Vulnerabilities (CVE)

Filtered by vendor Openvpn Subscribe
Total 48 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2005-3409 1 Openvpn 2 Openvpn, Openvpn Access Server 2023-12-10 5.0 MEDIUM N/A
OpenVPN 2.x before 2.0.4, when running in TCP mode, allows remote attackers to cause a denial of service (segmentation fault) by forcing the accept function call to return an error status, which leads to a null dereference in an exception handler.
CVE-2006-1629 1 Openvpn 2 Openvpn, Openvpn Access Server 2023-12-10 9.0 HIGH N/A
OpenVPN 2.0 through 2.0.5 allows remote malicious servers to execute arbitrary code on the client by using setenv with the LD_PRELOAD environment variable.
CVE-2005-2534 1 Openvpn 1 Openvpn 2023-12-10 2.6 LOW N/A
Race condition in OpenVPN before 2.0.1, when --duplicate-cn is not enabled, allows remote attackers to cause a denial of service (server crash) via simultaneous TCP connections from multiple clients that use the same client certificate.
CVE-2005-3393 1 Openvpn 2 Openvpn, Openvpn Access Server 2023-12-10 7.5 HIGH N/A
Format string vulnerability in the foreign_option function in options.c for OpenVPN 2.0.x allows remote clients to execute arbitrary code via format string specifiers in a push of the dhcp-option command option.
CVE-2005-2533 1 Openvpn 1 Openvpn 2023-12-10 2.1 LOW N/A
OpenVPN before 2.0.1, when running in "dev tap" Ethernet bridging mode, allows remote authenticated clients to cause a denial of service (memory exhaustion) via a flood of packets with a large number of spoofed MAC addresses.
CVE-2005-2532 1 Openvpn 1 Openvpn 2023-12-10 5.0 MEDIUM N/A
OpenVPN before 2.0.1 does not properly flush the OpenSSL error queue when a packet can not be decrypted by the server, which allows remote authenticated attackers to cause a denial of service (client disconnection) via a large number of packets that can not be decrypted.
CVE-2005-2531 1 Openvpn 1 Openvpn 2023-12-10 5.0 MEDIUM N/A
OpenVPN before 2.0.1, when running with "verb 0" and without TLS authentication, does not properly flush the OpenSSL error queue when a client fails certificate authentication to the server and causes the error to be processed by the wrong client, which allows remote attackers to cause a denial of service (client disconnection) via a large number of failed authentication attempts.
CVE-2006-2229 1 Openvpn 2 Openvpn, Openvpn Access Server 2023-12-10 4.0 MEDIUM N/A
OpenVPN 2.0.7 and earlier, when configured to use the --management option with an IP that is not 127.0.0.1, 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.