Medium severity6.5NVD Advisory· Published May 11, 2021· Updated Jun 17, 2026

CVE-2020-20267

Description

Mikrotik RouterOs before 6.47 (stable tree) suffers from a memory corruption vulnerability in the /nova/bin/resolver process. An authenticated remote attacker can cause a Denial of Service due to invalid memory access.

Affected products

Mikrotik/Routeros2 versions
cpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:*range: <6.47
- (no CPE)range: <6.47
Mikrotik/RouterOsdescription

Patches

Vulnerability mechanics

References

seclists.org/fulldisclosure/2021/May/12nvdExploitMailing ListThird Party Advisory

News mentions

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