CVE-2026-27842 | BDVDB-2026-319972 Detail

Micro ResearchMR-GM5L-S1

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.

Impact#

Per CVSS v3.0: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-288 Authentication Bypass Using an Alternate Path or Channel

References#

Exploit#

No public exploit known

History#

Version 12026-03-11Record published in the CVE List.

Published

Published: 2026-03-11
Last modified: 2026-03-11

Vendor information

Vendor: Micro Research
Product: MR-GM5L-S1

All Micro Research vulnerabilities

Score

9.3 Critical

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 54.1.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Authentication Issues

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
firmware versions prior to v2.01.04N1_02
Fixed
Not stated

Scoring System

CVSS v4.0

9.3 Critical

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Attack Requirements	None
Privileges Required	None
User Interaction	None
Vulnerable System Confidentiality	High
Vulnerable System Integrity	High
Vulnerable System Availability	High
Subsequent System Confidentiality	None
Subsequent System Integrity	None
Subsequent System Availability	None

CVSS v3.1

Not available

CVSS v3.0

9.8 Critical

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

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

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).