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CVE-2026-1840— Missing authentication for critical function in Hubbell Aclara Metrum Cellular Web Interface

Quick assessment

Affected
Hubbell Aclara Metrum Cellular Web Interface
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.

Hubbell Aclara Metrum Cellular Web Interface是美国Hubbell公司的一款面向智能电表通信与远程管理的蜂窝网络Web配置与监控界面。 Hubbell Aclara Metrum Cellular Web Interface 2.1.0.105之前版本存在授权问题漏洞，该漏洞源于关键系统功能缺少身份验证控制，可能导致攻击者未经授权访问，暴露配置设置，修改操作参数并无限制触发系统重启，进而破坏正常功能并可能导致设备通信中断。

CVSS 7.5 · High EPSS 0.71% · P53

Affected Version Matrix 1

VendorProduct Version RangeStatus
Hubbell Aclara Metrum Cellular Web Interface < 2.1.0.105 affected
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I. Basic Information for CVE-2026-1840

Vulnerability Information
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Vulnerability Title
Missing authentication for critical function in Hubbell Aclara Metrum Cellular Web Interface
Source: CVE Program / CVE List V5
Vulnerability Description
The Aclara Metrum Cellular Web Interface is vulnerable to unauthorized access due to the absence of authentication controls on critical system functions. This weakness exposes essential configuration settings, allowing attackers to alter operational parameters and trigger system restarts without restriction. Such unauthorized changes can disrupt normal functionality and, if performed repeatedly, may lead to a loss of communications to the device.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Hubbell Aclara Metrum Cellular Web Interface 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hubbell Aclara Metrum Cellular Web Interface是美国Hubbell公司的一款面向智能电表通信与远程管理的蜂窝网络Web配置与监控界面。 Hubbell Aclara Metrum Cellular Web Interface 2.1.0.105之前版本存在授权问题漏洞，该漏洞源于关键系统功能缺少身份验证控制，可能导致攻击者未经授权访问，暴露配置设置，修改操作参数并无限制触发系统重启，进而破坏正常功能并可能导致设备通信中断。
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
Hubbell Aclara Metrum Cellular Web Interface 0 ~ 2.1.0.105 -

II. Public POCs for CVE-2026-1840

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III. Intelligence Information for CVE-2026-1840

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Vendor Advisories for CVE-2026-1840 (2)

IV. Related Vulnerabilities

Same weakness: CWE-306