CVE-2021-38395

Honeywell Experion PKS and ACE Controllers Injection

State: Published
Severity: 9.1 Critical
Published: Oct 28, 2022
Updated: Apr 16, 2025
Reserved: Aug 10, 2021

Description

Honeywell Experion PKS C200, C200E, C300, and ACE controllers are vulnerable to improper neutralization of special elements in output, which may allow an attacker to remotely execute arbitrary code and cause a denial-of-service condition.

Scores

CVSS	Score	Vector	Source
3.1	9.1 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H	icscert

Weaknesses

CWE-74 Injection

Affected Products

Product	Versions
Experion PKSHoneywell	C200Affected C200EAffected C300Affected ACE controllersAffected

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-278-04
https://www.honeywellprocess.com/library/support/notifications/Customer/SN2021-02-22-01-Experion-C300-CCL.pdf

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