Description
In Phoenix Contact FL COMSERVER UNI in versions < 2.40 a invalid Modbus exception response can lead to a temporary denial of service.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Phoenix Contact | FL COMSERVER | UNI 232/422/485 (2313452) – < 2.40, UNI 232/422/485-T (2904817) – < 2.40 | 2.40 |
Advisories 1
- VDE-2021-022 PHOENIX CONTACT: Security Advisory for FL COMSERVER UNI CERT@VDE · May 14, 2025