CVE-2021-20236
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-20236
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20236.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-20236
- Downstream
- Related
- Published
- 2021-05-28T11:15:07Z
- Modified
- 2025-08-09T19:01:27Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A flaw was found in the ZeroMQ server in versions before 4.3.3. This flaw allows a malicious client to cause a stack buffer overflow on the server by sending crafted topic subscription requests and then unsubscribing. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
- References