PatchSiren

PatchSiren cyber security CVE debrief

CVE-2020-15415 DrayTek CVE debrief

CVE-2020-15415 is a DrayTek Multiple Vigor Routers OS command injection vulnerability that CISA added to its Known Exploited Vulnerabilities catalog on 2024-09-30. KEV inclusion means there is evidence of active exploitation, so organizations using affected DrayTek Vigor routers should treat this as a high-priority exposure. CISA’s guidance is to apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Vendor
DrayTek
Product
Multiple Vigor Routers
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2024-09-30
Original CVE updated
2024-09-30
Advisory published
2024-09-30
Advisory updated
2024-09-30

Who should care

Network administrators, security teams, and managed service providers operating DrayTek Vigor routers, especially any environment that exposes router management or related services.

Technical summary

The vulnerability is identified as an OS command injection issue in DrayTek Multiple Vigor Routers. The supplied source corpus does not include a CVSS score or detailed exploit mechanics, but CISA’s KEV listing indicates the issue is known to be exploited in the wild. The CISA entry directs defenders to follow vendor mitigation guidance or stop using the product if no mitigation is available.

Defensive priority

Immediate. KEV-listed vulnerabilities are prioritized for remediation because they are known to be exploited. Review exposure, apply available vendor mitigations without delay, and remove or replace affected devices if mitigation is not available.

Recommended defensive actions

  • Check whether any DrayTek Vigor routers in your environment match the affected product family referenced in the KEV entry.
  • Follow the vendor’s mitigation or advisory guidance referenced by CISA for this vulnerability.
  • If no effective mitigation is available for a deployed device, discontinue use of the product and plan replacement.
  • Reduce exposure of router administration and management interfaces to the internet and limit access to trusted administrative networks.
  • Verify remediation status across all sites, including branch office and managed customer deployments.

Evidence notes

The supplied CISA KEV source identifies the vulnerability as "DrayTek Multiple Vigor Routers OS Command Injection Vulnerability," lists vendor/project as DrayTek / Multiple Vigor Routers, and sets dateAdded to 2024-09-30 with dueDate 2024-10-21. The KEV metadata also states: "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable." The corpus provides official references to the CVE record, NVD detail page, and CISA KEV catalog, but no CVSS score or additional technical specifics.

Official resources

CVE publishedAt in the supplied corpus is 2024-09-30T00:00:00.000Z, which is the date to use for this debrief. Do not infer the vulnerability’s original discovery date from the 2020 CVE identifier.