1. Home
  2. CVE Database
  3. CVE-2020-13849
HIGH · 7.5

CVE-2020-13849

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 abilit...

Vulnerability 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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
MqttMqtt3.1.1

Related Weaknesses (CWE)

CWE-400

References

FAQ

What is CVE-2020-13849?

CVE-2020-13849 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 abilit...

How severe is CVE-2020-13849?

CVE-2020-13849 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-13849?

Check the references section above for vendor advisories and patch information. Affected products include: Mqtt Mqtt.