Authentication bypass using an alternate path or channel in MR-GM5L-S1 and MR-GM5A-L1 - CVE-2026-27842
Published: March 11, 2026
Vulnerability identifier: #VU123898
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-27842
CWE-ID: CWE-288
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Micro Research
Affected software:
MR-GM5L-S1
MR-GM5A-L1
MR-GM5L-S1
MR-GM5A-L1
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to the authentication bypass using an alternate path or channel. A remote attacker can bypass authentication and change the device configuration.
How to mitigate CVE-2026-27842
Install updates from vendor's website.