Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-21002

In Phoenix Contact FL COMSERVER UNI in versions < 2.40 a invalid Modbus exception response can lead to a temporary denial of service.

Published

2021-06-25T19:15:08.587

Last Modified

2024-11-21T05:47:22.927

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-772
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System phoenixcontact fl_comserver_uni_232\/422\/485_firmware < 2.40 Yes
Hardware phoenixcontact fl_comserver_uni_232\/422\/485 - No
Operating System phoenixcontact fl_comserver_uni_232\/422\/485-t_firmware < 2.40 Yes
Hardware phoenixcontact fl_comserver_uni_232\/422\/485-t - No
References