What’s Vulnerable › Vulnerabilities

CVE-2019-10937

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-09-13 · updated 2026-06-17
• Weakness: CWE-20

Description

A vulnerability has been identified in SIMATIC TDC CP51M1 (All versions < V1.1.7). An attacker with network access to the device could cause a Denial-of-Service condition by sending a specially crafted UDP packet. The vulnerability affects the UDP communication of the device. The security vulnerability could be exploited without authentication. No user interaction is required to exploit this security vulnerability. Successful exploitation of the security vulnerability compromises availability of the targeted system. At the time of advisory publication no public exploitation of this security vulnerability was known.

Affected products

• Siemens AG SIMATIC TDC CP51M1: before 1.1.7 — fixed in 1.1.7

How to fix

Upgrade to a fixed version: Siemens AG SIMATIC TDC CP51M1 1.1.7. Check the vendor advisory for mitigations.

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-250618.pdf
• https://www.us-cert.gov/ics/advisories/icsa-19-253-05
• https://cert-portal.siemens.com/productcert/pdf/ssa-250618.pdf
• https://www.us-cert.gov/ics/advisories/icsa-19-253-05

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