CVE-2021-33175

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-502 CWE-770

Affected software

No affected versions have been published.

Timeline

Published: Jun 8, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-331767.5VerneMQ MQTT Broker versions prior to 1.12.0 are vulnerable to a denial of service attack as a result of excessive memory consumption due to CVE-2021-331778.8The Bulk Modifications functionality in Nagios XI versions prior to 5.8.5 is vulnerable to SQL injection. Exploitation requires the maliciou CVE-2021-331786.5The Manage Backgrounds functionality within NagVis versions prior to 1.9.29 is vulnerable to an authenticated path traversal vulnerability. CVE-2021-331796.1The general user interface in Nagios XI versions prior to 5.8.4 is vulnerable to authenticated reflected cross-site scripting. An authentica CVE-2021-33186.1attach/ajax.php in DzzOffice through 2.02.1 allows XSS via the editorid parameter.CVE-2021-331809.8Improper neutralization of special elements used in an SQL command ('SQL Injection') vulnerability in cgi component in Synology Media Server CVE-2021-331819.1Server-Side Request Forgery (SSRF) vulnerability in webapi component in Synology Video Station before 2.4.10-1632 allows remote authenticate CVE-2021-331824.3Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in PDF Viewer component in Synology DiskStation CVE-2021-331837.9Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability container volume management component in Synolo CVE-2021-331847.7Server-Side request forgery (SSRF) vulnerability in task management component in Synology Download Station before 3.8.15-3563 allows remote CVE-2021-331857.5SerenityOS contains a buffer overflow in the set_range test in TestBitmap which could allow attackers to obtain sensitive information.CVE-2021-331867.5SerenityOS in test-crypto.cpp contains a stack buffer overflow which could allow attackers to obtain sensitive information.