Stack check lists every exploited DrayTek CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 27 Dec 2024.
  4. Get told next time. Email alerts when CISA adds a CVE for DrayTek.

References

Questions

Is CVE-2024-12987 being exploited?

Yes. CISA added CVE-2024-12987 to the Known Exploited Vulnerabilities catalog on 15 May 2025, which means there is reliable evidence of exploitation in the wild.

Is CVE-2024-12987 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2024-12987?

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Check DrayTek's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Vigor Routers and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in May 2025 · DrayTek scorecard · act-now radar.

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