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CVE-2026-1840 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:9.1 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://aclara.my.site.com/AclaraConnect/s/	[email protected]	Permission RequiredVendor
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-174-07.json	[email protected]	AdvisoryRemedy
https://www.cisa.gov/news-events/ics-advisories/icsa-26-174-07	[email protected]	AdvisoryRemedy

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-306	Missing Authentication for Critical Function	[email protected]

Affected Products

Product	Versions
Hubbell Aclara Metrum Cellular Web Interface	< v2.1.0.105
CPE No CPEs found in CPE dictionary for this product. Remediation Upgrade: v2.1.0.105moderate efforthttps://aclara.my.site.com/AclaraConnect/s/ Mitigation:low effort Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs).

Product

Versions

Hubbell Aclara Metrum Cellular Web Interface

< v2.1.0.105

CPE

No CPEs found in CPE dictionary for this product.

Remediation

Upgrade: v2.1.0.105moderate efforthttps://aclara.my.site.com/AclaraConnect/s/
Mitigation:low effort
Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs).

Change History

2 change records found show changes

Date	Action	Recorded By
Jun 25, 2026	CVE Modified	CISA-ADP
Jun 24, 2026	New CVE Received	[email protected]