CVE-2026-52749

MEDIUM CVSS 4.0: 5.3 EPSS 0.26%
Updated Sep 28, 2026
Kaon
Parameter Value
CVSS 5.3 (MEDIUM)
Affected Versions 0 — 4.2.17
Type CWE-287 (Improper Authentication)
Vendor Kaon
Public PoC No

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.

Attack Parameters

Attack Vector
Adjacent
Requires local network access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption

CVSS Vector v4.0

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Kaon Ar2140
cpe:2.3:a:kaon:ar2140:*:*:*:*:*:*:*:*
0 <= 4.2.17

Related Vulnerabilities