ICSA-24-347-01: Siemens CPCI85 Central Processing/Communication
CISA advisory · released 2024-12-10
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 2, 2025-05-06 (final)
CISA's summary
Summary: The SICAM A8000 CP-8031 and CP-8050 devices are affected by a vulnerability that could allow an attacker with physical access to the device to decrypt the firmware. Siemens has released new firmware and hardware versions for the affected products and recommends to update to the latest versions. Both the firmware and the hardware update are required to fix the vulnerability. For details see the section "Additional Information".
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | CPCI85 Central Processing/Communication | <V05.30 |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2024-53832 — CVE-2024-53832 · CWE-522
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.
Acknowledgments, as the advisory lists them
- Steffen Robertz, Gerhard Hechenberger, Stefan Viehböck, Constantin Schieber-Knöbl, SEC Consult Vulnerability Lab: reporting this vulnerability to Siemens.
The advisory's legal notice
The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.
Sources
DeSpy's copy of this version is dated 2026-09-28.
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