Siemens SIMATIC CN 4100 up to 2.6 default 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, which was classified as very critical, was found in Siemens SIMATIC CN 4100 up to 2.6. This affects an unknown part. The manipulation results in default credentials. This vulnerability was named CVE-2023-49621. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Siemens SIMATIC CN 4100 up to 2.6 (SCADA Software). It has been classified as very critical. Affected is some unknown functionality. The manipulation with an unknown input leads to a default credentials vulnerability. CWE is classifying the issue as CWE-1392. The product uses default credentials (such as passwords or cryptographic keys) for potentially critical functionality. 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 < V2.7). The "intermediate installation" system state of the affected application uses default credential with admin privileges. An attacker could use the credentials to gain complete control of the affected device.

The weakness was presented 01/09/2024 as ssa-777015. The advisory is available at cert-portal.siemens.com. This vulnerability is traded as CVE-2023-49621 since 11/28/2023. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 12/16/2025).

Upgrading to version 2.7 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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 (Siemens AG): 🔍

CVSSv2info

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

Exploitinginfo

Class: Default credentials
CWE: CWE-1392
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 2.7

Timelineinfo

11/28/2023 🔍
01/09/2024 +42 days 🔍
01/09/2024 +0 days 🔍
12/16/2025 +707 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-777015
Status: Confirmed

CVE: CVE-2023-49621 (🔍)
GCVE (CVE): GCVE-0-2023-49621
GCVE (VulDB): GCVE-100-250098

Entryinfo

Created: 01/09/2024 12:55
Updated: 12/16/2025 21:07
Changes: 01/09/2024 12:55 (50), 12/16/2025 21:07 (15)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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