CVE-2018-7502

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.

• CWE-822
• CWE-20

• http://www.securityfocus.com/bid/103487Third Party Advisory, VDB Entry
• https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2018-001.pdfVendor Advisory
• https://ics-cert.us-cert.gov/advisories/ICSA-18-081-02Mitigation, Third Party Advisory, US Government Resource
• https://srcincite.io/advisories/src-2018-0007/
• http://www.securityfocus.com/bid/103487Third Party Advisory, VDB Entry
• https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2018-001.pdfVendor Advisory
• https://ics-cert.us-cert.gov/advisories/ICSA-18-081-02Mitigation, Third Party Advisory, US Government Resource
• https://srcincite.io/advisories/src-2018-0007/

Published

Mar 23, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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