VULNERABILITY INTELLIGENCE

CVE-2020-20266

CVSS score6.5 MEDIUM

EPSS probability2.10%

CISA KEVNot currently listed

Published2021-05-19

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

Mikrotik RouterOs before 6.47 (stable tree) suffers from a memory corruption vulnerability in the /nova/bin/dot1x process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference).

Weakness classification

CWE-476: NULL Pointer Dereference
CWE-787: Out-of-bounds Write

Primary references

cve@mitre.org — Broken Link, Third Party Advisory
cve@mitre.org — Exploit, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Broken Link, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Mailing List, Third Party Advisory