OpenVPN 2.7.*: Win Interactive Service auth bypass loads config
CVE-2026-78043 Published on September 7, 2026
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
Vulnerability Analysis
CVE-2026-78043 can be exploited with local system access. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a Directory traversal Vulnerability?
The software 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 software 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.
CVE-2026-78043 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2026-78043
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Affected Versions
OpenVPN:- Version 2.7_alpha1, <= 2.7.6 is affected.