CVEvulnerability

CVE-2021-21002

7.5 HIGH Published 2021-06-25 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-06-25
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-772

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 configurations

• phoenixcontact fl comserver uni 232\/422\/485 firmware (< 2.40) • phoenixcontact fl comserver uni 232\/422\/485-t firmware (< 2.40)

Related

Weakness · CWE (1)

  • CWE-772 Missing Release of Resource after Effective Lifetime weakness

References