What’s Vulnerable › Vulnerabilities

CVE-2019-13955

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-07-26 · updated 2026-06-17
• Weakness: CWE-674

Description

Mikrotik RouterOS before 6.44.5 (long-term release tree) is vulnerable to stack exhaustion. By sending a crafted HTTP request, an authenticated remote attacker can crash the HTTP server via recursive parsing of JSON. Malicious code cannot be injected.

Affected products

• MikroTik RouterOS: before 6.44.5; 6.45 — fixed in 6.44.5

How to fix

Upgrade to a fixed version: MikroTik RouterOS 6.44.5. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/153733/Mikrotik-RouterOS-Resource-Stack-Exhaustion.html
• https://seclists.org/fulldisclosure/2019/Jul/20
• http://packetstormsecurity.com/files/153733/Mikrotik-RouterOS-Resource-Stack-Exhaustion.html
• https://seclists.org/fulldisclosure/2019/Jul/20

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