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A memory leak in OpenVPN version 2.5.0 through 2.5.11, 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers with a valid tls-crypt-v2 client key to potentially cause a denial of service Join the discussion | GCVE Database | 07/06/2026, 15:30:48 UTC Added: 07/06/2026, 23:03:51 UTC |
An incomplete guard in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 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 Join the discussion | GCVE Database | 07/03/2026, 00:00:00 UTC Added: 07/30/2026, 23:28:26 UTC |
A memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service (memory exhaustion) via a flood of crafted packets Join the discussion | GCVE Database | 07/03/2026, 00:00:00 UTC Added: 07/30/2026, 23:28:26 UTC |
A use-after-free in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 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 Join the discussion | GCVE Database | 07/03/2026, 00:00:00 UTC Added: 07/30/2026, 23:26:04 UTC |
A race condition in OpenVPN 2.6.0 through 2.6.19 and 2.7_alpha1 through 2.7.1 allows remote attackers to potentially cause a server crash or leak heap memory via a use-after-free triggered during TLS session promotion. Join the discussion | GCVE Database | 04/23/2026, 00:00:00 UTC Added: 08/11/2026, 18:54:14 UTC |
CVE-2023-46850 is a use-after-free vulnerability in OpenVPN Community Edition versions 2.6.0 through 2.6.6. This flaw arises when network buffers are sent to a remote peer, potentially causing undefined behavior, memory leaks, or remote code execution. Exploitation does not require authentication but involves network interaction with a vulnerable OpenVPN server or client. Although no known exploits are currently reported in the wild, successful exploitation could compromise confidentiality, integrity, and availability of VPN communications. European organizations relying on OpenVPN for secure remote access and site-to-site VPNs are at risk, especially critical infrastructure and enterprises with high VPN usage. Mitigation involves promptly updating to patched versions once available, employing network-level filtering to restrict OpenVPN traffic, and monitoring for anomalous VPN behavior. Join the discussion | CVE Database V5 | 11/11/2023, 00:15:07 UTC Added: 12/16/2025, 17:18:53 UTC |
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