CVE-2020-20227
MEDIUMCVSS 6.5/10EPSS 3.08%
Last modified
CVE-2020-20227 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Mikrotik RouterOs stable 6.47 suffers from a memory corruption vulnerability in the /nova/bin/diskd process. An authenticated remote attacker can cause a Denial of Service due to invalid memory access.. EPSS estimates a 3.08% chance of exploitation in the next 30 days.
Description
Mikrotik RouterOs stable 6.47 suffers from a memory corruption vulnerability in the /nova/bin/diskd process. An authenticated remote attacker can cause a Denial of Service due to invalid memory access.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mikrotik | Routeros | 6.47 |
References
- http://packetstormsecurity.com/files/162533/MikroTik-RouterOS-Memory-Corruption.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2021/May/23Exploit, Mailing List, Third Party Advisory
- https://mikrotik.com/Product
- http://packetstormsecurity.com/files/162533/MikroTik-RouterOS-Memory-Corruption.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2021/May/23Exploit, Mailing List, Third Party Advisory
- https://mikrotik.com/Product
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-20227?
Mikrotik RouterOs stable 6.47 suffers from a memory corruption vulnerability in the /nova/bin/diskd process. An authenticated remote attacker can cause a Denial of Service due to invalid memory access.
How severe is CVE-2020-20227?
CVE-2020-20227 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 3.08% probability of exploitation in the next 30 days.
How do I fix CVE-2020-20227?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2020-20227?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST