What’s Vulnerable › Vulnerabilities

CVE-2024-53832

• Severity: medium (CVSS 4.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-12-10 · updated 2026-06-17
• Weakness: CWE-522

Description

A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V05.30). The affected devices contain a secure element which is connected via an unencrypted SPI bus. This could allow an attacker with physical access to the SPI bus to observe the password used for the secure element authentication, and then use the secure element as an oracle to decrypt all encrypted update files.

Affected products

• Siemens CPCI85 Central Processing/Communication: before V05.30 — fixed in V05.30

How to fix

Upgrade to a fixed version: Siemens CPCI85 Central Processing/Communication V05.30. Check the vendor advisory for mitigations.

References

• https://cert-portal.siemens.com/productcert/html/ssa-128393.html
• http://seclists.org/fulldisclosure/2025/Feb/19

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