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CVE-2026-27842

CRITICAL CVSS 4.0: 9.3 EPSS 0.10%
Updated Mar 11, 2026
Authentication
Parameter Value
CVSS 9.3 (CRITICAL)
Type CWE-288 (Authentication Bypass Using Alternate Path)
Vendor Authentication
Public PoC No

Authentication bypass issue exists in MR-GM5L-S1 and MR-GM5A-L1, which may allow an attacker to bypass authentication and change the device configuration.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
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
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0