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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-84790

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 版本 2.3.0 至 2.6.22，以及 2.7_alpha1 至 2.7.7 存在一个安全漏洞。远程经过认证的用户可以通过构造一个恶意的证书主题字段，从而冒充其他用户。

CVSS 7.6 · High

Possible ATT&CK Techniques 1 AI

T1199 · Trusted Relationship
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-84790

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
OpenVPN 2.7_alpha1 through 2.7.7 allows remote authenticated users to impersonate others via a crafted certificate subject field
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenVPN OpenVPN 2.7_alpha1 ~ 2.7.7 -

II. Public POCs for CVE-2026-84790

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-84790

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-84790 (1)

Same Patch Batch · OpenVPN · 2026-10-13 · 3 CVEs total

CVE-2026-88964 7.1 HIGH OpenVPN 2.7.7整数下溢致DoS/信息泄露
CVE-2026-105390 6.9 MEDIUM OpenVPN ovpn-dco-win 同步缺陷致死锁

IV. Related Vulnerabilities

Same product: OpenVPN
Same vendor: OpenVPN
Same weakness: CWE-290

V. Comments for CVE-2026-84790

No comments yet

Leave a comment