VULNERABILITY INTELLIGENCE

CVE-2019-11779

CVSS score6.5 MEDIUM
EPSS probability2.74%
CISA KEVNot currently listed
Published2019-09-19
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

In Eclipse Mosquitto 1.5.0 to 1.6.5 inclusive, if a malicious MQTT client sends a SUBSCRIBE packet containing a topic that consists of approximately 65400 or more '/' characters, i.e. the topic hierarchy separator, then a stack overflow will occur.

Weakness classification

  • CWE-674: Uncontrolled Recursion
  • CWE-754: Improper Check for Unusual or Exceptional Conditions

Primary references