CVE-2021-28166: In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL…

PriorityP429medium6.5CVSS 3.1

AVNACLPRLUINSUCNINAH

EPSS

0.97%

57.4th percentile

In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
debian	mosquitto	< mosquitto 2.0.10-1 (bookworm)	mosquitto 2.0.10-1 (bookworm)
eclipse	mosquitto	>= 0 < 2.0.10-1	2.0.10-1
eclipse	mosquitto	>= 0 < 2.0.10-1	2.0.10-1
eclipse	mosquitto	>= 0 < 2.0.10-1	2.0.10-1
eclipse	mosquitto	>= 0 < 2.0.10-1	2.0.10-1
eclipse	mosquitto	2.0.0 – 2.0.9	—
the_eclipse_foundation	eclipse_mosquitto	>= 2.0 < unspecified	unspecified
the_eclipse_foundation	eclipse_mosquitto	unspecified – 2.0.9	—

CVSS provenance

nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P

osv6.5MEDIUM

vendor_debian6.5MEDIUM

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