CVE-2026-11771

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...

UBUNTU-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...

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...

SUSE CVE-2026-41070

openvpn-auth-oauth2 is a plugin/management interface client for OpenVPN server to handle an OIDC based single sign-on SSO auth flows. From version 1.26.3 to before version 1.27.3, when openvpn-auth-oauth2 is deployed in the experimental plugin mode shared library loaded by OpenVPN via the plugin...

CVE-2026-12932

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...

EUVD-2026-51241

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...

CVE-2026-12932

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...

CVE-2026-12932

CVE-2026-12932 is a memory-leak vulnerability in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0–2.6.20 and 2.7_alpha1–2.7.4 that can be exploited remotely by a flood of crafted packets to cause memory exhaustion/DoS. Public advisories/OSV entries indicate fixes in later OpenVPN releases ...

CVE-2026-12932

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...

CVE-2026-12932

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...

CVE-2026-12932

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...

CVE-2026-12932

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...

CVE-2026-12996

CVE-2026-12996 affects OpenVPN 2.6.0–2.6.20 and 2.7_alpha1–2.7.4, via a use-after-free in ack_write_buf triggered by specific control/auth sequence during TLS session promotion/expiry, potentially causing a crash or memory leak (denial of service). Connected advisories note that updates exist to ...

EUVD-2026-51239

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-2026-12996

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-2026-12996

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-2026-12996

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-2026-12996

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-2026-12996

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-2026-12996

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...