CVE-2026-4436 HIGH

CVE-2026-4436: GPL Odorizers GPL750 Missing Authentication for Critical Function

Vendor Gpl Odorizers
Product GPL750 (XL4)
Weakness CWE-306 · Missing auth
Published April 9, 2026
Last update April 14, 2026
View on NVD All CVEs

CVSS base score

8.6/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 9, 2026 CVE published
April 14, 2026 Record updated