High severity · published Mar 16, 2022
CVE-2021-41987
In the SCEP Server of RouterOS in certain Mikrotik products, an attacker can trigger a heap-based buffer overflow that leads to remote code execution
8.1
CVSS
16.2%
EPSS
No
On KEV
Description
In the SCEP Server of RouterOS in certain Mikrotik products, an attacker can trigger a heap-based buffer overflow that leads to remote code execution. The attacker must know the scep_server_name value. This affects RouterOS 6.46.8, 6.47.9, and 6.47.10.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)16.2% · higher than 97% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RO
Routeros · Mikrotik
6.46.8; 6.47.9; 6.47.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41987
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-41987
Release Notes
https://mikrotik.com/download/archive
Exploit
https://teamt5.org/en/posts/vulnerability-mikrotik-cve-2021-41987/
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