CVE-2026-27842
CRITICAL
2026-03-11
[email protected]
9.8
CVSS 3.0
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CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Lifecycle Timeline
2
Analysis Generated
Mar 12, 2026 - 22:06 vuln.today
CVE Published
Mar 11, 2026 - 06:17 nvd
CRITICAL 9.8
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.
Analysis
Auth bypass in MR-GM5L-S1/MR-GM5A-L1 devices.
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Remediation
Within 24 hours: Inventory all MR-GM5L-S1 and MR-GM5A-L1 devices in your environment and isolate critical instances to a segregated network segment. Within 7 days: Implement network-level access controls (firewall rules, VLANs) to restrict device management interfaces to authorized administrator networks only, and enable enhanced logging on affected devices. …
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Priority Score
49
Low
Medium
High
Critical
KEV: 0
EPSS: +0.1
CVSS: +49
POC: 0
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External POC / Exploit Code
Leaving vuln.today
Destination URL
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