Honeywell C300 PCNT02 Control Data Access sensitive information in resource not removed before reuse

Summaryinfo

A vulnerability marked as critical has been reported in Honeywell C300 PCNT02, C300 PCNT05, FIM4, FIM8, UOC, CN100, HCA, C300PM, C200E and Wireless Device Manager. This impacts an unknown function of the component Control Data Access. The manipulation leads to sensitive information in resource not removed before reuse. This vulnerability is documented as CVE-2025-2522. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Honeywell C300 PCNT02, C300 PCNT05, FIM4, FIM8, UOC, CN100, HCA, C300PM, C200E and Wireless Device Manager. It has been rated as critical. This issue affects an unknown code of the component Control Data Access. The manipulation with an unknown input leads to a sensitive information in resource not removed before reuse vulnerability. Using CWE to declare the problem leads to CWE-226. The product releases a resource such as memory or a file so that it can be made available for reuse, but it does not clear or "zeroize" the information contained in the resource before the product performs a critical state transition or makes the resource available for reuse by other entities. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The Honeywell Experion PKS and OneWireless WDM contains Sensitive Information in Resource vulnerability in the component Control Data Access (CDA). An attacker could potentially exploit this vulnerability, leading to a Communication Channel Manipulation, which could result in buffer reuse which may cause incorrect system behavior. Honeywell also 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, FIM4, FIM8, UOC, CN100, HCA, C300PM, and C200E. The Experion PKS versions affected are 520.1 before 520.2 TCU9 HF1 and 530 before 530 TCU3. The OneWireless WDM affected versions are 322.1 through 322.4 and 330.1 through 330.3.

The identification of this vulnerability is CVE-2025-2522 since 03/19/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

• Honeywell

Name

• C200E
• C300 PCNT02
• C300 PCNT05
• C300PM
• CN100
• FIM4
• FIM8
• HCA
• UOC
• Wireless Device Manager

License

• commercial

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