{"id":"CVE-2021-25910","aliases":["EUVD-2021-12781","GHSA-c375-qwv9-rx4w"],"status":"published","title":"ZIV AUTOMATION 4CCT vulnerable to improper authentication","description":"Improper Authentication vulnerability in the cookie parameter of ZIV AUTOMATION 4CCT-EA6-334126BF allows a local attacker to perform modifications in several parameters of the affected device as an authenticated user.","severity":{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00466,"percentile":0.40668,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2021-01-29T13:22:29Z","modified":"2026-06-17T03:42:33Z","products":[{"vendor":"ziv automation","product":"4cct-ea6-334126bf"},{"vendor":"zivautomation","product":"4cct-ea6-334126bf_firmware"}],"references":[{"url":"https://www.incibe-cert.es/en/early-warning/ics-advisories/4cct-vulnerable-improper-authentication","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-25910"},{"url":"https://github.com/advisories/GHSA-c375-qwv9-rx4w"}],"sources":{"cve":[{"id":"CVE-2021-25910","title":"ZIV AUTOMATION 4CCT vulnerable to improper authentication","description":"Improper Authentication vulnerability in the cookie parameter of ZIV AUTOMATION 4CCT-EA6-334126BF allows a local attacker to perform modifications in several parameters of the affected device as an authenticated user.","status":"published","published":"2021-01-29T13:22:29.031Z","modified":"2024-09-16T16:43:41.774Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:32:59.802172Z"}],"euvd":[{"id":"EUVD-2021-12781","description":"Improper Authentication vulnerability in the cookie parameter of ZIV AUTOMATION 4CCT-EA6-334126BF allows a local attacker to perform modifications in several parameters of the affected device as an authenticated user.","status":"published","published":"2021-01-29T13:22:29Z","modified":"2024-09-16T16:43:41Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:55:48.659023Z"}],"ghsa":[{"id":"GHSA-c375-qwv9-rx4w","title":"Improper Authentication vulnerability in the cookie parameter of ZIV AUTOMATION 4CCT-EA6-334126BF...","description":"Improper Authentication vulnerability in the cookie parameter of ZIV AUTOMATION 4CCT-EA6-334126BF allows a local attacker to perform modifications in several parameters of the affected device as an authenticated user.","status":"published","published":"2022-05-24T17:40:37Z","modified":"2023-01-29T05:05:33Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:45:49.336023Z"}],"nvd":[{"id":"CVE-2021-25910","description":"Improper Authentication vulnerability in the cookie parameter of ZIV AUTOMATION 4CCT-EA6-334126BF allows a local attacker to perform modifications in several parameters of the affected device as an authenticated user.","status":"published","published":"2021-01-29T14:15:12.467Z","modified":"2026-06-17T03:42:33.87Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.3,"vector":"AV:A/AC:L/Au:N/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:06:49.660551Z"}]}}