What’s Vulnerable › Vulnerabilities

CVE-2021-46304

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-08-10 · updated 2026-06-17
• Weakness: CWE-284

Description

A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions), CP-8000 MASTER MODULE WITH I/O -40/+70°C (All versions), CP-8021 MASTER MODULE (All versions), CP-8022 MASTER MODULE WITH GPRS (All versions). The component allows to activate a web server module which provides unauthenticated access to its web pages. This could allow an attacker to retrieve debug-level information from the component such as internal network topology or connected systems.

Affected products

• Siemens Cp-8000 Master Module With I/O -25/+70 Firmware: all versions
• Siemens Cp-8000 Master Module With I/O -40/+70 Firmware: all versions
• Siemens Cp-8021 Master Module Firmware: all versions
• Siemens Cp-8022 Master Module With Gprs Firmware: all versions

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-185638.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-185638.pdf

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