CVE-2025-3947
Published: Jul 10, 2025
Modified: Aug 4, 2025
CVSS v3.1
8.2
Description
The Honeywell Experion PKS contains an Integer Underflow vulnerability in the component Control Data Access (CDA). An attacker could potentially exploit this vulnerability, leading to Input Data Manipulation, which could result in improper integer data value checking during subtraction leading to a denial of service. Honeywell recommends updating to the most recent version of Honeywell Experion PKS:520.2 TCU9 HF1 and 530.1 TCU3 HF1. The affected Experion PKS products are C300 PCNT02, C300 PCNT05, FIM4, FIM8, UOC, CN100, HCA, C300PM, and C200E. The Experion PKS versions affected are from 520.1 through 520.2 TCU9 and from 530 through 530 TCU3.
| Vendor | Product | Versions |
|---|---|---|
Honeywell | C300 PCNT02 | affected 520.1 - <= 520.2 TCU9affected 530 - <= 530 TCU3 |
Honeywell | C300 PCNT05 | affected 520.1 - <= 520.2 TCU9affected 530 - <= 530 TCU3 |
Honeywell | FIM4 | affected 520.1 - <= 520.2 TCU9affected 530 - <= 530 TCU3 |
Honeywell | FIM8 | affected 520.1 - <= 520.2 TCU9affected 530 - <= 530 TCU3 |
Honeywell | UOC | affected 520.1 - <= 520.2 TCU9affected 530 - <= 530 TCU3 |
Honeywell | CN100 | affected 520.1 - <= 520.2 TCU9affected 530 - <= 530 TCU3 |
Honeywell | HCA | affected 520.1 - <= 520.2 TCU9affected 530 - <= 530 TCU3 |
Honeywell | C300PM | affected 520.1 - <= 520.2 TCU9affected 530 - <= 530 TCU3 |
Honeywell | C200E | affected 520.1 - <= 520.2 TCU9affected 530 - <= 530 TCU3 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now