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THREATINT
PUBLISHED

CVE-2025-2520

Dereferencing of an uninitialized pointer leads to denial of service.



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.

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


HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-457 Use of Uninitialized Variable

Product status

Default status
unaffected

520.1
affected

530
affected

Default status
unaffected

520.1
affected

530
affected

Default status
unaffected

520.1
affected

530
affected

Default status
unaffected

520.1
affected

530
affected

Default status
unaffected

520.1
affected

530
affected

Default status
unaffected

520.1
affected

530
affected

Default status
unaffected

520.1
affected

530
affected

Default status
unaffected

520.1
affected

530
affected

Default status
unaffected

520.1
affected

530
affected

Default status
unaffected

520.1
affected

530
affected

Credits

Positive Technologies finder

References

process.honeywell.com/

cve.org (CVE-2025-2520)

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

Download JSON

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https://cve.threatint.eu/CVE/CVE-2025-2520

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