{"id":"CVE-2021-33016","aliases":["EUVD-2021-19737","GHSA-pf82-6f4p-5p6c"],"status":"published","title":"KUKA KR C4 - Use of Hard-Coded Credentials","description":"An attacker can gain full access (read/write/delete) to sensitive folders due to hard-coded credentials on KUKA KR C4 control software for versions prior to 8.7 or any product running KSS.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01026,"percentile":0.63854,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-798"],"published":"2022-05-26T16:32:36Z","modified":"2026-06-17T03:54:01Z","products":[{"vendor":"kuka","product":"kr c4"},{"vendor":"kuka","product":"kr_c4_firmware"},{"vendor":"kuka","product":"kss"},{"vendor":"kuka","product":"kss (kuka.systemsoftware)"}],"references":[{"url":"https://www.cisa.gov/uscert/ics/advisories/icsa-21-208-01","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-33016"},{"url":"https://github.com/advisories/GHSA-pf82-6f4p-5p6c"}],"sources":{"cve":[{"id":"CVE-2021-33016","title":"KUKA KR C4 - Use of Hard-Coded Credentials","description":"An attacker can gain full access (read/write/delete) to sensitive folders due to hard-coded credentials on KUKA KR C4 control software for versions prior to 8.7 or any product running KSS.","status":"published","published":"2022-05-26T16:32:36Z","modified":"2025-04-16T16:18:06.589Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:33:10.555814Z"}],"euvd":[{"id":"EUVD-2021-19737","description":"An attacker can gain full access (read/write/delete) to sensitive folders due to hard-coded credentials on KUKA KR C4 control software for versions prior to 8.7 or any product running KSS.","status":"published","published":"2022-05-26T16:32:36Z","modified":"2025-04-16T16:18:06Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T20:52:24.329168Z"}],"ghsa":[{"id":"GHSA-pf82-6f4p-5p6c","title":"An attacker can gain full access (read/write/delete) to sensitive folders due to hard-coded...","description":"An attacker can gain full access (read/write/delete) to sensitive folders due to hard-coded credentials on KUKA KR C4 control software for versions prior to 8.7 or any product running KSS.","status":"published","published":"2022-05-27T00:00:45Z","modified":"2023-01-27T05:03:04Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:42:10.172069Z"}],"nvd":[{"id":"CVE-2021-33016","description":"An attacker can gain full access (read/write/delete) to sensitive folders due to hard-coded credentials on KUKA KR C4 control software for versions prior to 8.7 or any product running KSS.","status":"published","published":"2022-05-26T17:15:08.457Z","modified":"2026-06-17T03:54:01Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:07:06.501652Z"}]}}