Vulnerability · Published Sep 7, 2026 · Assigned by OpenVPN
CVE-2026-78043
Medium 5.6
In plain English
A medium-severity path traversal in OpenVPN from OpenVPN. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).
Severity (CVSS 4.0)5.6Medium
Exploit odds (30 days)0.2%top 93.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | openvpn | no fix listed | UBUNTU-CVE-2026-78043 |
| Ubuntu:24.04:LTS | openvpn | no fix listed | UBUNTU-CVE-2026-78043 |
| Ubuntu:26.04:LTS | openvpn | no fix listed | UBUNTU-CVE-2026-78043 |
Affected products (as reported)
Weakness: CWE-22 · Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N