Vulnerability Database

308,681

Total vulnerabilities in the database

CVE-2021-34432

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.

  • Published: Jul 27, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-34432
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:N/A:P

CWEs:

Software From Fixed in
eclipse / mosquitto - 2.0.7.x