Vulnerability index

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Openvpn CRITICAL 9.1
CVE-2026-13379

The Windows interactive service in OpenVPN 2.7_alpha1 through 2.7.4 allows remote attackers to cause persistent DNS state pollution or a service cras…

Fix: 2.7.5+
Fix from $2,300 2026-07-30
Openvpn HIGH 8.1
CVE-2026-12996

A use-after-free in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote authenticated peers to potentially cause a denial of serv…

Fix: 2.6.21 / 2.7.5+
Fix from $1,950 2026-07-30
Openvpn HIGH 8.1
CVE-2026-13117

An incomplete guard in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote authenticated peers to trigger a use-after-free during…

Fix: 2.6.21 / 2.7.5+
Fix from $1,950 2026-07-30
Openvpn HIGH 8.1
CVE-2026-12932

A memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause…

Fix: 2.6.21 / 2.7.5+
Fix from $1,950 2026-07-30
Openvpn HIGH 7.5
CVE-2026-11771

OpenVPN version 2.1.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows attackers via an off-by-one buffer write in the NTLM proxy authentication to…

Fix: 2.6.21 / 2.7.5+
Fix from $1,950 2026-07-30
Openvpn Access Server HIGH 7.5
CVE-2025-3110

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 reque…

Fix: after 3.1.0
Fix from $1,950 2026-07-08
Openvpn MEDIUM 5.3
CVE-2026-13122

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…

Fix: 2.6.21 / 2.7.5+
Fix from $1,600 2026-07-06
Openvpn HIGH 7.5
CVE-2026-13698

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-cry…

Fix: 2.6.21 / 2.7.5+
Fix from $1,950 2026-07-06
Openvpn MEDIUM 6.5
CVE-2026-11604

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 pee…

Fix: after 2.8.3
Fix from $1,600 2026-06-10
Openvpn HIGH 7.4
CVE-2026-40215

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 hea…

Fix: 2.6.20 / 2.7.2+
Fix from $1,950 2026-06-08
Openvpn MEDIUM 6.5
CVE-2026-35058

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 authentic…

Fix: 2.6.20 / 2.7.2+
Fix from $1,600 2026-06-08
Connect HIGH 7.8
CVE-2026-9560

Privilege escalation via background service of OpenVPN Connect 3.5.1 through 3.8.1 on macOS allows attackers to execute arbitrary commands with eleva…

Fix: 3.8.2+
Fix from $1,950 2026-05-26
Openvpn HIGH 7.5
CVE-2025-13086

Improper validation of source IP addresses in OpenVPN version 2.6.0 through 2.6.15 and 2.7_alpha1 through 2.7_rc1 allows an attacker to open a sessio…

Fix: 2.6.16+
Fix from $1,950 2025-12-03
Openvpn MEDIUM 5.5
CVE-2025-13751

Interactive service agent in OpenVPN version 2.5.0 through 2.6.16 and 2.7_alpha1 through 2.7_rc2 on Windows allows a local authenticated user to conn…

Fix: 2.6.17+
Fix from $1,600 2025-12-03
Openvpn CRITICAL 9.1
CVE-2025-12106

Insufficient argument validation in OpenVPN 2.7_alpha1 through 2.7_rc1 allows an attacker to trigger a heap buffer over-read when parsing IP addresses

Mitigation only
Fix from $2,300 2025-12-01
Ovpn Dco Win MEDIUM 5.5
CVE-2025-50054

Buffer overflow in OpenVPN ovpn-dco-win version 1.3.0 and earlier and version 2.5.8 and earlier allows a local user process to send a too large contr…

Fix: after 2.5.8
Fix from $1,600 2025-06-20
Openvpn3linux MEDIUM 6.2
CVE-2025-3908

The configuration initialization tool in OpenVPN 3 Linux v20 through v24 on Linux allows a local attacker to use symlinks pointing at an arbitrary di…

Fix: after 24
Fix from $1,600 2025-05-19
Openvpn HIGH 8.8
CVE-2024-4877

OpenVPN version 2.4.0 through 2.6.10 on Windows allows an external, lesser privileged process to create a named pipe which the OpenVPN GUI component …

Fix: 2.6.11+
Fix from $1,950 2025-04-03
Openvpn HIGH 7.5
CVE-2025-2704

OpenVPN version 2.6.1 through 2.6.13 in server mode using TLS-crypt-v2 allows remote attackers to trigger a denial of service by corrupting and repla…

Fix: after 2.6.13
Fix from $1,950 2025-04-02
Easy Rsa MEDIUM 5.3
CVE-2024-13454

Weak encryption algorithm in Easy-RSA version 3.0.5 through 3.1.7 allows a local attacker to more easily bruteforce the private CA key when created u…

Fix: after 3.1.7
Fix from $1,600 2025-01-20
Connect HIGH 7.5
CVE-2024-8474

OpenVPN Connect before version 3.5.0 can contain the configuration profile's clear-text private key which is logged in the application log, which an …

Fix: 3.5.0+
Fix from $1,950 2025-01-06
Openvpn CRITICAL 9.1
CVE-2024-5594

OpenVPN before 2.6.11 does not santize PUSH_REPLY messages properly which an attacker controlling the server can use to inject unexpected arbitrary d…

Fix: 2.6.11+
Fix from $2,300 2025-01-06
Tap Windows6 CRITICAL 9.8
CVE-2024-1305EPSS 15%

tap-windows6 driver version 9.26 and earlier does not properly check the size data of incomming write operations which an attacker can use to overf…

Fix: after 9.26.0
Fix from $2,300 2024-07-08
Openvpn CRITICAL 9.8
CVE-2024-27903EPSS 9%

OpenVPN plug-ins on Windows with OpenVPN 2.6.9 and earlier could be loaded from any directory, which allows an attacker to load an arbitrary plug-in …

Fix: 2.5.10 / 2.6.10+
Fix from $2,300 2024-07-08
Openvpn HIGH 7.8
CVE-2024-27459EPSS 8%

The interactive service in OpenVPN 2.6.9 and earlier allows an attacker to send data causing a stack overflow which can be used to execute arbitrary …

Fix: 2.5.10 / 2.6.10+
Fix from $1,950 2024-07-08
Openvpn HIGH 7.5
CVE-2024-24974EPSS 10%

The interactive service in OpenVPN 2.6.9 and earlier allows the OpenVPN service pipe to be accessed remotely, which allows a remote attacker to inter…

Fix: 2.5.10 / 2.6.10+
Fix from $1,950 2024-07-08
Openvpn 3 MEDIUM 6.5
CVE-2023-6247

The PKCS#7 parser in OpenVPN 3 Core Library versions through 3.8.3 did not properly validate the parsed data, which would result in the application c…

Fix: 3.8.4+
Fix from $1,600 2024-02-29
Openvpn Gui HIGH 8.4
CVE-2023-7235

The OpenVPN GUI installer before version 2.6.9 did not set the proper access control restrictions to the installation directory of OpenVPN binaries w…

Fix: 2.6.9+
Fix from $1,950 2024-02-21
Connect HIGH 7.8
CVE-2023-7245

The nodejs framework in OpenVPN Connect 3.0 through 3.4.3 (Windows)/3.4.7 (macOS) was not properly configured, which allows a local user to execute a…

Fix: 3.4.4 / 3.4.8+
Fix from $1,950 2024-02-20
Connect HIGH 7.8
CVE-2023-7224

OpenVPN Connect version 3.0 through 3.4.6 on macOS allows local users to execute code in external third party libraries using the DYLD_INSERT_LIBRARI…

Fix: after 3.4.6
Fix from $1,950 2024-01-08