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
2026-06-16
AI Q&A
2026-03-11
EPSS Evaluated
2026-06-14
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.
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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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Mitigation Strategies

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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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