CVE-2025-3947: Integer underflow during processing of short network packets in CDA FTEB responder
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-3947?
CVE-2025-3947 is classified as a high severity vulnerability due to its potential to allow input data manipulation.
How do I fix CVE-2025-3947?
To fix CVE-2025-3947, update Honeywell Experion PKS to a version later than 520.2 TCU9 or 530 TCU3.
What component is affected by CVE-2025-3947?
CVE-2025-3947 affects the Control Data Access (CDA) component of Honeywell Experion PKS.
What type of vulnerability is CVE-2025-3947?
CVE-2025-3947 is classified as an Integer Underflow vulnerability.
Can CVE-2025-3947 be exploited remotely?
Yes, CVE-2025-3947 can potentially be exploited by an attacker remotely, allowing for manipulation of input data.