OpenVPN 2.7_rc5 -- Released 15 January 2026

The OpenVPN community project team is proud to release OpenVPN 2.7_rc5. This is the fifth release candidate for the feature release 2.7.0.

Security fixes:

• CVE-2025-15497: in epoch key handling (an authenticated remote system can send a valid OpenVPN data packet that triggers an edge case where a too-strict check would trigger an ASSERT(), exiting OpenVPN)

Important bug fixes since 2.7_rc4:

• remove "resolve --remote on incoming TCP connects on --tcp-server" code base, because that did not work in a long time (since 2.4) and is seen as too obscure and too complicated to rescue.
• repair interaction between DCO and persist-tun after reconnection (in this case the client side would fail to set up the DCO event handler, and not notice further --ping timeouts - GH: #947)
• remove ENABLE_X509ALTUSERNAME conditional, always enabling "configure --enable-x509-alt-username". Effectively no change in code size, and one less build variant to maintain and test (GH: OpenVPN/openvpn#917).
• require "script-security 2" when using --dev unix:<program>
• socks client: fix and improve various code parts
• configure etc: drop support for systemd 216 and older, adapt other checks to reflect modern systemd setups
• fix unit test building with libcmocka 2.0+
• fix Android build warnings about unused variables/methods
• allow --test-crypto to run without --secret (prepare for removal of --secret after 2.7)
• improve WolfSSL build compatibility

For a list of all changes see the git log.

Highlights of 2.7 include:

• Multi-socket support for servers -- Handle multiple addresses/ports/protocols within one server
• Improved Client support for DNS options
  • Client implementations for Linux/BSD/macOS, included with the default install
  • New client implementation for Windows, adding support for features like split DNS and DNSSEC
• Architectural improvements on Windows
  • The block-local flag is now enforced with WFP filters
  • Windows network adapters are now generated on demand
  • Windows automatic service now runs as an unpriviledged user
  • Support for server mode in win-dco driver
  • Note: Support for the wintun driver has been removed. win-dco is now the default, tap-windows6 is the fallback solution for use-cases not covered by win-dco.
• Improved data channel
  • Enforcement of AES-GCM usage limit
  • Epoch data keys and packet format
• Support for new upstream DCO Linux kernel module
  • This release supports the new ovpn DCO Linux kernel module which will be available in future upstream Linux kernel releases. Backports of the new module to current kernels are available via the ovpn-backports project.
• Client-side support for new PUSH_UPDATE control-channel message
  • This allows servers to send updates to options like routing and DNS config without triggering a reconnect.
• PUSH_UPDATE server support (minimal)
  • New management interface commands push-update-broad and push-update-cid to send PUSH_UPDATE option updates.
• TLS 1.3 support with bleeding-edge mbedTLS versions
• Two new environment variables have been introduced to communicate desired default gateway redirection to plugins like Network Manager.
• Support for Epoch data channel on Windows, using the win-dco driver (2.8.0+)
• "Recursive Routing" check is now more granular, and will only drop packets-in-tunnel if destination IP, protocol and port matches with those needed to reach the VPN server.
• COPYING: license details only relevant to our Windows installers have been updated and moved to the openvpn-build repo

For details see Changes.rst

Windows MSI changes since 2.7_rc4:

• Built against OpenSSL 3.6.0
• Included openvpn-gui updated to 11.61.0.0
• Included win-dco driver updated to 2.8.0

For Community-maintained packages for Linux distributions see OpenVPN Software Repositories. Note that the Fedora Copr repositories have been moved to the @OpenVPN group account and that there are new repositories available on openSUSE Buildservice.

OpenVPN 2.6.17 -- Released 28 November 2025

The OpenVPN community project team is proud to release OpenVPN 2.6.17. This is a bugfix release containing one security fix.

For details see Changes.rst

Security fixes:

• CVE-2025-13751: Windows/interactive service: fix erroneous exit on error that could be used by a local Windows users to achieve a local denial-of-service

Bug fixes:

• Windows/interactive service: improve service pipe robustness against file access races (uuid) and access by unauthorized processes (ACL).
• upgrade bundled build instruction (vcpkg and patch) for pkcs11-helper to 1.31, fixing a parser bug

Windows MSI changes since 2.6.16-I001:

• Built against OpenSSL 3.6.0
• Included openvpn-gui updated to 11.59.0.0
  • Authorize config before opening the service pipe
  • Remove dependence on pathcch.dll not in Windows 7
• Included win-dco driver updated to 2.8.0

For Community-maintained packages for Linux distributions see OpenVPN Software Repositories.

OpenVPN 2.5.9 -- Released 15 February 2023

The OpenVPN community project team is proud to release OpenVPN 2.5.9. This is a small bugfix release.

For details see Changes.rst

Windows MSI changes since 2.5.8:

• Build against OpenSSL 1.1.1t which contains several security fixes.

Full Release History