{"id":"CVE-2020-20262","aliases":["EUVD-2020-13049","GHSA-wfgc-2f4p-cm5v"],"status":"published","title":"Mikrotik RouterOs before 6.47 (stable tree) suffers from an assertion failure vulnerability in...","description":"Mikrotik RouterOs before 6.47 (stable tree) suffers from an assertion failure vulnerability in the /ram/pckg/security/nova/bin/ipsec process. An authenticated remote attacker can cause a Denial of Service due to an assertion failure via a crafted packet.","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":0.02142,"percentile":0.82188,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-617"],"published":"2021-07-21T13:25:24Z","modified":"2026-06-17T03:02:55Z","products":[{"vendor":"mikrotik","product":"routeros"}],"references":[{"url":"https://github.com/cq674350529/pocs_slides/blob/master/pocs/MikroTik/vul_ipsec/README.md","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"https://seclists.org/fulldisclosure/2021/May/2","tags":["x_refsource_MISC","x_transferred","Exploit","Mailing List","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-20262"},{"url":"https://github.com/advisories/GHSA-wfgc-2f4p-cm5v"}],"sources":{"cve":[{"id":"CVE-2020-20262","description":"Mikrotik RouterOs before 6.47 (stable tree) suffers from an assertion failure vulnerability in the /ram/pckg/security/nova/bin/ipsec process. An authenticated remote attacker can cause a Denial of Service due to an assertion failure via a crafted packet.","status":"published","published":"2021-07-21T13:25:24Z","modified":"2024-08-04T14:15:28.799Z","updated_at":"2026-11-02T14:35:45.763329Z"}],"euvd":[{"id":"EUVD-2020-13049","description":"Mikrotik RouterOs before 6.47 (stable tree) suffers from an assertion failure vulnerability in the /ram/pckg/security/nova/bin/ipsec process. An authenticated remote attacker can cause a Denial of Service due to an assertion failure via a crafted packet.","status":"published","published":"2021-07-21T13:25:24Z","modified":"2024-08-04T14:15:28Z","updated_at":"2026-11-03T03:07:24.770982Z"}],"ghsa":[{"id":"GHSA-wfgc-2f4p-cm5v","title":"Mikrotik RouterOs before 6.47 (stable tree) suffers from an assertion failure vulnerability in...","description":"Mikrotik RouterOs before 6.47 (stable tree) suffers from an assertion failure vulnerability in the /ram/pckg/security/nova/bin/ipsec process. An authenticated remote attacker can cause a Denial of Service due to an assertion failure via a crafted packet.","status":"published","published":"2022-05-24T19:08:50Z","modified":"2023-01-30T05:00:56Z","cwes":["CWE-617"],"updated_at":"2026-11-02T14:46:18.181654Z"}],"nvd":[{"id":"CVE-2020-20262","description":"Mikrotik RouterOs before 6.47 (stable tree) suffers from an assertion failure vulnerability in the /ram/pckg/security/nova/bin/ipsec process. An authenticated remote attacker can cause a Denial of Service due to an assertion failure via a crafted packet.","status":"published","published":"2021-07-21T15:15:12.807Z","modified":"2026-06-17T03:02:55.28Z","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":4,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T14:06:44.292752Z"}]}}