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CVE-2023-49252

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-01-09 · updated 2026-06-17
• Weakness: CWE-20

Description

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V2.7). The affected application allows IP configuration change without authentication to the device. This could allow an attacker to cause denial of service condition.

Affected products

• Siemens SIMATIC CN 4100: before 2.7 — fixed in 2.7

How to fix

Upgrade to a fixed version: Siemens SIMATIC CN 4100 2.7. Check the vendor advisory for mitigations.

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-777015.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-777015.pdf

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