CVE-2026-78043
Received Received - Intake

Windows Interactive Service Configuration File Bypass

Publication date: 2026-09-07

Last updated on: 2026-09-07

Assigner: OpenVPN Inc.

Description
The Windows Interactive Service in OpenVPN 2.7_alpha1 through 2.7.6 allows local authenticated users to bypass the trusted configuration directory constraint and load arbitrary configuration files via specially crafted paths

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-09-07
Last Modified
2026-09-07
Generated
2026-09-07
AI Q&A
2026-09-07
EPSS Evaluated
N/A
NVD
CVE-2026-78043
EUVD
EUVD-2026-72275

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
openvpn openvpn From 2.7_alpha1 (inc) to 2.7.6 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability in OpenVPN 2.7_alpha1 through 2.7.6 involves the Windows Interactive Service allowing local authenticated users to bypass security by loading arbitrary configuration files through specially crafted paths. This happens because the trusted configuration directory constraint can be circumvented.

Impact Analysis

If exploited, this vulnerability could allow an attacker with local access to execute unauthorized configurations on your system. This might lead to privilege escalation, data exposure, or bypassing security controls depending on the loaded configuration.

Compliance Impact

This vulnerability could impact compliance by potentially allowing unauthorized access or data breaches. For GDPR, it may lead to unauthorized processing of personal data. For HIPAA, it could risk exposure of protected health information if exploited.

Mitigation Strategies

Update OpenVPN to a version that patches this vulnerability. Restrict local user permissions to prevent unauthorized access to configuration files. Monitor system logs for suspicious activity related to configuration file modifications.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-78043. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart