Vulnerabilities (CVE)

Filtered by vendor Openvpn Subscribe
Total 51 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-3824 1 Openvpn 1 Openvpn Access Server 2021-09-29 4.3 MEDIUM 6.1 MEDIUM
OpenVPN Access Server 2.9.0 through 2.9.4 allow remote attackers to inject arbitrary web script or HTML via the web login page URL.
CVE-2021-3613 1 Openvpn 1 Connect 2021-07-09 4.4 MEDIUM 7.8 HIGH
OpenVPN Connect 3.2.0 through 3.3.0 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 (OpenVPNConnect.exe).
CVE-2021-3606 2 Microsoft, Openvpn 2 Windows, Openvpn 2021-07-09 4.4 MEDIUM 7.8 HIGH
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).
CVE-2020-15076 1 Openvpn 1 Private Tunnel 2021-06-02 7.2 HIGH 7.8 HIGH
Private Tunnel installer for macOS version 3.0.1 and older versions may corrupt system critical files it should not have access via symlinks in /tmp.
CVE-2020-15075 1 Openvpn 1 Connect 2021-04-06 3.6 LOW 7.1 HIGH
OpenVPN Connect installer for macOS version 3.2.6 and older may corrupt system critical files it should not have access via symlinks in /tmp.
CVE-2014-5455 2 Openvpn, Privatetunnel 2 Openvpn, Privatetunnel 2020-06-01 6.9 MEDIUM N/A
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-2020-8953 1 Openvpn 1 Openvpn Access Server 2020-05-12 7.5 HIGH 9.8 CRITICAL
OpenVPN Access Server 2.8.x before 2.8.1 allows LDAP authentication bypass (except when a user is enrolled in two-factor authentication).
CVE-2014-8104 5 Canonical, Debian, Mageia and 2 more 6 Ubuntu Linux, Debian Linux, Mageia and 3 more 2020-05-12 6.8 MEDIUM N/A
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.
CVE-2006-2229 1 Openvpn 2 Openvpn, Openvpn Access Server 2020-05-12 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.
CVE-2006-1629 1 Openvpn 2 Openvpn, Openvpn Access Server 2020-05-12 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-2005-3393 1 Openvpn 2 Openvpn, Openvpn Access Server 2020-05-12 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-2005-3409 1 Openvpn 2 Openvpn, Openvpn Access Server 2020-05-12 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-2013-2061 2 Opensuse, Openvpn 3 Opensuse, Openvpn, Openvpn Access Server 2020-05-12 2.6 LOW N/A
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.
CVE-2020-11462 1 Openvpn 1 Openvpn Access Server 2020-05-12 4.3 MEDIUM 7.5 HIGH
An issue was discovered in OpenVPN Access Server before 2.7.0 and 2.8.x before 2.8.3. With the full featured RPC2 interface enabled, it is possible to achieve a temporary DoS state of the management interface when sending an XML Entity Expansion (XEE) payload to the XMLRPC based RPC2 interface. The duration of the DoS state depends on available memory and CPU speed. The default restricted mode of the RPC2 interface is NOT vulnerable.
CVE-2020-9442 2 Microsoft, Openvpn 2 Windows, Connect 2020-03-03 7.2 HIGH 7.8 HIGH
OpenVPN Connect 3.1.0.361 on Windows has Insecure Permissions for %PROGRAMDATA%\OpenVPN Connect\drivers\tap\amd64\win10, which allows local users to gain privileges by copying a malicious drvstore.dll there.
CVE-2017-7508 1 Openvpn 1 Openvpn 2019-10-03 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-2017-7521 1 Openvpn 1 Openvpn 2019-10-03 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-2017-7520 1 Openvpn 1 Openvpn 2019-10-03 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.
CVE-2017-7479 1 Openvpn 1 Openvpn 2019-10-03 4.0 MEDIUM 6.5 MEDIUM
OpenVPN versions before 2.3.15 and before 2.4.2 are vulnerable to reachable assertion when packet-ID counter rolls over resulting into Denial of Service of server by authenticated attacker.
CVE-2016-6329 1 Openvpn 1 Openvpn 2019-07-09 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.