CVE-2021-41987: Buffer Overflow
First published: Wed Mar 16 2022(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| MikroTik RouterOS | =6.46.8 | |
| MikroTik RouterOS | =6.47.9 | |
| MikroTik RouterOS | =6.47.10 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-41987?
CVE-2021-41987 is a vulnerability in the SCEP Server of RouterOS in certain MikroTik products that allows an attacker to trigger a heap-based buffer overflow and execute remote code.
What is the severity of CVE-2021-41987?
The severity of CVE-2021-41987 is classified as high with a CVSS score of 8.1.
Which products are affected by CVE-2021-41987?
CVE-2021-41987 affects certain versions of MikroTik RouterOS including 6.46.8, 6.47.9, and 6.47.10.
How can an attacker exploit CVE-2021-41987?
To exploit CVE-2021-41987, the attacker must know the scep_server_name value and can then trigger a heap-based buffer overflow to execute remote code.
How can I mitigate CVE-2021-41987?
To mitigate CVE-2021-41987, it is recommended to update RouterOS to versions that have fixed the vulnerability as provided by MikroTik.
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- version/mikrotik routeros/6.46.8
- version/mikrotik routeros/6.47.9
- version/mikrotik routeros/6.47.10