Vulnerability record · CVE-2018-7502 · published 23 March 2018

CVE-2018-7502: Beckhoff twincat improper input validation vulnerability

Beckhoff · Twincat

Kernel drivers in Beckhoff TwinCAT 3.1 Build 4022.4, TwinCAT 2.11 R3 2259, and TwinCAT 3.1 lack proper validation of user-supplied pointer values. An attacker who is able to execute code on the target may be able to exploit this vulnerability to obtain SYSTEM privileges.

7.8 CVSS 3.0 High EPSS 0.56% · top 55.8% CWE-822 · CWE-822CWE-20 · Improper input validation

7.8CVSS 3.0 base score, v2 7.2

0.56%EPSS exploitation probability, 30 days

NoNot in CISA KEV

2Affected product versions listed by NVD

8References

17 Jun 2026Last modified by NVD

Description

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Twincat Beckhoff

Twincat C\+\+ Beckhoff

References

Link	Tags
http://www.securityfocus.com/bid/103487	Third Party AdvisoryVDB Entry
https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2018-001.pdf	Vendor Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-18-081-02	MitigationThird Party AdvisoryUS Government Resource
https://srcincite.io/advisories/src-2018-0007/
http://www.securityfocus.com/bid/103487	Third Party AdvisoryVDB Entry
https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2018-001.pdf	Vendor Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-18-081-02	MitigationThird Party AdvisoryUS Government Resource
https://srcincite.io/advisories/src-2018-0007/

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-7502), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.