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Search Results (78 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2025-3110 1 Openvpn 1 Openvpn Access Server 2026-07-10 5.3 Medium
OpenVPN Access Server 2.7.2 through 3.1.0 accepts bare line-feed sequences inside HTTP header values, allowing remote attackers to perform HTTP request smuggling when deployed behind a reverse proxy
CVE-2026-13698 1 Openvpn 1 Openvpn 2026-07-08 4.9 Medium
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
CVE-2026-13122 1 Openvpn 1 Openvpn 2026-07-08 5.3 Medium
OpenVPN version 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service via a malformed authentication token that triggers a reachable assertion when external-auth is enabled
CVE-2026-40215 1 Openvpn 1 Openvpn 2026-06-16 N/A
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.
CVE-2026-11604 1 Openvpn 1 Ovpn-dco-win 2026-06-11 N/A
An incorrect buffer size calculation in the epoch key generator in OpenVPN ovpn-dco-win version 2.0.0 through 2.8.3 allows a remote authenticated peer to trigger a heap-based buffer overflow and kernel memory corruption via a crafted data packet, resulting in a system crash (denial of service).
CVE-2026-35058 1 Openvpn 1 Openvpn 2026-06-08 N/A
Improper validation of packet length during tls-crypt-v2 key extraction in OpenVPN 2.6.0 through 2.6.19 and 2.7_alpha1 through 2.7.1 allows authenticated attackers to trigger a fatal assertion and cause a denial of service via a specially crafted packet.
CVE-2014-5455 2 Openvpn, Privatetunnel 2 Openvpn, Privatetunnel 2026-05-28 5.3 Medium
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.
CVE-2026-9560 2 Openvpn, Openvpn Inc 2 Connect, Openvpn Connect 2026-05-27 7.8 High
Privilege escalation via background service of OpenVPN Connect 3.5.1 through 3.8.1 on macOS allows attackers to execute arbitrary commands with elevated privileges via local IPC channel
CVE-2008-3459 1 Openvpn 1 Openvpn 2026-04-23 N/A
Unspecified vulnerability in OpenVPN 2.1-beta14 through 2.1-rc8, when running on non-Windows systems, allows remote servers to execute arbitrary commands via crafted (1) lladdr and (2) iproute configuration directives, probably related to shell metacharacters.
CVE-2026-2738 1 Openvpn 1 Ovpn-dco-win 2026-04-17 N/A
Buffer overflow in ovpn‑dco‑win version 2.8.0 allows local attackers to cause a system crash by sending too large packets to the remote peer when the AEAD tag appears at the end of the encrypted packet
CVE-2005-3393 1 Openvpn 2 Openvpn, Openvpn Access Server 2026-04-16 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-2005-2532 1 Openvpn 1 Openvpn 2026-04-16 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-2005-2534 1 Openvpn 1 Openvpn 2026-04-16 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-2005-2531 1 Openvpn 1 Openvpn 2026-04-16 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-2005-2533 1 Openvpn 1 Openvpn 2026-04-16 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-2006-2229 1 Openvpn 2 Openvpn, Openvpn Access Server 2026-04-16 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.
CVE-2006-1629 1 Openvpn 2 Openvpn, Openvpn Access Server 2026-04-16 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-2005-3409 1 Openvpn 2 Openvpn, Openvpn Access Server 2026-04-16 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-2025-15497 1 Openvpn 1 Openvpn 2026-04-15 N/A
Insufficient epoch key slot processing in OpenVPN 2.7_alpha1 through 2.7_rc5 allows remote authenticated users to trigger an assert resulting in a denial of service
CVE-2025-10680 1 Openvpn 1 Openvpn 2026-04-15 8.8 High
OpenVPN 2.7_alpha1 through 2.7_beta1 on POSIX based platforms allows a remote authenticated server to inject shell commands via DNS variables when --dns-updown is in use