Servers and applications

CVE-2020-20249

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: Medium 6.5
Published: 19 Jul 2021
Last changed: 17 Jun 2026
Added to UpHeron: 1 Nov 2026
Fixed in: 6.47
Sources: NVD

Affected software

Software	Affected versions
MikroTik RouterOSServers and applications · `cpe:o:mikrotik:routeros`	Every version before 6.47

References

NVD https://nvd.nist.gov/vuln/detail/CVE-2020-20249
CVE.org https://www.cve.org/CVERecord?id=CVE-2020-20249