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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00726.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Hubbell Aclara Metrum Cellular Web Interface unaffected
Version Status Constraints
0 affected < 2.1.0.105

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

Hubbell encourages users to update their firmware to v2.1.0.105 in order to minimize network exposure and ensure that devices are not accessible from the Internet. Users can download version 2.1.0.105 from AclaraConnect https://aclara.my.site.com/AclaraConnect/s/ .

Workaround

No workaround given by the vendor.

References
Link Providers
https://aclara.my.site.com/AclaraConnect/s/ cve-icon
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-174-07.json cve-icon
https://www.cisa.gov/news-events/ics-advisories/icsa-26-174-07 cve-icon
History

Thu, 25 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 24 Jun 2026 20:30:00 +0000

Type Values Removed Values Added
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.
Title Missing authentication for critical function in Hubbell Aclara Metrum Cellular Web Interface
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published:

Updated: 2026-06-25T13:14:07.184Z

Reserved: 2026-02-03T16:50:25.254Z

Link: CVE-2026-1840

cve-icon Vulnrichment

Updated: 2026-06-25T13:14:02.971Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-24T21:45:15Z

Weaknesses