CVE-2021-38399 HIGH

CVE-2021-38399: Honeywell Experion PKS and ACE Controllers Relative Path Traversal

Vendor Honeywell
Product Experion PKS
Weakness CWE-23
Published October 28, 2022
Last update April 16, 2025

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Honeywell Experion PKS C200, C200E, C300, and ACE controllers are vulnerable to relative path traversal, which may allow an attacker access to unauthorized files and directories.

Key dates

02Disclosure timeline

October 28, 2022 CVE published
April 16, 2025 Record updated