{"id":"CVE-2022-32138","aliases":["EUVD-2022-53379","GHSA-qg68-h8vr-3vc5"],"status":"published","title":"CODESYS runtime system prone to denial of service due to Unexpected Sign Extension","description":"In multiple CODESYS products, a remote attacker may craft a request which may cause an unexpected sign extension, resulting in a denial-of-service condition or memory overwrite.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01219,"percentile":0.6904,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-194"],"published":"2022-06-24T07:46:21Z","modified":"2026-06-17T04:46:44Z","products":[{"vendor":"codesys","product":"plcwinnt"},{"vendor":"codesys","product":"runtime toolkit"},{"vendor":"codesys","product":"runtime_toolkit"}],"references":[{"url":"https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=17139\u0026token=ec67d15a433b61c77154166c20c78036540cacb0\u0026download=","tags":["x_refsource_CONFIRM","x_transferred","Mitigation","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-32138"},{"url":"https://github.com/advisories/GHSA-qg68-h8vr-3vc5"}],"sources":{"cve":[{"id":"CVE-2022-32138","title":"CODESYS runtime system prone to denial of service due to Unexpected Sign Extension","description":"In multiple CODESYS products, a remote attacker may craft a request which may cause an unexpected sign extension, resulting in a denial-of-service condition or memory overwrite.","status":"published","published":"2022-06-24T07:46:21.898Z","modified":"2024-09-17T01:47:02.194Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-194"],"updated_at":"2026-11-02T14:34:36.917505Z"}],"euvd":[{"id":"EUVD-2022-53379","description":"In multiple CODESYS products, a remote attacker may craft a request which may cause an unexpected sign extension, resulting in a denial-of-service condition or memory overwrite.","status":"published","published":"2022-06-24T07:46:21Z","modified":"2024-09-17T01:47:02Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:28:46.561775Z"}],"ghsa":[{"id":"GHSA-qg68-h8vr-3vc5","title":"In multiple CODESYS products, a remote attacker may craft a request which may cause an unexpected...","description":"In multiple CODESYS products, a remote attacker may craft a request which may cause an unexpected sign extension, resulting in a denial-of-service condition or memory overwrite.","status":"published","published":"2022-06-25T00:01:01Z","modified":"2023-01-27T05:05:21Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-194"],"updated_at":"2026-11-02T14:42:40.834674Z"}],"nvd":[{"id":"CVE-2022-32138","description":"In multiple CODESYS products, a remote attacker may craft a request which may cause an unexpected sign extension, resulting in a denial-of-service condition or memory overwrite.","status":"published","published":"2022-06-24T08:15:07.837Z","modified":"2026-06-17T04:46:44.773Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-194"],"updated_at":"2026-11-02T14:07:22.613788Z"}]}}