CVE-2024-32740

criticalpriority · track · 0OT risk · elevatedEPSS 0.007 · 53 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.70% (53rd) EPSS

CVSS 9.8 · critical

Is it mine?

6 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V3.0). The affected device contains undocumented users and credentials. An attacker could misuse the credentials to compromise the device locally or over the network.

remediations

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

A vendor fix is available.

FixedSIMATIC CN 4100siemens_psirt
Update to V3.0 or later version
FixedSIMATIC CN 4100cisa_csaf_ot
Update to V3.0 or later version

cvss

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

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · CISA US

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · productcert@siemens.com DEexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-798USCWE-798USCWE-798USCWE-798US

affected products (6)

Products and version ranges known to be affected.

SIMATIC CN 4100all versionscisa_csaf_otUS
Siemens SIMATIC CN 4100< V3.0cisa_csaf_otUS
Siemens SIMATIC CN 41000 → V3.0enisa_euvdEU
Siemens AG SIMATIC CN 4100≤ 3.0fstec_bduRU
siemens simatic cn 4100 firmware< 3.0nvdUScpe:2.3:o:siemens:simatic_cn_4100_firmware:*:*:*:*:*:*:*:*
Siemens SIMATIC CN 4100< V3.0siemens_psirtDE

advisories (2)

Vendor and ecosystem advisories describing this.

SSA-273900SSA-273900: Multiple Vulnerabilities in SIMATIC CN 4100 before V3.02024-05-14csaf · siemens_psirtDE
SIMATIC CN 4100 is vulnerable to use of hard coded credentials including root user and contains an unrestricted USB port that could be misused for insecure boot. Siemens has released a new version for SIMATIC CN 4100 and recommends to update to the latest version.
ICSA-24-137-06Siemens SIMATIC CN 41002024-05-14icsa · cisa_csaf_otUS
SIMATIC CN 4100 is vulnerable to use of hard coded credentials including root user and contains an unrestricted USB port that could be misused for insecure boot. Siemens has released a new version for SIMATIC CN 4100 and recommends to update to the latest version.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot nvd siemens_psirt NVD CVE.org MITRE

published 2024-05-14modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

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