CVE-2021-41987

high-risk
Published 2022-03-16

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.

Do I need to act?

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49.6% chance of exploitation in next 30 days
EPSS score — higher than 50% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.1/10 High
NETWORK / HIGH complexity

Affected Products (3)

Affected Vendors

Mikrotik

References (4)

Release Notes https://mikrotik.com/download/archive
Exploit https://teamt5.org/en/posts/vulnerability-mikrotik-cve-2021-41987/
Release Notes https://mikrotik.com/download/archive
Exploit https://teamt5.org/en/posts/vulnerability-mikrotik-cve-2021-41987/
51
/ 100
high-risk
Severity 24/34 · High
Exploitability 18/34 · Moderate
Exposure 9/34 · Low