CVE-2026-52748 (GCVE-0-2026-52748)

Vulnerability from cvelistv5 – Published: 2026-09-28 13:01 – Updated: 2026-09-28 13:31
VLAI
Title
Missing authentication for backup functionality in Kaon AR2140X
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.
Severity
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 13:19 UTC
CWE
  • CWE-306 - Missing authentication for critical function
Assigner
References
URL Tags
https://cert.pl/en/posts/2026/09/CVE-2026-52748 third-party-advisory
Impacted products
Vendor Product Version CPE status
Kaon AR2140 Affected: 0 , ≤ 4.2.17 (semver)
    cpe:2.3:a:kaon:ar2140:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-07-21 12:00
Credits
Sebastian Jeż
Show details on NVD website
To clipboard 

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