Filtered by vendor Openvpn
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Total
63 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2024-13454 | 1 Openvpn | 1 Easy-rsa | 2025-08-22 | N/A | 5.3 MEDIUM |
| Weak encryption algorithm in Easy-RSA version 3.0.5 through 3.1.7 allows a local attacker to more easily bruteforce the private CA key when created using OpenSSL 3 | |||||
| CVE-2024-1305 | 1 Openvpn | 1 Tap-windows6 | 2025-08-22 | N/A | 9.8 CRITICAL |
| tap-windows6 driver version 9.26 and earlier does not properly check the size data of incomming write operations which an attacker can use to overflow memory buffers, resulting in a bug check and potentially arbitrary code execution in kernel space | |||||
| CVE-2025-50054 | 1 Openvpn | 1 Ovpn-dco-win | 2025-08-21 | N/A | 5.5 MEDIUM |
| Buffer overflow in OpenVPN ovpn-dco-win version 1.3.0 and earlier and version 2.5.8 and earlier allows a local user process to send a too large control message buffer to the kernel driver resulting in a system crash | |||||
| CVE-2023-6247 | 1 Openvpn | 1 Openvpn 3 | 2025-08-21 | N/A | 6.5 MEDIUM |
| The PKCS#7 parser in OpenVPN 3 Core Library versions through 3.8.3 did not properly validate the parsed data, which would result in the application crashing. | |||||
| CVE-2025-3908 | 2 Linux, Openvpn | 2 Linux Kernel, Openvpn3linux | 2025-06-12 | N/A | 6.2 MEDIUM |
| The configuration initialization tool in OpenVPN 3 Linux v20 through v24 on Linux allows a local attacker to use symlinks pointing at an arbitrary directory which will change the ownership and permissions of that destination directory. | |||||
| CVE-2023-46849 | 3 Debian, Fedoraproject, Openvpn | 4 Debian Linux, Fedora, Openvpn and 1 more | 2025-06-11 | N/A | 7.5 HIGH |
| Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service. | |||||
| CVE-2024-8474 | 1 Openvpn | 1 Connect | 2025-06-10 | N/A | 7.5 HIGH |
| OpenVPN Connect before version 3.5.0 can contain the configuration profile's clear-text private key which is logged in the application log, which an unauthorized actor can use to decrypt the VPN traffic | |||||
| CVE-2024-5594 | 1 Openvpn | 1 Openvpn | 2025-06-10 | N/A | 9.1 CRITICAL |
| OpenVPN before 2.6.11 does not santize PUSH_REPLY messages properly which an attacker controlling the server can use to inject unexpected arbitrary data ending up in client logs. | |||||
| CVE-2024-28882 | 1 Openvpn | 1 Openvpn | 2025-06-10 | N/A | 4.3 MEDIUM |
| OpenVPN from 2.6.0 through 2.6.10 in a server role accepts multiple exit notifications from authenticated clients which will extend the validity of a closing session | |||||
| CVE-2024-5198 | 1 Openvpn | 1 Ovpn-dco-win | 2025-06-10 | N/A | 3.3 LOW |
| OpenVPN ovpn-dco for Windows version 1.1.1 allows an unprivileged local attacker to send I/O control messages with invalid data to the driver resulting in a NULL pointer dereference leading to a system halt. | |||||
| CVE-2025-2704 | 1 Openvpn | 1 Openvpn | 2025-05-24 | N/A | 7.5 HIGH |
| OpenVPN version 2.6.1 through 2.6.13 in server mode using TLS-crypt-v2 allows remote attackers to trigger a denial of service by corrupting and replaying network packets in the early handshake phase | |||||
| CVE-2023-7235 | 1 Openvpn | 1 Openvpn Gui | 2025-05-06 | N/A | 8.4 HIGH |
| The OpenVPN GUI installer before version 2.6.9 did not set the proper access control restrictions to the installation directory of OpenVPN binaries when using a non-standard installation path, which allows an attacker to replace binaries to run arbitrary executables. | |||||
| CVE-2024-4877 | 2 Microsoft, Openvpn | 2 Windows, Openvpn | 2025-04-29 | N/A | 8.8 HIGH |
| OpenVPN version 2.4.0 through 2.6.10 on Windows allows an external, lesser privileged process to create a named pipe which the OpenVPN GUI component would connect to allowing it to escalate its privileges | |||||
| CVE-2022-0547 | 3 Debian, Fedoraproject, Openvpn | 3 Debian Linux, Fedora, Openvpn | 2025-04-23 | 7.5 HIGH | 9.8 CRITICAL |
| OpenVPN 2.1 until v2.4.12 and v2.5.6 may enable authentication bypass in external authentication plug-ins when more than one of them makes use of deferred authentication replies, which allows an external user to be granted access with only partially correct credentials. | |||||
| CVE-2017-12166 | 2 Debian, Openvpn | 2 Debian Linux, Openvpn | 2025-04-20 | 6.8 MEDIUM | 9.8 CRITICAL |
| OpenVPN versions before 2.3.3 and 2.4.x before 2.4.4 are vulnerable to a buffer overflow vulnerability when key-method 1 is used, possibly resulting in code execution. | |||||
| CVE-2017-7521 | 1 Openvpn | 1 Openvpn | 2025-04-20 | 4.3 MEDIUM | 5.9 MEDIUM |
| OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service due to memory exhaustion caused by memory leaks and double-free issue in extract_x509_extension(). | |||||
| CVE-2017-7508 | 1 Openvpn | 1 Openvpn | 2025-04-20 | 5.0 MEDIUM | 7.5 HIGH |
| OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service when receiving malformed IPv6 packet. | |||||
| CVE-2016-6329 | 1 Openvpn | 1 Openvpn | 2025-04-20 | 4.3 MEDIUM | 5.9 MEDIUM |
| OpenVPN, when using a 64-bit block cipher, makes it easier for remote attackers to obtain cleartext data via a birthday attack against a long-duration encrypted session, as demonstrated by an HTTP-over-OpenVPN session using Blowfish in CBC mode, aka a "Sweet32" attack. | |||||
| CVE-2017-7478 | 1 Openvpn | 1 Openvpn | 2025-04-20 | 5.0 MEDIUM | 7.5 HIGH |
| OpenVPN version 2.3.12 and newer is vulnerable to unauthenticated Denial of Service of server via received large control packet. Note that this issue is fixed in 2.3.15 and 2.4.2. | |||||
| CVE-2017-7520 | 1 Openvpn | 1 Openvpn | 2025-04-20 | 4.0 MEDIUM | 7.4 HIGH |
| OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service and/or possibly sensitive memory leak triggered by man-in-the-middle attacker. | |||||