CVE-2025-2521

Summary

The Honeywell Experion PKS and OneWireless WDM contains a Memory Buffer vulnerability in the component Control Data Access (CDA). An attacker could potentially exploit this vulnerability, leading to an Overread Buffers, which could result in improper index validation against buffer borders 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.

Affected Software

VendorProductVersion RangeStatus
HoneywellC300 PCNT02520.1 <= 520.2 TCU9affected
HoneywellC300 PCNT02530 <= 530 TCU3affected
HoneywellC300 PCNT05520.1 <= 520.2 TCU9affected
HoneywellC300 PCNT05530 <= 530 TCU3affected
HoneywellFIM4520.1 <= 520.2 TCU9affected
HoneywellFIM4530 <= 530 TCU3affected
HoneywellFIM8520.1 <= 520.2 TCU9affected
HoneywellFIM8530 <= 530 TCU3affected
HoneywellUOC520.1 <= 520.2 TCU9affected
HoneywellUOC530 <= 530 TCU3affected
HoneywellCN100520.1 <= 520.2 TCU9affected
HoneywellCN100530 <= 530 TCU3affected
HoneywellHCA520.1 <= 520.2 TCU9affected
HoneywellHCA530 <= 530 TCU3affected
HoneywellC300PM520.1 <= 520.2 TCU9affected
HoneywellC300PM530 <= 530 TCU3affected
HoneywellC200E520.1 <= 520.2 TCU9affected
HoneywellC200E530 <= 530 TCU3affected
HoneywellWireless Device Manager322.1 <= 322.4affected
HoneywellWireless Device Manager330.1 <= 330.3affected

Weaknesses

  • CWE-119: CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References