CVE-2026-1840

HIGH

CVSS v3.1: 7.5 · EPSS: 0.0073 (49.4 percentile)

NetworkNo privilegesNo user interactionMissing Authentication

Source data as of:

At a glance

Severity
HIGH
CVSS
7.5 v3.1 · NVD
EPSS
0.0073 (49.4 percentile) · FIRST.org
CISA KEV
No
Type
Missing Authentication · NVD CWE
Attack conditions (CVSS vector)
NetworkNo privilegesNo user interaction · Source: NVD Vector
Published
2026-06-24 · Modified: 2026-06-25

CVSS / EPSS / KEV

CVSS v3.1 7.5 / 10 HIGH Source: NVD
CVSS v4.0 8.7 / 10 HIGH Source: NVD
EPSS 0.0073 49.4 percentile Source: FIRST.org
CISA KEV No Source: CISA

Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources

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.

Record details

CVE ID
CVE-2026-1840
CVSS (v3.1)
7.5 (HIGH)
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability subscore
3.9
Impact subscore
3.6
EPSS
0.0073 (49.4 percentile) — 2026-06-26
CISA KEV
No
Weakness (CWE)
CWE-306
Affected configurations (CPE)
0
Published
2026-06-24
Modified
2026-06-25
Status
Deferred

References

Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.