Advisories · Technology

Honeywell C300 PCNT05.

Every CVE that names Honeywell C300 PCNT05 among its affected products, newest first. Vendors and products are as the CNA wrote them; check the affected versions on each record.

CVE-2025-3947 CVE record

CVSS 8.2 High

Integer underflow during processing of short network packets in CDA FTEB responder
- Honeywell C300 PCNT02
- Honeywell C300 PCNT05
- Memory corruption
Not analysed yet 10 Jul 2025
CVE-2025-3946 CVE record

CVSS 8.2 High

Incorrect response generation during FTEB protocol processing
- Honeywell C300 PCNT02
- Honeywell C300 PCNT05
- CWE-430
Not analysed yet 10 Jul 2025
CVE-2025-2523 CVE record

CVSS 9.4 CriticalCritical · CVSS 9+

Lack of buffer clearing before reuse may result in incorrect system behavior.
- Honeywell C300 PCNT02
- Honeywell C300 PCNT05
- Memory corruption
Not analysed yet 10 Jul 2025
CVE-2025-2522 CVE record

CVSS 6.5 Medium

Lack of buffer clearing before reuse may result in incorrect system behavior.
- Honeywell C300 PCNT02
- Honeywell C300 PCNT05
- CWE-226
Not analysed yet 10 Jul 2025
CVE-2025-2521 CVE record

CVSS 8.6 High

Lack of indexes’ validation against buffer borders leads to remote code execution.
- Honeywell C300 PCNT02
- Honeywell C300 PCNT05
- Memory corruption
Not analysed yet 10 Jul 2025