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CVE-2021-33175

Quick assessment

Affected
EMQ Technologies EMQ X Broker
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

EMQ X Broker是一个分布式消息代理。 EMQ X Broker4.2.8之前存在安全漏洞，该漏洞由于处理不可信输入导致的过度内存消耗造成的。

AI Predicted 7.5 Difficulty: Easy EPSS 1.10% · P64

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-33175

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
EMQ X Broker 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
EMQ X Broker是一个分布式消息代理。 EMQ X Broker4.2.8之前存在安全漏洞，该漏洞由于处理不可信输入导致的过度内存消耗造成的。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
EMQ Technologies EMQ X Broker <4.2.8 -

II. Public POCs for CVE-2021-33175

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III. Intelligence Information for CVE-2021-33175

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Other References for CVE-2021-33175 (1)

IV. Related Vulnerabilities

Same weakness: CWE-502

V. Comments for CVE-2021-33175

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