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CVE-2026-13117

Quick assessment

Affected
OpenVPN OpenVPN
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是OpenVPN公司开源的一个用于创建虚拟专用网络(VPN)加密通道的软件包,它使用OpenSSL库来加密数据与控制信息,并允许创建的VPN使用公开密钥、电子证书或者用户名/密码来进行身份验证。 OpenVPN 2.6.0版本至2.6.20版本和2.7_alpha1版本至2.7.4版本存在资源管理错误漏洞，该漏洞源于不完整的保护，允许远程认证用户在TLS会话提升期间触发释放后重用，可能导致拒绝服务或内存泄漏。

CVSS 6.0 · Medium EPSS 0.40% · P33

Affected Version Matrix 2

VendorProduct Version RangeStatus
OpenVPN OpenVPN 2.6.0≤ 2.6.20 affected
2.7_alpha1≤ 2.7.4 affected
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I. Basic Information for CVE-2026-13117

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An incomplete guard in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote authenticated peers to trigger a use-after-free during TLS session promotion, potentially leading to a denial of service or memory leakage
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
OpenVPN 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenVPN是OpenVPN公司开源的一个用于创建虚拟专用网络(VPN)加密通道的软件包,它使用OpenSSL库来加密数据与控制信息,并允许创建的VPN使用公开密钥、电子证书或者用户名/密码来进行身份验证。 OpenVPN 2.6.0版本至2.6.20版本和2.7_alpha1版本至2.7.4版本存在资源管理错误漏洞，该漏洞源于不完整的保护，允许远程认证用户在TLS会话提升期间触发释放后重用，可能导致拒绝服务或内存泄漏。
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
OpenVPN OpenVPN 2.6.0 ~ 2.6.20 -

II. Public POCs for CVE-2026-13117

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III. Intelligence Information for CVE-2026-13117

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Same Patch Batch · OpenVPN · 2026-07-30 · 5 CVEs total

CVE-2026-12932 7.1 HIGH OpenVPN 资源管理错误漏洞
CVE-2026-11771 7.0 HIGH OpenVPN 缓冲区错误漏洞
CVE-2026-12996 6.0 MEDIUM OpenVPN 缓冲区错误漏洞
CVE-2026-13379 5.1 MEDIUM OpenVPN 缓冲区错误漏洞

IV. Related Vulnerabilities

Same product: OpenVPN
Same vendor: OpenVPN
Same weakness: CWE-416

V. Comments for CVE-2026-13117

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