CVE-2019-19281

Description

A vulnerability has been identified in SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V2.5 and < V20.8), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.5 and < V2.8), SIMATIC S7-1500 Software Controller (All versions >= V2.5 and < V20.8). Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a Denial-of-Service condition. The vulnerability can be triggered if specially crafted UDP packets are sent to the device. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise the device availability.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.63%
Vendor Advisory siemens.com
Affected: Siemens AG SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)
Affected: Siemens AG SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)
Affected: Siemens AG SIMATIC S7-1500 Software Controller
Published at:
Updated at:

References

Link Tags
https://cert-portal.siemens.com/productcert/pdf/ssa-750824.pdf vendor advisory
https://www.us-cert.gov/ics/advisories/icsa-20-042-11

Frequently Asked Questions

What is the severity of CVE-2019-19281?
CVE-2019-19281 has been scored as a high severity vulnerability.
How to fix CVE-2019-19281?
To fix CVE-2019-19281, 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-2019-19281 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-19281 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-19281?
CVE-2019-19281 affects Siemens AG SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants), Siemens AG SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants), Siemens AG SIMATIC S7-1500 Software Controller.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.