Medium severity · published May 18, 2021
CVE-2020-20236
Mikrotik RouterOs 6.46.3 (stable tree) suffers from a memory corruption vulnerability in the /nova/bin/sniffer process
6.5
CVSS
3.2%
EPSS
No
On KEV
Description
Mikrotik RouterOs 6.46.3 (stable tree) suffers from a memory corruption vulnerability in the /nova/bin/sniffer process. An authenticated remote attacker can cause a Denial of Service due to improper memory access.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.2% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RO
Routeros · Mikrotik
6.46.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-20236
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-20236
Exploit
http://packetstormsecurity.com/files/162513/Mikrotik-RouterOS-6.46.5-Memory-Corruption-Assertion-Failure.html
Exploit
http://seclists.org/fulldisclosure/2021/May/15
Product
https://mikrotik.com/
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