CVE-2024-53832
MEDIUMSiemens CPCI85 Central Processing/Communication < V05.30 - Insufficiently Protected Credentials via Unencrypted SPI Bus
Title source: llmDescription
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.
References (2)
Core 2
Core References
Vendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-128393.html
Mailing List
http://seclists.org/fulldisclosure/2025/Feb/19
Scores
CVSS v3
4.6
EPSS
0.0029
EPSS Percentile
20.1%
Attack Vector
PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-522
Status
published
Products (1)
Siemens/CPCI85 Central Processing/Communication
< V05.30
Published
Dec 10, 2024
Tracked Since
Feb 18, 2026