CVE-2026-27842
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
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| 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 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
AI Powered Q&A
How can this vulnerability impact me? :
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.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know
Can you explain this vulnerability to me?
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.