CVE-2025-2521: Lack of indexes’ validation against buffer borders leads to remote code execution.
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
Event History
Frequently Asked Questions
What is the severity of CVE-2025-2521?
CVE-2025-2521 is classified as a moderate severity vulnerability due to its potential for buffer overreads.
How do I fix CVE-2025-2521?
To mitigate CVE-2025-2521, update Honeywell Experion PKS or OneWireless WDM to the latest version as recommended by Honeywell.
Which versions are affected by CVE-2025-2521?
CVE-2025-2521 affects Honeywell Experion PKS versions between 520.1 and 520.2 TCU9, and versions between 530 and 530 TCU3, as well as OneWireless WDM versions between 322.1 and 322.5, and between 330.1 and 330.4.
What is the impact of CVE-2025-2521?
The impact of CVE-2025-2521 could lead to improper index validation, which may allow an attacker to exploit buffer vulnerabilities.
Who is responsible for addressing CVE-2025-2521?
It is the responsibility of users and administrators of affected Honeywell products to apply the necessary updates to resolve CVE-2025-2521.