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CVE-2025-12790— Rubygem-mqtt: rubygem-mqtt hostname validation

CVSS 7.4 · High EPSS 0.04% · P13
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I. Basic Information for CVE-2025-12790

Vulnerability Information
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Vulnerability Title
Rubygem-mqtt: rubygem-mqtt hostname validation
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in Rubygem MQTT. By default, the package used to not have hostname validation, resulting in possible Man-in-the-Middle (MITM) attack.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
路径遍历：’..filename’
Source: NVD (National Vulnerability Database)
Vulnerability Title
MQTT 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MQTT（Message Queuing Telemetry Transport,消息队列遥测传输）是一个ISO 标准（ISO/IEC PRF 20922）下基于发布 (Publish)/订阅 (Subscribe)范式的消息协议，它工作在TCP/IP协议族上，是为硬件性能低下的远程设备以及网络状况不好的情况下而设计的发布/订阅型消息协议。 MQTT存在安全漏洞，该漏洞源于默认情况下缺少主机名验证，可能导致中间人攻击。
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

VendorProductAffected VersionsCPESubscribe
Nicholas J Humfreyruby-mqtt 0 ~ 0.7.0 -
Red HatRed Hat Satellite 6-cpe:/a:redhat:satellite:6
Red HatRed Hat Satellite 6-cpe:/a:redhat:satellite:6

II. Public POCs for CVE-2025-12790

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III. Intelligence Information for CVE-2025-12790

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IV. Related Vulnerabilities

Same weakness: CWE-29

V. Comments for CVE-2025-12790

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