Description
In Phoenix Contact FL COMSERVER UNI in versions < 2.40 a invalid Modbus exception response can lead to a temporary denial of service.
References (1)
Core 1
Core References
Third Party Advisory x_refsource_confirm
https://cert.vde.com/en-us/advisories/vde-2021-022
Scores
CVSS v3
7.5
EPSS
0.0096
EPSS Percentile
56.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-772
Status
published
Products (2)
phoenixcontact/fl_comserver_uni_232\/422\/485-t_firmware
< 2.40
phoenixcontact/fl_comserver_uni_232\/422\/485_firmware
< 2.40
Published
Jun 25, 2021
Tracked Since
Feb 18, 2026