{"id":"CVE-2020-20249","aliases":["EUVD-2020-13036","GHSA-7x49-c3gr-9hhc"],"status":"published","title":"Mikrotik RouterOs before stable 6.47 suffers from a memory corruption vulnerability in the...","description":"Mikrotik RouterOs before stable 6.47 suffers from a memory corruption vulnerability in the resolver process. By sending a crafted packet, an authenticated remote attacker can cause a Denial of Service.","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":"2026-11-07","score":0.01754,"percentile":0.78054,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-787"],"published":"2021-07-19T17:27:54Z","modified":"2026-06-17T03:02:54Z","products":[{"vendor":"mikrotik","product":"routeros"}],"references":[{"url":"https://github.com/cq674350529/pocs_slides/blob/master/advisory/MikroTik/CVE-2020-20249/README.md","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-20249"},{"url":"https://github.com/advisories/GHSA-7x49-c3gr-9hhc"}],"sources":{"cve":[{"id":"CVE-2020-20249","description":"Mikrotik RouterOs before stable 6.47 suffers from a memory corruption vulnerability in the resolver process. By sending a crafted packet, an authenticated remote attacker can cause a Denial of Service.","status":"published","published":"2021-07-19T17:27:54Z","modified":"2024-08-04T14:15:29.159Z","updated_at":"2026-11-02T14:35:45.763329Z"}],"euvd":[{"id":"EUVD-2020-13036","description":"Mikrotik RouterOs before stable 6.47 suffers from a memory corruption vulnerability in the resolver process. By sending a crafted packet, an authenticated remote attacker can cause a Denial of Service.","status":"published","published":"2021-07-19T17:27:54Z","modified":"2024-08-04T14:15:29Z","updated_at":"2026-11-03T03:07:24.770982Z"}],"ghsa":[{"id":"GHSA-7x49-c3gr-9hhc","title":"Mikrotik RouterOs before stable 6.47 suffers from a memory corruption vulnerability in the...","description":"Mikrotik RouterOs before stable 6.47 suffers from a memory corruption vulnerability in the resolver process. By sending a crafted packet, an authenticated remote attacker can cause a Denial of Service.","status":"published","published":"2022-05-24T19:08:26Z","modified":"2023-01-27T05:03:14Z","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"],"updated_at":"2026-11-02T14:42:12.225813Z"}],"nvd":[{"id":"CVE-2020-20249","description":"Mikrotik RouterOs before stable 6.47 suffers from a memory corruption vulnerability in the resolver process. By sending a crafted packet, an authenticated remote attacker can cause a Denial of Service.","status":"published","published":"2021-07-19T18:15:08.26Z","modified":"2026-06-17T03:02:54.67Z","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":"2026-11-02T14:06:44.292752Z"}]}}