CVE-2026-27842
Received Received - Intake

Authentication Bypass in MR-GM5L-S1 and MR-GM5A-L1 Devices

Publication date: 2026-03-11

Last updated on: 2026-03-11

Assigner: JPCERT/CC

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.

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Meta Information

Published
2026-03-11
Last Modified
2026-03-11
Generated
2026-07-06
AI Q&A
2026-03-11
EPSS Evaluated
2026-07-05
NVD
CVE-2026-27842
EUVD
EUVD-2026-11101

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
micro_research mr-gm5l-s1 to 2.01.04N1_02 (exc)
micro_research mr-gm5a-l1 to 2.01.04N1_02 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-288 The product requires authentication, but the product has an alternate path or channel that does not require authentication.

Attack-Flow Graph

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Impact Analysis

The impact of this vulnerability is severe because an attacker can gain unauthorized access to the affected devices and modify their configurations.

This could lead to disruption of device functionality, potential exposure of sensitive information, or use of the device for malicious purposes.

Compliance Impact

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Detection Guidance

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Executive Summary

This vulnerability is an authentication bypass issue found in the devices MR-GM5L-S1 and MR-GM5A-L1. It allows an attacker to bypass the normal authentication process, which means they can gain unauthorized access to the device.

Once the attacker bypasses authentication, they can change the device configuration without permission.

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