Resource exhaustion in Siemens products - CVE-2019-19281

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Main Vulnerability Database Vulnerabilities #VU25266

Resource exhaustion in Siemens products - CVE-2019-19281

Published: February 12, 2020


Vulnerability identifier: #VU25266
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-19281
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to uncontrolled resource consumption. A remote attacker can send a specially crafted UDP packets, trigger resource exhaustion and perform a denial of service (DoS) attack.


Affected software

SIMATIC ET 200SP Open Controller CPU 1515SP PC2
SIMATIC S7-1500 Software Controller
SIMATIC S7-1500 CPU

How to mitigate CVE-2019-19281

Install updates from vendor's website.

SIMATIC S7-1500 CPU - update to 2.8
SIMATIC S7-1500 Software Controller - update to 20.8

External References

Related Security Bulletins