Cyber Resilience

CVE-2026-9560

Critical

Published: 26 May 2026

Published
26 May 2026
Modified
27 May 2026
KEV Added
—
Patch
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CVSS Score v4 9.4 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
EPSS Score 0.0057 43.1th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2026-9560 is a critical-severity OS Command Injection (CWE-78) vulnerability in Openvpn Connect. Its CVSS base score is 9.4 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 43.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

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

CWE(s)
CWE-78CWE-267CWE-270CWE-648

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1559.003 XPC Services Execution
Adversaries can provide malicious content to an XPC service daemon for local code execution.
attack.mitre.org →
Why these techniques?

Local privilege escalation via IPC to macOS background service directly enables T1068; macOS XPC-style local IPC maps to T1559.003.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2024-8474Same product: Openvpn Connect
CVE-2024-5594Same vendor: Openvpn
CVE-2025-12106Same vendor: Openvpn
CVE-2024-55968Shared CWE-267
CVE-2026-35663Shared CWE-648
CVE-2026-29646Shared CWE-267
CVE-2026-35625Shared CWE-648
CVE-2026-20126Shared CWE-648
CVE-2026-23526Shared CWE-267
CVE-2026-2460Shared CWE-267

Affected Assets

openvpn
connect
3.5.1 — 3.8.2

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

SI-10 Information Input Validation
addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

References