Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2021-34432

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 Mosquitto 2.07 及更早版本中存在输入验证错误漏洞，攻击者可通过发送主题长度 = 0 的 PUBLISH 数据包导致服务器崩溃。

AI Predicted 7.5 Difficulty: Easy EPSS 1.25% · P68

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
The Eclipse Foundation Eclipse Mosquitto unspecified≤ 2.0.7 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-34432

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Eclipse Mosquitto versions 2.0.7 and earlier, the server will crash if the client tries to send a PUBLISH packet with topic length = 0.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Eclipse Mosquitto 输入验证错误漏洞
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 Mosquitto 2.07 及更早版本中存在输入验证错误漏洞，攻击者可通过发送主题长度 = 0 的 PUBLISH 数据包导致服务器崩溃。
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 unspecified ~ 2.0.7 -

II. Public POCs for CVE-2021-34432

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-34432

请登录查看更多情报信息。

Other References for CVE-2021-34432 (1)

IV. Related Vulnerabilities

Same product: Eclipse Mosquitto
Same vendor: The Eclipse Foundation
Same weakness: CWE-20

V. Comments for CVE-2021-34432

No comments yet

Leave a comment