Description
The Kaon AR2140X router improperly issues session cookies in responses to unauthenticated HTTP requests. This vulnerability allows a remote attacker to obtain a valid session identifier without providing credentials, resulting in an authentication bypass. With this access, the attacker can perform unauthorized actions on upgrade-related functionalities. These actions can be abused to force the router to issue GET requests to arbitrarily chosen domains.

This issue was identified in firmware versions up to 4.2.17. Status of newer versions remains unknown.
Published: 2026-09-28
Score: 5.3 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 28 Sep 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 28 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
Description The Kaon AR2140X router improperly issues session cookies in responses to unauthenticated HTTP requests. This vulnerability allows a remote attacker to obtain a valid session identifier without providing credentials, resulting in an authentication bypass. With this access, the attacker can perform unauthorized actions on upgrade-related functionalities. These actions can be abused to force the router to issue GET requests to arbitrarily chosen domains. This issue was identified in firmware versions up to 4.2.17. Status of newer versions remains unknown.
Title Improper Authentication in Kaon AR2140X
First Time appeared Kaon
Kaon ar2140
Weaknesses CWE-287
CPEs cpe:2.3:a:kaon:ar2140:*:*:*:*:*:*:*:*
Vendors & Products Kaon
Kaon ar2140
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published:

Updated: 2026-09-28T13:31:27.330Z

Reserved: 2026-06-08T14:40:31.450Z

Link: CVE-2026-52749

cve-icon Vulnrichment

Updated: 2026-09-28T13:23:56.576Z

cve-icon NVD

Status : Deferred

Published: 2026-09-28T13:17:22.007

Modified: 2026-09-28T16:31:16.073

Link: CVE-2026-52749

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-28T16:00:03Z

Weaknesses