{"cve":"CVE-2018-7502","nvd":{"published":"2018-03-23T17:29:00.213","modified":"2026-06-17T02:03:15.467","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-20","CWE-822"],"references":["http://www.securityfocus.com/bid/103487","https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2018-001.pdf","https://ics-cert.us-cert.gov/advisories/ICSA-18-081-02","https://srcincite.io/advisories/src-2018-0007/","http://www.securityfocus.com/bid/103487"],"products":["beckhoff:twincat","beckhoff:twincat_c\\+\\+"],"source":"nvd","synced_at":"2026-10-19T20:48:50.842038930+00:00"},"epss":{"cve":"CVE-2018-7502","score":0.00557,"percentile":0.46432,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}