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CVE-2018-6530 D-Link CVE debrief

CVE-2018-6530 is a D-Link multiple-routers OS command injection vulnerability that CISA added to its Known Exploited Vulnerabilities catalog on 2022-09-08. CISA also notes vendor guidance stating that the fix under CVE-2018-20114 properly patches this KEV entry. Because CISA lists known ransomware campaign use, affected D-Link routers should be prioritized for vendor-recommended remediation or removal from service if they are end-of-life.

Vendor
D-Link
Product
Multiple Routers
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-09-08
Original CVE updated
2022-09-08
Advisory published
2022-09-08
Advisory updated
2022-09-08

Who should care

Organizations that still operate affected D-Link routers, especially security operations teams, network administrators, and asset owners responsible for edge-device patching and lifecycle management.

Technical summary

The available source corpus identifies CVE-2018-6530 as an OS command injection issue in D-Link multiple routers. CISA’s KEV entry ties the vulnerability to active exploitation and references a D-Link advisory stating that the CVE-2018-20114 fix properly addresses this KEV item. The record does not provide additional technical detail beyond the vulnerability class and affected product family.

Defensive priority

High. CISA has placed this CVE in the KEV catalog and marks known ransomware campaign use, which makes prompt remediation or compensating action important even though a CVSS score is not provided in the supplied corpus.

Recommended defensive actions

  • Apply the vendor-recommended update path referenced by D-Link for the CVE-2018-20114 fix, as noted by CISA.
  • If the affected router model is end-of-life, disconnect it if it is still in use.
  • Inventory D-Link router assets to confirm whether any deployed devices are in scope for CVE-2018-6530.
  • Validate that remediation was completed before CISA’s KEV due date of 2022-09-29.
  • Monitor for any signs of unauthorized device administration or configuration changes on affected routers.

Evidence notes

This debrief is limited to the supplied source corpus and official links. Core evidence comes from the CISA KEV source item, which names the vulnerability, dates, vendor, and remediation note; the CVE.org and NVD links are included as official record references. No exploit mechanics or unverified technical claims are included.

Official resources

Publicly disclosed vulnerability; added to CISA KEV on 2022-09-08 with remediation due 2022-09-29.