{"id":"CVE-2020-20221","aliases":["EUVD-2020-13008","GHSA-m2h9-c2v8-hj79"],"status":"published","title":"Mikrotik RouterOs before 6.44.6 (long-term tree) suffers from an uncontrolled resource...","description":"Mikrotik RouterOs before 6.44.6 (long-term tree) suffers from an uncontrolled resource consumption vulnerability in the /nova/bin/cerm process. An authenticated remote attacker can cause a Denial of Service due to overloading the systems CPU.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02907,"percentile":0.87074,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2021-07-21T13:49:07Z","modified":"2026-06-17T03:02:53Z","products":[{"vendor":"mikrotik","product":"routeros"}],"references":[{"url":"https://cwe.mitre.org/data/definitions/400.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://seclists.org/fulldisclosure/2020/May/30","tags":["x_refsource_MISC","x_transferred","Mailing List","Third Party Advisory"]},{"url":"https://seclists.org/fulldisclosure/2021/May/1","tags":["x_refsource_MISC","x_transferred","Exploit","Mailing List","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-20221"},{"url":"https://github.com/advisories/GHSA-m2h9-c2v8-hj79"}],"sources":{"cve":[{"id":"CVE-2020-20221","description":"Mikrotik RouterOs before 6.44.6 (long-term tree) suffers from an uncontrolled resource consumption vulnerability in the /nova/bin/cerm process. An authenticated remote attacker can cause a Denial of Service due to overloading the systems CPU.","status":"published","published":"2021-07-21T13:49:07Z","modified":"2024-08-04T14:15:29.022Z","updated_at":"2026-11-02T14:35:45.763329Z"}],"euvd":[{"id":"EUVD-2020-13008","description":"Mikrotik RouterOs before 6.44.6 (long-term tree) suffers from an uncontrolled resource consumption vulnerability in the /nova/bin/cerm process. An authenticated remote attacker can cause a Denial of Service due to overloading the systems CPU.","status":"published","published":"2021-07-21T13:49:07Z","modified":"2024-08-04T14:15:29Z","updated_at":"2026-11-03T03:07:24.770982Z"}],"ghsa":[{"id":"GHSA-m2h9-c2v8-hj79","title":"Mikrotik RouterOs before 6.44.6 (long-term tree) suffers from an uncontrolled resource...","description":"Mikrotik RouterOs before 6.44.6 (long-term tree) suffers from an uncontrolled resource consumption vulnerability in the /nova/bin/cerm process. An authenticated remote attacker can cause a Denial of Service due to overloading the systems CPU.","status":"published","published":"2022-05-24T19:08:50Z","modified":"2023-01-27T05:03:34Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:42:16.196802Z"}],"nvd":[{"id":"CVE-2020-20221","description":"Mikrotik RouterOs before 6.44.6 (long-term tree) suffers from an uncontrolled resource consumption vulnerability in the /nova/bin/cerm process. An authenticated remote attacker can cause a Denial of Service due to overloading the systems CPU.","status":"published","published":"2021-07-21T15:15:12.777Z","modified":"2026-06-17T03:02:53.083Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:06:44.292752Z"}]}}