CODESYS Installer TOCTOU Privilege Escalation

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-2364",
    "assignerOrgId": "270ccfa6-a436-4e77-922e-914ec3a9685c",
    "assignerShortName": "CERTVDE",
    "dateUpdated": "2026-03-10T07:22:42.658Z",
    "dateReserved": "2026-02-11T18:46:15.172Z",
    "datePublished": "2026-03-10T07:22:42.658Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "270ccfa6-a436-4e77-922e-914ec3a9685c",
        "shortName": "CERTVDE",
        "dateUpdated": "2026-03-10T07:22:42.658Z"
      },
      "title": "CODESYS Installer TOCTOU Privilege Escalation",
      "descriptions": [
        {
          "lang": "en",
          "value": "If a legitimate user confirms a self-update prompt or initiate an installation of a CODESYS Development System, a low privileged local attacker can gain elevated rights due to a TOCTOU vulnerability in the CODESYS installer.",
          "supportingMedia": [
            {
              "type": "text/html",
              "base64": false,
              "value": "If a legitimate user confirms a self-update prompt or initiate an installation of a CODESYS Development System, a low privileged local attacker can gain elevated rights due to a TOCTOU vulnerability in the CODESYS installer.<br>"
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "CODESYS",
          "product": "CODESYS Installer",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0.0.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "2.6.1.0"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition",
              "cweId": "CWE-367",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://certvde.com/de/advisories/VDE-2026-012"
        }
      ],
      "metrics": [
        {
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ],
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
            "attackVector": "LOCAL",
            "attackComplexity": "LOW",
            "privilegesRequired": "LOW",
            "userInteraction": "REQUIRED",
            "scope": "UNCHANGED",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "availabilityImpact": "HIGH",
            "baseScore": 7.3,
            "baseSeverity": "HIGH"
          }
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "David Ruscheweyh from SEW-EURODRIVE GmbH & Co KG",
          "user": "00000000-0000-4000-9000-000000000000",
          "type": "finder"
        }
      ]
    }
  }
}