CVE-2024-53832

mediumpriority · track · 0EPSS 0.003 · 21 %ileDEEUNLUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.29% (21st) EPSS
CVSS 4.6 · medium
Is it mine?
7 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · cert_bund · cisa_csaf_ot

EPSS · scored 2026-10-27

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.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • FixedCPCI85 Central Processing/Communicationsiemens_psirt

    Update to V05.30 or later version

  • FixedCPCI85 Central Processing/Communicationcisa_csaf_ot

    Update to V05.30 or later version

02

cvss

Technical severity, 0–10. One row per scoring source.

5.1
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.7–5.1

v3.14.6mediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · productcert@siemens.com DEexploitability 0.9 · impact 3.6
v3.14.6mediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · CISA US
v3.14.6mediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · Siemens ProductCERT DE
v3.14.6mediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · NCSC-NL NL
v4.05.1mediumCVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:Nsecondary · ENISA EU
v4.05.1mediumCVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · productcert@siemens.com DE
v4.01.7lowCVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-522USCWE-522USCWE-522USCWE-522US
05

affected products (7)

Products and version ranges known to be affected.

06

advisories (4)

Vendor and ecosystem advisories describing this.

  • NCSC-2024-0473Kwetsbaarheden verholpen in Siemens productenNL2024-12-10csaf · ncsc_nlNL

    Siemens heeft kwetsbaarheden verholpen in diverse producten als COMOS, RUGGEDCOM, SENTRON, SICAM, SIMATIC en TeamCenter.

  • SSA-128393SSA-128393: Firmware Decryption Vulnerability in SICAM A8000 CP-8031 and CP-80502024-12-10csaf · siemens_psirtDE

    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".

  • WID-SEC-W-2024-3655Siemens SICAM: Schwachstelle ermöglicht Offenlegung von InformationenDeutsch2024-12-10csaf · cert_bundDE

    Ein Angreifer mit physischem Zugriff kann eine Schwachstelle in Siemens SICAM ausnutzen, um Informationen offenzulegen.

  • ICSA-24-347-01Siemens CPCI85 Central Processing/Communication 2024-12-10icsa · cisa_csaf_otUS

    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".

07

also known as (3)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcert_bundcisa_csaf_otncsc_nlsiemens_psirtNVDCVE.orgMITRE
published 2024-12-10modified 2026-06-17
09

references (4)

External citations — patches, advisories, analysis.

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