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Description

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.

PUBLISHED Reserved 2026-03-10 | Published 2026-03-11 | Updated 2026-03-11 | Assigner jpcert




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

CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

Authentication Bypass Using an Alternate Path or Channel

Product status

firmware versions prior to v2.01.04N1_02
affected

firmware versions prior to v2.01.04N1_02
affected

References

www.mrl.co.jp/download/security/JVNVU98103854.pdf

jvn.jp/en/vu/JVNVU98103854/

cve.org (CVE-2026-27842)

nvd.nist.gov (CVE-2026-27842)

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