VULNERABILITY INTELLIGENCE

CVE-2021-33175

CVSS score7.5 HIGH
EPSS probability1.10%
CISA KEVNot currently listed
Published2021-06-08
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

EMQ X Broker versions prior to 4.2.8 are vulnerable to a denial of service attack as a result of excessive memory consumption due to the handling of untrusted inputs. These inputs cause the message broker to consume large amounts of memory, resulting in the application being terminated by the operating system.

Weakness classification

  • disclosure@synopsys.com: CWE-502
  • nvd@nist.gov: CWE-770

Primary references