{"id":"CVE-2020-20253","aliases":["EUVD-2020-13040","GHSA-qm8m-4g9c-j864"],"status":"published","title":"Mikrotik RouterOs before 6.47 (stable tree) suffers from a divison by zero vulnerability in the ...","description":"Mikrotik RouterOs before 6.47 (stable tree) suffers from a divison by zero vulnerability in the /nova/bin/lcdstat process. An authenticated remote attacker can cause a Denial of Service due to a divide by zero error.","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":0.02098,"percentile":0.81824,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-369"],"published":"2021-05-18T13:51:38Z","modified":"2026-06-17T03:02:55Z","products":[{"vendor":"mikrotik","product":"routeros"}],"references":[{"url":"https://github.com/cq674350529/pocs_slides/blob/master/pocs/MikroTik/vul_lcdstat_4/README.md","tags":["x_refsource_MISC","x_transferred","Broken Link","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/May/14","tags":["mailing-list","x_refsource_FULLDISC","x_transferred","Exploit","Mailing List","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-20253"},{"url":"https://github.com/advisories/GHSA-qm8m-4g9c-j864"}],"sources":{"cve":[{"id":"CVE-2020-20253","description":"Mikrotik RouterOs before 6.47 (stable tree) suffers from a divison by zero vulnerability in the /nova/bin/lcdstat process. An authenticated remote attacker can cause a Denial of Service due to a divide by zero error.","status":"published","published":"2021-05-18T13:51:38Z","modified":"2024-08-04T14:15:29.004Z","updated_at":"2026-11-02T14:35:45.763329Z"}],"euvd":[{"id":"EUVD-2020-13040","description":"Mikrotik RouterOs before 6.47 (stable tree) suffers from a divison by zero vulnerability in the /nova/bin/lcdstat process. An authenticated remote attacker can cause a Denial of Service due to a divide by zero error.","status":"published","published":"2021-05-18T13:51:38Z","modified":"2024-08-04T14:15:29Z","updated_at":"2026-11-03T03:07:24.770982Z"}],"ghsa":[{"id":"GHSA-qm8m-4g9c-j864","title":"Mikrotik RouterOs before 6.47 (stable tree) suffers from a divison by zero vulnerability in the ...","description":"Mikrotik RouterOs before 6.47 (stable tree) suffers from a divison by zero vulnerability in the /nova/bin/lcdstat process. An authenticated remote attacker can cause a Denial of Service due to a divide by zero error.","status":"published","published":"2022-05-24T19:02:43Z","modified":"2023-01-29T05:06:45Z","cwes":["CWE-369"],"updated_at":"2026-11-02T14:46:05.419939Z"}],"nvd":[{"id":"CVE-2020-20253","description":"Mikrotik RouterOs before 6.47 (stable tree) suffers from a divison by zero vulnerability in the /nova/bin/lcdstat process. An authenticated remote attacker can cause a Denial of Service due to a divide by zero error.","status":"published","published":"2021-05-18T14:15:07.293Z","modified":"2026-06-17T03:02:55.033Z","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-369"],"updated_at":"2026-11-02T14:06:39.25999Z"}]}}