What’s Vulnerable › Vulnerabilities
CVE-2017-8338
- Severity: high (CVSS 7.5 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 4.2% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2017-05-18 · updated 2026-06-17
- Weakness: CWE-400
Description
A vulnerability in MikroTik Version 6.38.5 could allow an unauthenticated remote attacker to exhaust all available CPU via a flood of UDP packets on port 500 (used for L2TP over IPsec), preventing the affected router from accepting new connections; all devices will be disconnected from the router and all logs removed automatically.
Affected products
- MikroTik RouterOS: 6.38.5
References
- http://seclists.org/fulldisclosure/2017/May/59
- https://cxsecurity.com/issue/WLB-2017050062
- https://packetstormsecurity.com/files/142538/MikroTik-RouterBoard-6.38.5-Denial-Of-Service.html
- https://www.vulnerability-lab.com/get_content.php?id=2064
- http://seclists.org/fulldisclosure/2017/May/59
- https://cxsecurity.com/issue/WLB-2017050062
- https://packetstormsecurity.com/files/142538/MikroTik-RouterBoard-6.38.5-Denial-Of-Service.html
- https://www.vulnerability-lab.com/get_content.php?id=2064
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