CVE-2021-34432

HIGH

Eclipse Mosquitto < 2.0.7 - Denial of Service via Zero-Length Topic PUBLISH Packet

Title source: llm
STIX 2.1

Description

In Eclipse Mosquitto versions 2.07 and earlier, the server will crash if the client tries to send a PUBLISH packet with topic length = 0.

References (1)

Core 1
Core References
Exploit, Issue Tracking, Patch, Vendor Advisory x_refsource_confirm
https://bugs.eclipse.org/bugs/show_bug.cgi?id=574141

Scores

CVSS v3 7.5
EPSS 0.0060
EPSS Percentile 69.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-20
Status published
Products (1)
eclipse/mosquitto < 2.0.7
Published Jul 27, 2021
Tracked Since Feb 18, 2026