CVE-2026-52748

Summary

The Kaon AR2140X router contains a vulnerability where the backup functionality is accessible without authentication. This allows an unauthenticated remote attacker to trigger a configuration backup and retrieve it in a form encrypted by a device-specific key. Triggering this function renders the router inoperable for a substantial period of time. 

This issue was identified in firmware versions up to 4.2.17. Status of newer versions remains unknown.

Affected Software

VendorProductVersion RangeStatus
KaonAR21400 <= 4.2.17affected

Weaknesses

  • CWE-306: CWE-306 Missing authentication for critical function

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References