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.

PUBLISHED Reserved 2025-03-19 | Published 2025-07-10 | Updated 2025-08-04 | Assigner Honeywell

Problem types

CWE-457 Use of Uninitialized Variable

Product status

Credits

Demid Uzenkov and Kirill Kutaev (Positive Technologies) finder

References

process.honeywell.com/

cve.org (CVE-2025-2520)

nvd.nist.gov (CVE-2025-2520)

Download JSON