Vulnerability in Mikrotik Routeros

CVE-2019-13955

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.

EPSS: 0.038 (88.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Mailing List, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-13955?
CVE-2019-13955 is a medium-severity vulnerability in Mikrotik Routeros, classified under Uncontrolled Recursion. CVSS score: 6.5/10. Published 2019-07-26.
How severe is CVE-2019-13955?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2019-13955 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.