CVE-2025-3946
Description
The Honeywell Experion PKS and OneWireless WDM contains a Deployment of Wrong Handler vulnerability in the component Control Data Access (CDA). An attacker could potentially exploit this vulnerability, leading to Input Data Manipulation, which could result in incorrect handling of packets leading to remote code execution. Honeywell recommends updating to the most recent version of Honeywell Experion PKS:520.2 TCU9 HF1 and 530.1 TCU3 HF1 and OneWireless: 322.5 and 331.1. 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. The OneWireless WDM affected versions are 322.1 through 322.4 and 330.1 through 330.3.
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Honeywell C300 PCNT02 | 520.1 ≤ v ≤ 520.2 TCU9, 530 ≤ v ≤ 530 TCU3 | — |
| Honeywell C300 PCNT05 | 520.1 ≤ v ≤ 520.2 TCU9, 530 ≤ v ≤ 530 TCU3 | — |
| Honeywell FIM4 | 520.1 ≤ v ≤ 520.2 TCU9, 530 ≤ v ≤ 530 TCU3 | — |
| Honeywell FIM8 | 520.1 ≤ v ≤ 520.2 TCU9, 530 ≤ v ≤ 530 TCU3 | — |
| Honeywell UOC | 520.1 ≤ v ≤ 520.2 TCU9, 530 ≤ v ≤ 530 TCU3 | — |
| Honeywell CN100 | 520.1 ≤ v ≤ 520.2 TCU9, 530 ≤ v ≤ 530 TCU3 | — |
| Honeywell HCA | 520.1 ≤ v ≤ 520.2 TCU9, 530 ≤ v ≤ 530 TCU3 | — |
| Honeywell C300PM | 520.1 ≤ v ≤ 520.2 TCU9, 530 ≤ v ≤ 530 TCU3 | — |
| Honeywell C200E | 520.1 ≤ v ≤ 520.2 TCU9, 530 ≤ v ≤ 530 TCU3 | — |
| Honeywell Wireless Device Manager | 322.1 ≤ v ≤ 322.4, 330.1 ≤ v ≤ 330.3 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.