Vulnerability 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.
CVSS Score
8.6
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Related Weaknesses (CWE)
References
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-09
- https://lincenergysystems-my.sharepoint.com/:f:/p/h_baer/IgDYaHIhXpyLQJvnKPd6b80
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-099-02
FAQ
What is CVE-2026-4436?
CVE-2026-4436 is a vulnerability with a CVSS score of 8.6 (HIGH). 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 ...
How severe is CVE-2026-4436?
CVE-2026-4436 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-4436?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.