CVE-2026-63649

openvpn: OpenVPN: Privilege escalation via arbitrary configuration file loading

Published Aug 14, 2026 CVSS 4.0 · 4.1 Medium EPSS < 1% KEV · Not listed
Description
The Windows interactive service in OpenVPN 2.4.0 through 2.6.21 and 2.7_alpha1 through 2.7.5 allows local authenticated users to bypass the trusted configuration directory constraint and load arbitrary configuration files via crafted options that bypass whitelist checks

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Local Configuration File Bypass in OpenVPN Interactive Service openvpn: OpenVPN: Privilege escalation via arbitrary configuration file loading
Weaknesses CWE-22
References
Metrics threat_severity

None

cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

threat_severity

Important

Type Values Removed Values Added
Title Local Configuration File Bypass in OpenVPN Interactive Service
Type Values Removed Values Added
First Time appeared Openvpn
Openvpn openvpn
Vendors & Products Openvpn
Openvpn openvpn
Type Values Removed Values Added
Description The Windows interactive service in OpenVPN 2.4.0 through 2.6.21 and 2.7_alpha1 through 2.7.5 allows local authenticated users to bypass the trusted configuration directory constraint and load arbitrary configuration files via crafted options that bypass whitelist checks
Weaknesses CWE-183
References
Metrics cvssV4_0

{'score': 4.1, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
OpenVPN
Published
Updated
Aug 17, 2026, 3:38 PM
Reserved
Jul 17, 2026, 2:38 PM
Status
Awaiting Analysis
Published
Aug 14, 2026, 11:16 PM
Modified
Sep 1, 2026, 9:03 PM
Severity
Important
Public date
Aug 14, 2026, 10:13 PM