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CVE-2026-4436

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CVE-2026-4436

Published: Apr 9, 2026

Modified: Apr 14, 2026

PUBLISHED

CVSS v3.1

8.6

HIGH

Description

A low-privileged remote attacker can send Modbus packets to manipulate register values that are inputs to the odorant injection logic such that too much or too little odorant is injected into a gas line.

VendorProductVersions

GPL Odorizers

GPL750 (XL4)

affected
v1.0 - < v6.0

GPL Odorizers

GPL750 (XL4 Prime)

affected
v4.0 - < v6.0

GPL Odorizers

GPL Odorizers GPL750 (XL7)

affected
v13.0 - < v20.0

GPL Odorizers

GPL Odorizers GPL750 (XL7 Prime)

affected
v18.4 - < v20.0

Weaknesses (CWE)

CWE-306

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

High

Availability

None

References

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