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stack.watch can notify you when security vulnerabilities are reported in Openvpn Openvpn. You can add multiple products that you use with Openvpn to create your own personal software stack watcher.

By the Year

In 2020 there have been 1 vulnerability in Openvpn Openvpn with an average score of 3.7 out of ten. Last year Openvpn had 0 security vulnerabilities published. That is, 1 more vulnerability have already been reported in 2020 as compared to last year.

Year Vulnerabilities Average Score
2020 1 3.70
2019 0 0.00
2018 2 8.45

It may take a day or so for new Openvpn vulnerabilities to show up. Additionally vulnerabilities may be tagged under a different product or component name.

Latest Openvpn Openvpn Security Vulnerabilities

An issue was discovered in OpenVPN 2.4.x before 2.4.9

CVE-2020-11810 3.7 - Low - April 27, 2020

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 client. This attack will only work if Negotiable Cipher Parameters (NCP) is in use.

Race Condition

openvpnserv.exe (aka the interactive service helper) in OpenVPN 2.4.x before 2.4.6

CVE-2018-9336 7.8 - High - May 01, 2018

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. This could cause a denial-of-service through memory corruption or possibly have unspecified other impact including privilege escalation.

Double-free

** DISPUTED ** A cross-protocol scripting issue was discovered in the management interface in OpenVPN through 2.4.5

CVE-2018-7544 9.1 - Critical - March 16, 2018

** DISPUTED ** A cross-protocol scripting issue was discovered in the management interface in OpenVPN through 2.4.5. When this interface is enabled over TCP without a password, and when no other clients are connected to this interface, attackers can execute arbitrary management commands, obtain sensitive information, or cause a denial of service (SIGTERM) by triggering XMLHttpRequest actions in a web browser. This is demonstrated by a multipart/form-data POST to http://localhost:23000 with a "signal SIGTERM" command in a TEXTAREA element. NOTE: The vendor disputes that this is a vulnerability. They state that this is the result of improper configuration of the OpenVPN instance rather than an intrinsic vulnerability, and now more explicitly warn against such configurations in both the management-interface documentation, and with a runtime warning.

Uncontrolled Format String

Unquoted Windows search path vulnerability in the ptservice service prior to PrivateTunnel version 3.0 (Windows) and OpenVPN Connect version 3.1 (Windows)

CVE-2014-5455 - August 25, 2014

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.<a href="http://cwe.mitre.org/data/definitions/428.html" target="_blank">CWE-428: Unquoted Search Path or Element</a>

Unquoted Search Path or Element