Vulnerabilities > Openvpn > Openvpn > 2.4.0
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2023-08-22 | CVE-2020-20813 | Unspecified vulnerability in Openvpn Control Channel in OpenVPN 2.4.7 and earlier allows remote attackers to cause a denial of service via crafted reset packet. | 7.5 |
| 2022-03-18 | CVE-2022-0547 | Improper Authentication vulnerability in multiple products 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. | 9.8 |
| 2021-07-02 | CVE-2021-3606 | Uncontrolled Search Path Element vulnerability in Openvpn 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). | 4.4 |
| 2021-04-26 | CVE-2020-15078 | Missing Authentication for Critical Function vulnerability in multiple products 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. | 7.5 |
| 2020-04-27 | CVE-2020-11810 | Race Condition vulnerability in multiple products An issue was discovered in OpenVPN 2.4.x before 2.4.9. | 3.7 |
| 2018-05-01 | CVE-2018-9336 | Double Free vulnerability in multiple products openvpnserv.exe (aka the interactive service helper) in OpenVPN 2.4.x before 2.4.6 allows a local attacker to cause a double-free of memory by sending a malformed request to the interactive service. | 4.6 |
| 2018-03-16 | CVE-2018-7544 | Use of Externally-Controlled Format String vulnerability in Openvpn A cross-protocol scripting issue was discovered in the management interface in OpenVPN through 2.4.5. | 9.1 |
| 2017-10-04 | CVE-2017-12166 | Out-of-bounds Write vulnerability in multiple products 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. | 6.8 |
| 2017-06-27 | CVE-2017-7522 | NULL Pointer Dereference vulnerability in Openvpn OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL character. | 4.0 |
| 2017-06-27 | CVE-2017-7521 | Missing Release of Resource after Effective Lifetime vulnerability in Openvpn 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(). | 4.3 |