{"id":"CVE-2020-20246","aliases":["EUVD-2020-13033","GHSA-r2hx-h58m-4q29"],"status":"published","title":"Mikrotik RouterOs stable 6.46.3 suffers from a memory corruption vulnerability in the mactel...","description":"Mikrotik RouterOs stable 6.46.3 suffers from a memory corruption vulnerability in the mactel process. An authenticated remote attacker can cause a Denial of Service due to improper memory access.","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":"2026-11-10","score":0.02737,"percentile":0.86267,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-787"],"published":"2021-05-18T19:11:01Z","modified":"2026-06-17T03:02:54Z","products":[{"vendor":"mikrotik","product":"routeros"}],"references":[{"url":"https://mikrotik.com/","tags":["x_refsource_MISC","x_transferred","Product"]},{"url":"http://seclists.org/fulldisclosure/2021/May/23","tags":["mailing-list","x_refsource_FULLDISC","x_transferred","Exploit","Mailing List","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/162533/MikroTik-RouterOS-Memory-Corruption.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-20246"},{"url":"https://github.com/advisories/GHSA-r2hx-h58m-4q29"}],"sources":{"cve":[{"id":"CVE-2020-20246","description":"Mikrotik RouterOs stable 6.46.3 suffers from a memory corruption vulnerability in the mactel process. An authenticated remote attacker can cause a Denial of Service due to improper memory access.","status":"published","published":"2021-05-18T19:11:01Z","modified":"2024-08-04T14:15:29.019Z","updated_at":"2026-11-02T14:35:45.763329Z"}],"euvd":[{"id":"EUVD-2020-13033","description":"Mikrotik RouterOs stable 6.46.3 suffers from a memory corruption vulnerability in the mactel process. An authenticated remote attacker can cause a Denial of Service due to improper memory access.","status":"published","published":"2021-05-18T19:11:01Z","modified":"2024-08-04T14:15:29Z","updated_at":"2026-11-03T03:07:24.770982Z"}],"ghsa":[{"id":"GHSA-r2hx-h58m-4q29","title":"Mikrotik RouterOs stable 6.46.3 suffers from a memory corruption vulnerability in the mactel...","description":"Mikrotik RouterOs stable 6.46.3 suffers from a memory corruption vulnerability in the mactel process. An authenticated remote attacker can cause a Denial of Service due to improper memory access.","status":"published","published":"2022-05-24T19:02:41Z","modified":"2023-01-29T05:06:43Z","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-119","CWE-787"],"updated_at":"2026-11-02T14:46:05.419939Z"}],"nvd":[{"id":"CVE-2020-20246","description":"Mikrotik RouterOs stable 6.46.3 suffers from a memory corruption vulnerability in the mactel process. An authenticated remote attacker can cause a Denial of Service due to improper memory access.","status":"published","published":"2021-05-18T20:15:07.513Z","modified":"2026-06-17T03:02:54.307Z","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-787"],"updated_at":"2026-11-02T14:06:39.25999Z"}]}}