CVE-2019-19789
6.5 · MEDIUMOverview
CVE-2019-19789 is a medium-severity vulnerability affecting codesys plcwinnt. It was published on December 20, 2019 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
3S-Smart CODESYS SP Realtime NT before V2.3.7.28, CODESYS Runtime Toolkit 32 bit full before V2.4.7.54, and CODESYS PLCWinNT before V2.4.7.54 allow a NULL pointer dereference.
Remediation
Check the references section for vendor advisories and patches from codesys. Update plcwinnt to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| codesys | plcwinnt | >= 0, < 2.4.7.54 | Affected |
| codesys | runtime_toolkit | >= 0, < 2.4.7.54 | Affected |
| codesys | sp_realtime_nt | >= 0, < 2.3.7.28 | Affected |
Frequently Asked Questions
What is CVE-2019-19789?
CVE-2019-19789 is a medium-severity vulnerability affecting codesys plcwinnt. It was published on December 20, 2019 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2019-19789?
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2019-19789?
Check the references section for vendor advisories and patches from codesys. Update plcwinnt to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-19789?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-19789 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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