CVE-2026-1840: Hubbell Aclara Metrum Cellular Web Interface

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

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.

Affected products

• Hubbell Aclara Metrum Cellular Web Interface: before 2.1.0.105 (fixed in 2.1.0.105)

Published 2026-06-24. Last modified 2026-06-25.