CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2021-21002
High (7.5) in phoenixcontact. EPSS 1.0% chance of exploitation in the next 30 days.
In Phoenix Contact FL COMSERVER UNI in versions < 2.40 a invalid Modbus exception response can lead to a temporary denial of service.
Severity
- EPSS
- 1.0% chance of exploitation in the next 30 days; higher than 61% of CVEs (scores of 2026-10-31)
- CWE
- CWE-772
- Published
- Modified
- Record from
- the NVD, synced
Affected
- phoenixcontact:fl_comserver_uni_232\/422\/485-t_firmware
- phoenixcontact:fl_comserver_uni_232\/422\/485_firmware