CVE-2020-15783

Description

A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC TDC CPU555 (All versions), SINUMERIK 840D sl (All versions). Sending multiple specially crafted packets to the affected devices could cause a Denial-of-Service on port 102. A cold restart is required to recover the service.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.15%
Vendor Advisory siemens.com
Affected: Siemens SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)
Affected: Siemens SIMATIC TDC CPU555
Affected: Siemens SINUMERIK 840D sl
Published at:
Updated at:

References

Link Tags
https://cert-portal.siemens.com/productcert/pdf/ssa-492828.pdf mitigation vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-15783?
CVE-2020-15783 has been scored as a high severity vulnerability.
How to fix CVE-2020-15783?
To fix CVE-2020-15783, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-15783 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-15783 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-15783?
CVE-2020-15783 affects Siemens SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants), Siemens SIMATIC TDC CPU555, Siemens SINUMERIK 840D sl.
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