#Vulnerabilities 28
Date Id Summary Products Score Patch Annotated
2021-04-26 CVE-2020-15078 OpenVPN 2.5.1 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks. Ubuntu_linux, Debian_linux, Fedora, Openvpn 7.5
2017-10-04 CVE-2017-12166 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. Debian_linux, Openvpn 9.8
2020-04-27 CVE-2020-11810 An issue was discovered in OpenVPN 2.4.x before 2.4.9. An attacker can inject a data channel v2 (P_DATA_V2) packet using a victim's peer-id. Normally such packets are dropped, but if this packet arrives before the data channel crypto parameters have been initialized, the victim's connection will be dropped. This requires careful timing due to the small time window (usually within a few seconds) between the victim client connection starting and the server PUSH_REPLY response back to the... Debian_linux, Fedora, Openvpn 3.7
2022-03-18 CVE-2022-0547 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. Fedora, Openvpn 9.8
2021-07-12 CVE-2021-3547 OpenVPN 3 Core Library version 3.6 and 3.6.1 allows a man-in-the-middle attacker to bypass the certificate authentication by issuing an unrelated server certificate using the same hostname found in the verify-x509-name option in a client configuration. Openvpn 7.4
2021-07-02 CVE-2021-3606 OpenVPN before version 2.5.3 on Windows allows local users to load arbitrary dynamic loadable libraries via an OpenSSL configuration file if present, which allows the user to run arbitrary code with the same privilege level as the main OpenVPN process (openvpn.exe). Openvpn 7.8
2014-08-25 CVE-2014-5455 Unquoted Windows search path vulnerability in the ptservice service prior to PrivateTunnel version 3.0 (Windows) and OpenVPN Connect version 3.1 (Windows) allows local users to gain privileges via a crafted program.exe file in the %SYSTEMDRIVE% folder. Openvpn, Privatetunnel N/A
2014-12-03 CVE-2014-8104 OpenVPN 2.x before 2.0.11, 2.1.x, 2.2.x before 2.2.3, and 2.3.x before 2.3.6 allows remote authenticated users to cause a denial of service (server crash) via a small control channel packet. Ubuntu_linux, Debian_linux, Mageia, Opensuse, Openvpn, Openvpn_access_server N/A
2013-11-18 CVE-2013-2061 The openvpn_decrypt function in crypto.c in OpenVPN 2.3.0 and earlier, when running in UDP mode, allows remote attackers to obtain sensitive information via a timing attack involving an HMAC comparison function that does not run in constant time and a padding oracle attack on the CBC mode cipher. Opensuse, Openvpn, Openvpn_access_server N/A
2006-05-05 CVE-2006-2229 OpenVPN 2.0.7 and earlier, when configured to use the --management option with an IP that is not, uses a cleartext password for TCP sessions to the management interface, which might allow remote attackers to view sensitive information or cause a denial of service. Openvpn, Openvpn_access_server N/A