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CVE-2026-106017

Quick assessment

Affected
OpenVPN OpenVPN 3 Core Library
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.

OpenVPN 3 Core 库 3.4 至 3.11.7 版本中存在证书验证不当的漏洞，允许攻击者绕过扩展密钥用法（Extended Key Usage, EKU）限制。

CVSS 6.3 · Medium
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I. Basic Information for CVE-2026-106017

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Improper certificate validation in the OpenVPN 3 Core library version 3.4 through 3.11.7 allows attackers to circumvent extended key usage restrictions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenVPN OpenVPN 3 Core Library 3.4 ~ 3.11.7 -

II. Public POCs for CVE-2026-106017

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III. Intelligence Information for CVE-2026-106017

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Vendor Pages for CVE-2026-106017 (1)

IV. Related Vulnerabilities

Same product: OpenVPN 3 Core Library
Same vendor: OpenVPN
Same weakness: CWE-295

V. Comments for CVE-2026-106017

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