CVE-2026-27842 PUBLISHED

Assigner: jpcert
Reserved: 10.03.2026 Published: 11.03.2026 Updated: 11.03.2026

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.

Metrics

CVSS 3.0
CVSS 4.0

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.0

CVSS Vector: 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
CVSS Score: 9.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Micro Research Ltd.
Product	MR-GM5L-S1
Versions	Version firmware versions prior to v2.01.04N1_02 is affected

Vendor	Micro Research Ltd.
Product	MR-GM5A-L1
Versions	Version firmware versions prior to v2.01.04N1_02 is affected

CVE-2026-27842 PUBLISHED

Metrics

Product Status

References

Problem Types