VULNERABILITY INTELLIGENCE
CVE-2021-34432
CVSS score7.5 HIGH
EPSS probability1.25%
CISA KEVNot currently listed
Published2021-07-27
Last modified2026-07-02
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
In Eclipse Mosquitto versions 2.0.7 and earlier, the server will crash if the client tries to send a PUBLISH packet with topic length = 0.
Weakness classification
- CWE-20: Improper Input Validation
Primary references
- emo@eclipse.org — Exploit, Issue Tracking, Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Patch, Vendor Advisory