CVE-2021-45033

HIGH
8.8
CVSS Score
Published: January 11, 2022 at 11:27 AM UTC
Updated: June 17, 2026 at 04:13 AM UTC
8 products affected across 1 vendorCp 8021 Master Module FirmwareCp 8000 Master Module with I/o 25/+70 FirmwareCp 8022 Master Module with Gprs Firmware

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Severity
HIGH8.8
Exploit prediction
EPSS 0.9%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Affected range stops below 16.20, so it looks safe — our inference, not a vendor statement
siemens-cp-8000-master-module-with-i-o-25-70 (same device)
Affected range stops below 16.20, so it looks safe — our inference, not a vendor statement
siemens-cp-8000-master-module-with-i-o-40-70 (same device)
Affected range stops below 16.20, so it looks safe — our inference, not a vendor statement
siemens-cp-8021-master-module (same device)
Affected range stops below 16.20, so it looks safe — our inference, not a vendor statement
siemens-cp-8022-master-module-with-gprs (same device)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-798

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