{"id":"CVE-2022-24400","aliases":["EUVD-2022-29292","GHSA-6w2r-58cq-54q2"],"status":"published","title":"DCK pinning attack in TETRA","description":"A flaw in the TETRA authentication procecure allows a MITM adversary that can predict the MS challenge RAND2 to set session key DCK to zero.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:R/CR:H/IR:H/AR:H/MAV:A/MAC:H/MPR:N/MUI:N/MS:U/MC:H/MI:H/MA:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00274,"percentile":0.19966,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-639","CWE-807"],"published":"2023-10-19T09:33:28Z","modified":"2026-06-17T04:31:46Z","products":[{"vendor":"etsi","product":"tetra standard"},{"vendor":"midnightblue","product":"tetra\\"}],"references":[{"url":"https://tetraburst.com/","tags":["related","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-24400"},{"url":"https://tetraburst.com"},{"url":"https://github.com/advisories/GHSA-6w2r-58cq-54q2"}],"sources":{"cve":[{"id":"CVE-2022-24400","title":"DCK pinning attack in TETRA","description":"A flaw in the TETRA authentication procecure allows a MITM adversary that can predict the MS challenge RAND2 to set session key DCK to zero.","status":"published","published":"2023-10-19T09:33:28.366Z","modified":"2024-09-12T20:30:58.123Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:R/CR:H/IR:H/AR:H/MAV:A/MAC:H/MPR:N/MUI:N/MS:U/MC:H/MI:H/MA:H","level":"high","assessor":"cna"}],"cwes":["CWE-807"],"updated_at":"2026-11-02T14:34:34.940806Z"}],"euvd":[{"id":"EUVD-2022-29292","description":"A flaw in the TETRA authentication procecure allows a MITM adversary that can predict the MS challenge RAND2 to set session key DCK to zero.","status":"published","published":"2023-10-19T09:33:28Z","modified":"2024-09-12T20:30:58Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:R/CR:H/IR:H/AR:H/MAV:A/MAC:H/MPR:N/MUI:N/MS:U/MC:H/MI:H/MA:H","level":"high"}],"updated_at":"2026-11-03T00:55:56.381285Z"}],"ghsa":[{"id":"GHSA-6w2r-58cq-54q2","title":"A flaw in the TETRA authentication procecure allows a MITM adversary that can predict the MS...","description":"A flaw in the TETRA authentication procecure allows a MITM adversary that can predict the MS challenge RAND2 to set session key DCK to zero.","status":"published","published":"2023-10-19T12:30:23Z","modified":"2024-04-04T08:47:12Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-639","CWE-807"],"updated_at":"2026-11-02T14:57:01.229221Z"}],"nvd":[{"id":"CVE-2022-24400","description":"A flaw in the TETRA authentication procecure allows a MITM adversary that can predict the MS challenge RAND2 to set session key DCK to zero.","status":"published","published":"2023-10-19T10:15:08.93Z","modified":"2026-06-17T04:31:46.23Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-807","CWE-639"],"updated_at":"2026-11-02T14:07:39.811118Z"}]}}