CVE-2025-2520
Description
The Honeywell Experion PKS contains an Uninitialized Variable in the common Epic Platform Analyzer (EPA) communications. An attacker could potentially exploit this vulnerability, leading to a Communication Channel Manipulation, which results in a dereferencing of an uninitialized pointer leading to a denial of service. Honeywell recommends updating to the most recent version of Honeywell Experion PKS: 520.2 TCU9 HF1and 530.1 TCU3 HF1. The affected Experion PKS products are C300 PCNT02, EHB, EHPM, ELMM, Classic ENIM, ETN, FIM4, FIM8, PGM, and RFIM. The Experion PKS versions affected are from 520.1 through 520.2 TCU9 and from 530 through 530 TCU3.
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 EHB | 520.1 ≤ v ≤ 520.2 TCU9, 530 ≤ v ≤ 530 TCU3 | — |
| Honeywell EHPM | 520.1 ≤ v ≤ 520.2 TCU9, 530 ≤ v ≤ 530 TCU3 | — |
| Honeywell ELMM | 520.1 ≤ v ≤ 520.2 TCU9, 530 ≤ v ≤ 530 TCU3 | — |
| Honeywell Classic ENIM | 520.1 ≤ v ≤ 520.2 TCU9, 530 ≤ v ≤ 530 TCU3 | — |
| Honeywell ETN | 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 PGM | 520.1 ≤ v ≤ 520.2 TCU9, 530 ≤ v ≤ 530 TCU3 | — |
| Honeywell RFIM | 520.1 ≤ v ≤ 520.2 TCU9, 530 ≤ v ≤ 530 TCU3 | — |
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