CVE-2026-27842
Quick assessment
Affected
Micro Research Ltd. MR-GM5L-S1
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Micro Research MR-GM5L-S1和Micro Research MR-GM5A-L1都是加拿大Micro Research公司的一个嵌入式工业通信模块设备。 Micro Research MR-GM5L-S1和Micro Research MR-GM5A-L1存在安全漏洞，该漏洞源于身份验证绕过问题，可能导致攻击者绕过身份验证并更改设备配置。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-27842
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Micro Research MR-GM5L-S1和Micro Research MR-GM5A-L1 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Micro Research MR-GM5L-S1和Micro Research MR-GM5A-L1都是加拿大Micro Research公司的一个嵌入式工业通信模块设备。 Micro Research MR-GM5L-S1和Micro Research MR-GM5A-L1存在安全漏洞，该漏洞源于身份验证绕过问题，可能导致攻击者绕过身份验证并更改设备配置。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Micro Research Ltd. | MR-GM5L-S1 | firmware versions prior to v2.01.04N1_02 | - |
|
| Micro Research Ltd. | MR-GM5A-L1 | firmware versions prior to v2.01.04N1_02 | - |
|
II. Public POCs for CVE-2026-27842
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-27842 (1)
Same Patch Batch · Micro Research Ltd. · 2026-03-11 · 3 CVEs total
| CVE-2026-24448 | Micro Research MR-GM5L-S1和Micro Research MR-GM5A-L1 信任管理问题漏洞 | |
| CVE-2026-20892 | Micro Research MR-GM5L-S1和Micro Research MR-GM5A-L1 代码注入漏洞 |
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V. Comments for CVE-2026-27842
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