CVE-2025-43920
Quick assessment
Affected
GNU Mailman
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
GNU Mailman是美国GNU社区的一套免费的用于管理电子邮件讨论和电子邮件列表的软件。该软件可与Web项目集成，使用户方便管理邮件订阅帐号，并提供内置归档、自动转发处理、内容过滤和反垃圾过滤器等功能。 GNU Mailman 2.1.39版本存在安全漏洞，该漏洞源于未过滤邮件主题中的特殊字符，可能导致任意命令执行。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-43920
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
GNU Mailman 2.1.39, as bundled in cPanel (and WHM), in certain external archiver configurations, allows unauthenticated attackers to execute arbitrary OS commands via shell metacharacters in an email Subject line. NOTE: multiple third parties report that they are unable to reproduce this, regardless of whether cPanel or WHM is used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
GNU Mailman 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNU Mailman是美国GNU社区的一套免费的用于管理电子邮件讨论和电子邮件列表的软件。该软件可与Web项目集成，使用户方便管理邮件订阅帐号，并提供内置归档、自动转发处理、内容过滤和反垃圾过滤器等功能。 GNU Mailman 2.1.39版本存在安全漏洞，该漏洞源于未过滤邮件主题中的特殊字符，可能导致任意命令执行。
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
II. Public POCs for CVE-2025-43920
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | None | https://github.com/0NYX-MY7H/CVE-2025-43920 | POC Details |
AI-Generated POC
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Proof of Concept for CVE-2025-43920 (1)
Mailing List Discussions for CVE-2025-43920 (1)
Vendor Pages for CVE-2025-43920 (1)
Other References for CVE-2025-43920 (1)
Same Patch Batch · GNU · 2025-04-20 · 3 CVEs total
| CVE-2025-43919 | 5.8 MEDIUM | GNU Mailman 安全漏洞 |
| CVE-2025-43921 | 5.3 MEDIUM | GNU Mailman 安全漏洞 |
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V. Comments for CVE-2025-43920
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