CVE-2021-34431
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-34431
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-34431.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-34431
- Downstream
- Published
- 2021-07-22T14:15:08Z
- Modified
- 2025-09-19T13:02:09.245043Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In Eclipse Mosquitto version 1.6 to 2.0.10, if an authenticated client that had connected with MQTT v5 sent a crafted CONNECT message to the broker a memory leak would occur, which could be used to provide a DoS attack against the broker.
- References