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CVE-2021-41039

Quick assessment

Affected
The Eclipse Foundation Eclipse Mosquitto
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.

Eclipse Mosquitto是Eclipse基金会的一套开源的消息代理软件。 Eclipse mosquito 1.6到2.0.11版本存在安全漏洞，该漏洞源于软件中连接大量用户属性的MQTT v5客户机可能会导致过多的CPU占用，从而导致性能下降和可能的服务拒绝。

AI Predicted 6.5 Difficulty: Easy EPSS 1.35% · P71

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-41039

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In versions 1.6 to 2.0.11 of Eclipse Mosquitto, an MQTT v5 client connecting with a large number of user-property properties could cause excessive CPU usage, leading to a loss of performance and possible denial of service.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
循环内过多的平台资源消耗
Source: CVE Program / CVE List V5
Vulnerability Title
Eclipse Mosquitto 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Eclipse Mosquitto是Eclipse基金会的一套开源的消息代理软件。 Eclipse mosquito 1.6到2.0.11版本存在安全漏洞，该漏洞源于软件中连接大量用户属性的MQTT v5客户机可能会导致过多的CPU占用，从而导致性能下降和可能的服务拒绝。
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
The Eclipse Foundation Eclipse Mosquitto 1.6 ~ unspecified -

II. Public POCs for CVE-2021-41039

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III. Intelligence Information for CVE-2021-41039

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Vendor Advisories for CVE-2021-41039 (1)

Other References for CVE-2021-41039 (1)

IV. Related Vulnerabilities

Same product: Eclipse Mosquitto
Same vendor: The Eclipse Foundation
Same weakness: CWE-1050

V. Comments for CVE-2021-41039

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