VULNERABILITY INTELLIGENCE

CVE-2020-13849

CVSS score7.5 HIGH
EPSS probability2.05%
CISA KEVNot currently listed
Published2020-06-04
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

The MQTT protocol 3.1.1 requires a server to set a timeout value of 1.5 times the Keep-Alive value specified by a client, which allows remote attackers to cause a denial of service (loss of the ability to establish new connections), as demonstrated by SlowITe.

Weakness classification

  • nvd@nist.gov: CWE-400

Primary references