CVE-2026-13379

The Windows interactive service in OpenVPN 2.7alpha1 through 2.7.4 allows remote attackers to cause persistent DNS state pollution or a service crash via a crafted search domain during the disconnection process...

EUVD-2026-51233

The Windows interactive service in OpenVPN 2.7alpha1 through 2.7.4 allows remote attackers to cause persistent DNS state pollution or a service crash via a crafted search domain during the disconnection process...

OPENSUSE-SU-2026:21488-1 Security update for openvpn

This update for openvpn fixes the following issues: - CVE-2026-13122: denial of service via a malformed authentication token that triggers a reachable assertion when external-auth is enabled bsc1270413. - CVE-2026-13698: denial of service via memory leak triggered by remote attackers with a valid...

CVE-2026-13117: Use After Free

An incomplete guard in OpenVPN 2.6.0 through 2.6.20 and 2.7alpha1 through 2.7.4 allows remote authenticated peers to trigger a use-after-free during TLS session promotion, potentially leading to a denial of service or memory leakage...

PT-2026-66521

Name of the Vulnerable Software and Affected Versions OpenVPN versions 2.7 alpha1 through 2.7.4 Description The Windows interactive service contains a flaw that allows remote attackers to trigger a service crash or persistent DNS state pollution. This occurs when a crafted search domain is...

CVE-2026-11771: Off-by-one Error

OpenVPN version 2.1.0 through 2.6.20 and 2.7alpha1 through 2.7.4 allows attackers via an off-by-one buffer write in the NTLM proxy authentication to potentially cause a crash via a crafted NTLM response from a malicious proxy server...

CVE-2026-13379: Improper Neutralization of Value Delimiters

The Windows interactive service in OpenVPN 2.7alpha1 through 2.7.4 allows remote attackers to cause persistent DNS state pollution or a service crash via a crafted search domain during the disconnection process...

CVE-2026-12996: Use After Free

A use-after-free in OpenVPN 2.6.0 through 2.6.20 and 2.7alpha1 through 2.7.4 allows remote authenticated peers to potentially cause a denial of service or leak memory via crafted packets during TLS session promotion or expiry...

CVE-2026-12932: Missing Release of Memory after Effective Lifetime

A memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2.7alpha1 through 2.7.4 allows remote attackers to cause a denial of service memory exhaustion via a flood of crafted packets...

Security update for openvpn

This update for openvpn fixes the following issues: CVE-2026-13122: denial of service via a malformed authentication token that triggers a reachable assertion when external-auth is enabled bsc1270413. CVE-2026-13698: denial of service via memory leak triggered by remote attackers with a valid...

SUSE-SU-2026:3407-1 Security update for openvpn

This update for openvpn fixes the following issues: - CVE-2026-13122: denial of service via a malformed authentication token that triggers a reachable assertion when external-auth is enabled bsc1270413. - CVE-2026-13698: denial of service via memory leak triggered by remote attackers with a valid...

vopono v0.10.19

vopono is a tool to run applications through VPN tunnels via temporary network namespaces. This allows you to run only a handful of applications through different VPNs simultaneously, whilst keeping your main connection as normal. vopono includes built-in killswitches for both Wireguard and...

SUSE CVE-2026-64043

In the Linux kernel, the following vulnerability has been resolved: ovpn: fix race between deleting interface and adding new peer While deleting an existing ovpn interface, there is a very narrow window where adding a new peer via netlink may cause the netdevice to hang and prevent its...

SUSE CVE-2026-64045

In the Linux kernel, the following vulnerability has been resolved: ovpn: tcp - use cached peer pointer in ovpntcpclose ovpntcpclose loads the ovpnsocket via rcudereferenceskuserdata under rcureadlock, takes a reference on sock-peer, caches the peer pointer in a local, and drops the read lock. It...

CVE-2026-64044

A flaw was found in the Linux kernel's OpenVPN ovpn module. An error in the ovpnnlpeernewdoit function's error handling for TCP connections can lead to a use-after-free vulnerability. This occurs because the peer's memory is prematurely released while userspace processes may still hold active...

CVE-2026-64043

A flaw was found in the Linux kernel's ovpn module. A race condition can occur when an ovpn interface is being deleted while a new peer is simultaneously added via netlink. This timing issue may cause the network device to become unresponsive, preventing its proper removal and leading to a denial...

CVE-2026-64045

A flaw was found in the Linux kernel's OpenVPN ovpn TCP module. A race condition in the ovpntcpclose function allows it to access memory after it has been freed. This vulnerability arises when the function attempts to use a socket peer pointer after its associated socket object has been...

Linux Distros Unpatched Vulnerability : CVE-2026-64044

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: ovpn: respect peer refcount in CMDNEWPEER error path ovpnnlpeernewdoit's error path calls...

Amazon Linux 2023 : openvpn, openvpn-devel (ALAS2023-2026-1990)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1990 advisory. An attacker controlling an HTTP proxy or performing MITM on the plaintext pre-TLS proxy connection can trigger a single 0-byte overrun to a buffer on the stack by sending a crafted NTLM Type 2...

Important: openvpn

Issue Overview: An attacker controlling an HTTP proxy or performing MITM on the plaintext pre-TLS proxy connection can trigger a single 0-byte overrun to a buffer on the stack by sending a crafted NTLM Type 2 challenge response. CVE-2026-11771 If the active TLS session has a pending dedicated ACK...