{"affected":[{"defaultStatus":"unaffected","product":"TcRouter.sys for Windows on x64 3.1.0.2364","source":"CNA: CERTVDE","vendor":"Beckhoff Automation","versions":[{"status":"affected","version":"3.1.0.2364"}]},{"defaultStatus":"unaffected","product":"TcRouter.sys for Windows on x64 <3.1.0.2365","source":"CNA: CERTVDE","vendor":"Beckhoff Automation","versions":[{"lessThan":"3.1.0.2365","status":"affected","version":"1.0.0","versionType":"semver"}]},{"defaultStatus":"unaffected","product":"TcRouter.sys for Windows on x86 3.1.0.2364","source":"CNA: CERTVDE","vendor":"Beckhoff Automation","versions":[{"status":"affected","version":"3.1.0.2364"}]},{"defaultStatus":"unaffected","product":"TcRouter.sys for Windows on x86 <3.1.0.2365","source":"CNA: CERTVDE","vendor":"Beckhoff Automation","versions":[{"lessThan":"3.1.0.2365","status":"affected","version":"1.0.0","versionType":"semver"}]},{"defaultStatus":"unaffected","product":"TwinCAT.XAR.Base.KM 3.16.29","source":"CNA: CERTVDE","vendor":"Beckhoff Automation","versions":[{"status":"affected","version":"3.16.29"}]},{"defaultStatus":"unaffected","product":"TwinCAT.XAR.Base.KM <3.18.1","source":"CNA: CERTVDE","vendor":"Beckhoff Automation","versions":[{"lessThan":"3.18.1","status":"affected","version":"1.0.0","versionType":"semver"}]}],"cveId":"CVE-2026-18767","cwes":["CWE-782"],"description":"A local low privileged attacker or process can access I/O ports via TcRouter.sys because of exposed IOCTL function calls resulting in a full compromise of the affected devices.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":8.5,"severity":"high","source":"CNA: CERTVDE","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":7.8,"severity":"high","source":"CNA: CERTVDE","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1794385175444,"publishedAt":1794385175444,"references":[{"source":"CNA: CERTVDE","tags":[],"url":"https://www.certvde.com/en/advisories/VDE-2026-087/"}],"remediation":[],"revision":"ad2abdaee6f8fd588e538d1239cac25e4a0cf1841a31a95600d2f8d95d6eea9b","sources":[{"modifiedAt":1794385175444,"name":"CNA: CERTVDE","retrievedAt":1794388155652,"url":"https://www.cve.org/CVERecord?id=CVE-2026-18767"}],"ssvc":null,"status":"published","title":"Insufficient IOCTL access control allows local access to I/O ports","updatedAt":1794388155652}