7.5
High
CVE-2021-21002 In Phoenix Contact FL COMSERVER UNI in versions < 2.40 a invalid Modbus exception response can lead to a temporary…
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 and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| FL COMSERVER 2.40 | earliest → < 2.40 | 2.40 |