Siemens SIMATIC CN 4100 up to 2.x hard-coded credentials

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Siemens SIMATIC CN 4100 up to 2.x. This issue affects some unknown processing. The manipulation results in hard-coded credentials. This vulnerability is known as CVE-2024-32740. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Siemens SIMATIC CN 4100 up to 2.x. Affected is an unknown function. The manipulation with an unknown input leads to a hard-coded credentials vulnerability. CWE is classifying the issue as CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at cert-portal.siemens.com. This vulnerability is traded as CVE-2024-32740 since 04/17/2024. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/20/2025). The MITRE ATT&CK project declares the attack technique as T1110.001.

Upgrading to version 3.0 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Hard-coded credentials
CWE: CWE-798 / CWE-259 / CWE-255
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SIMATIC CN 4100 3.0

Timelineinfo

04/17/2024 🔍
05/14/2024 +27 days 🔍
05/14/2024 +0 days 🔍
08/20/2025 +463 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-273900
Status: Confirmed

CVE: CVE-2024-32740 (🔍)
GCVE (CVE): GCVE-0-2024-32740
GCVE (VulDB): GCVE-100-264180

Entryinfo

Created: 05/14/2024 14:08
Updated: 08/20/2025 22:35
Changes: 05/14/2024 14:08 (64), 08/20/2025 22:35 (2)
Complete: 🔍
Cache ID: 216::103

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