CVE-2021-45033
HIGHSiemens CP-8000 and CP-8022 Master Modules < 16.20 - Hard-coded Credentials in Debug Port
Title source: llmDescription
A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions < V16.20), CP-8000 MASTER MODULE WITH I/O -40/+70°C (All versions < V16.20), CP-8021 MASTER MODULE (All versions < V16.20), CP-8022 MASTER MODULE WITH GPRS (All versions < V16.20). An undocumented debug port uses hard-coded default credentials. If this port is enabled by a privileged user, an attacker aware of the credentials could access an administrative debug shell on the affected device.
References (1)
Core 1
Core References
Patch, Vendor Advisory x_refsource_misc
https://cert-portal.siemens.com/productcert/pdf/ssa-324998.pdf
Scores
CVSS v3
8.8
EPSS
0.0028
EPSS Percentile
51.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-798
Status
published
Products (4)
siemens/cp-8000_master_module_with_i\/o_-25\/\+70_firmware
< 16.20
siemens/cp-8000_master_module_with_i\/o_-40\/\+70_firmware
< 16.20
siemens/cp-8021_master_module_firmware
< 16.20
siemens/cp-8022_master_module_with_gprs_firmware
< 16.20
Published
Jan 11, 2022
Tracked Since
Feb 18, 2026