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THREATINT
PUBLISHED

CVE-2025-3947

Integer underflow during processing of short network packets in CDA FTEB responder



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.

Reserved 2025-04-25 | Published 2025-07-10 | Updated 2025-07-10 | Assigner Honeywell


HIGH: 8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Problem types

CWE-191 Integer Underflow (Wrap or Wraparound)

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

Credits

Positive Technologies finder

References

process.honeywell.com/

cve.org (CVE-2025-3947)

nvd.nist.gov (CVE-2025-3947)

Download JSON

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https://cve.threatint.eu/CVE/CVE-2025-3947

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