CVE-2026-4436

Published: Apr 9, 2026Modified: Jun 17, 2026

8.6

Vector

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

Exploitability: 3.9 / Impact: 4.0

Source: ics-cert@hq.dhs.gov (Secondary)

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.

Related CWEs

CWE-306

Missing Authentication for Critical Function

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

References (3)

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-099-02.json

Source: ics-cert@hq.dhs.gov

https://lincenergysystems-my.sharepoint.com/:f:/p/h_baer/IgDYaHIhXpyLQJvnKPd6b80TAUgV7Lp8qmVYBFUb0lmr7ak?e=JLeADm

Source: ics-cert@hq.dhs.gov

https://www.cisa.gov/news-events/ics-advisories/icsa-26-099-02

Source: ics-cert@hq.dhs.gov

Timeline

No history available yet.