LearnCTEM.com, Best CTEM Learning Platform
CVE Intelligence Hub

CVE-2026-9560: Openvpn Connect OS Command Injection (CVSS 9.4)

CVE-2026-9560 is a critical severity os command injection in Openvpn Connect with a CVSS score of 9.4. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Last updated: Jul 23, 2026

Quick answer

Direct answer

CVE-2026-9560 is a critical severity os command injection in Openvpn Connect with a CVSS score of 9.4. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Risk scores

CVSS base score
9.4CRITICAL
EPSS probability
0.38%
Higher than 30 percent of all CVEs
CISA KEV
Not listed
CVSS metricWhat it means
Attack vector (AV:L)Local access needed
Attack complexity (AC:L)Low complexity
Attack requirements (AT:N)No attack requirements
Privileges required (PR:N)No privileges required
User interaction (UI:N)No user interaction
Confidentiality (VC:H)High confidentiality impact
Integrity (VI:H)High integrity impact
Availability (VA:H)High availability impact

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

About Openvpn Connect

CVE-2026-9560 affects Openvpn Connect, a product from Openvpn. Before acting, confirm where Openvpn Connect runs in your estate, who owns it and whether it is reachable from the internet, because exposure decides real risk more than the score alone.

What the flaw is

In plain terms: Privilege escalation via background service of OpenVPN Connect 3.5.1 through 3.8.1 on macOS allows attackers to execute arbitrary commands with elevated privileges via local IPC channel

The weakness class is OS Command Injection. Untrusted input is passed to the operating system shell, letting an attacker run commands.

Based on its CVSS vector, the flaw needs local or adjacent access, needs no login, and needs no user interaction. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Affected versions and timeline

FieldDetail
ProductOpenvpn Connect
Affected versionsConnect from 3.5.1 before 3.8.2
PublishedMay 26, 2026
Last modifiedJul 23, 2026
Added to CISA KEVNot listed
Assigning CNAsecurity@openvpn.net

How to detect it

  • Inventory every instance of Openvpn Connect and record the running version against the affected range above.
  • Check external attack surface scans for internet facing instances of the component.
  • Review logs on affected systems for unusual requests, errors or new processes around the vulnerable function.
  • Confirm with an authenticated vulnerability scan once your scanner has a check for this CVE.

How to fix it

  • Apply the fixed version of Openvpn Connect named in the vendor advisory.
  • If patching must wait, restrict network access to the affected service and put it behind authentication or a web application firewall rule.
  • Rescan after the change to prove the exposure is gone, then close the ticket.

CTEM action plan

CTEM stageWhat to do for this CVE
ScopeAdd every business service that depends on Openvpn Connect to the current CTEM cycle.
DiscoverFind all instances, including shadow and cloud deployments, and record versions and exposure.
PrioritizeRank using EPSS and CVSS together with asset exposure and business impact.
ValidateConfirm the flaw is reachable and exploitable in your environment and that compensating controls work.
MobilizeAssign the fix to the asset owner with a due date matched to the priority, then verify closure.

CWE References

Technical References

Frequently asked questions

CVE-2026-9560 is a critical severity os command injection in Openvpn Connect with a CVSS score of 9.4. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Related CVEs

HIGH7.1
CVE-2026-12932
Openvpn

A memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service (memory exhaustion) via a flood of crafted packets

Jul 30, 2026
HIGH7.0
CVE-2026-11771
Openvpn

OpenVPN version 2.1.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows attackers via an off-by-one buffer write in the NTLM proxy authentication to potentially cause a crash via a crafted NTLM response from a malicious proxy server

Jul 30, 2026
CRITICAL10.0
CVE-2026-28409
Wegia

WeGIA is a web manager for charitable institutions. Prior to version 3.6.5, a critical Remote Code Execution (RCE) vulnerability exists in the WeGIA application's database restoration functionality. An attacker with administrative access (which can be obtained via the previously reported Authentication Bypass) can execute arbitrary OS commands on the server by uploading a backup file with a specifically crafted filename. Version 3.6.5 fixes the issue.

Feb 27, 2026
CRITICAL10.0
CVE-2026-41553
Dhtmlx Pdf Export Module

PDF Export Module used in DHTMLX's products Gantt and Scheduler is vulnerable to Remote Code Execution due to lack of "data" parameter sanitization. An unauthenticated attacker can inject the malicious JavaScript code to the parameter whose value is processed by Node.js and subsequently executed. This can lead to server compromise. This issue was fixed in PDF Export Module version 0.7.6.

May 15, 2026
CRITICAL10.0
CVE-2026-22781
Ritlabs Tinyweb

TinyWeb is a web server (HTTP, HTTPS) written in Delphi for Win32. TinyWeb HTTP Server before version 1.98 is vulnerable to OS command injection via CGI ISINDEX-style query parameters. The query parameters are passed as command-line arguments to the CGI executable via Windows CreateProcess(). An unauthenticated remote attacker can execute arbitrary commands on the server by injecting Windows shell metacharacters into HTTP requests. This vulnerability is fixed in 1.98.

Jan 12, 2026
CRITICAL10.0
CVE-2026-27613
Ritlabs Tinyweb

TinyWeb is a web server (HTTP, HTTPS) written in Delphi for Win32. A vulnerability in versions prior to 2.01 allows unauthenticated remote attackers to bypass the web server's CGI parameter security controls. Depending on the server configuration and the specific CGI executable in use, the impact is either source code disclosure or remote code execution (RCE). Anyone hosting CGI scripts (particularly interpreted languages like PHP) using vulnerable versions of TinyWeb is impacted. The problem has been patched in version 2.01. If upgrading is not immediately possible, ensure `STRICT_CGI_PARAMS` is enabled (it is defined by default in `define.inc`) and/or do not use CGI executables that natively accept dangerous command-line flags (such as `php-cgi.exe`). If hosting PHP, consider placing the server behind a Web Application Firewall (WAF) that explicitly blocks URL query string parameters that begin with a hyphen (`-`) or contain encoded double quotes (`%22`).

Feb 25, 2026
All Openvpn CVEs in 2026
Your next credential

Earn your free CTEM certification.

Learn to scope, prioritize, validate and mobilize fixes for CVEs like CVE-2026-9560 with a free CTEM certification.

Free to takePublicly verifiable

Beginner / Practitioner / Program Leader

Explore certifications