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39 vulnerabilities found for by OpenVPN
CVE-2026-63650 (GCVE-0-2026-63650)
Vulnerability from cvelistv5
Published
2026-08-14 22:13
Modified
2026-08-17 15:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
OpenVPN 2.7_alpha1 through 2.7.5 using mbedTLS allows remote authenticated users to be misidentified by ignoring the configured X.509 username identity lookup field
References
| URL | Tags | |
|---|---|---|
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CVE-2026-63649 (GCVE-0-2026-63649)
Vulnerability from cvelistv5
Published
2026-08-14 22:13
Modified
2026-08-17 15:38
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-183 - Permissive list of allowed inputs
Summary
The Windows interactive service in OpenVPN 2.4.0 through 2.6.21 and 2.7_alpha1 through 2.7.5 allows local authenticated users to bypass the trusted configuration directory constraint and load arbitrary configuration files via crafted options that bypass whitelist checks
References
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CVE-2026-12932 (GCVE-0-2026-12932)
Vulnerability from cvelistv5
Published
2026-07-30 16:42
Modified
2026-07-30 18:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-401 - Missing release of memory after effective lifetime
Summary
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 a denial of service (memory exhaustion) via a flood of crafted packets
References
Impacted products
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CVE-2026-12996 (GCVE-0-2026-12996)
Vulnerability from cvelistv5
Published
2026-07-30 16:38
Modified
2026-07-30 18:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
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 service or leak memory via crafted packets during TLS session promotion or expiry
References
Impacted products
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CVE-2026-11771 (GCVE-0-2026-11771)
Vulnerability from cvelistv5
Published
2026-07-30 16:36
Modified
2026-07-30 18:04
Severity ?
VLAI Severity ?
EPSS score ?
Summary
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 potentially cause a crash via a crafted NTLM response from a malicious proxy server
References
Impacted products
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CVE-2026-13117 (GCVE-0-2026-13117)
Vulnerability from cvelistv5
Published
2026-07-30 16:32
Modified
2026-07-30 18:08
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use after free
Summary
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 TLS session promotion, potentially leading to a denial of service or memory leakage
References
Impacted products
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CVE-2026-13379 (GCVE-0-2026-13379)
Vulnerability from cvelistv5
Published
2026-07-30 16:28
Modified
2026-07-30 18:09
Severity ?
VLAI Severity ?
EPSS score ?
Summary
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 crash via a crafted search domain during the disconnection process
References
| URL | Tags | |
|---|---|---|
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CVE-2025-3110 (GCVE-0-2025-3110)
Vulnerability from cvelistv5
Published
2026-07-08 16:19
Modified
2026-07-08 16:30
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-444 - Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling')
Summary
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
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| OpenVPN | Access Server |
Version: 2.7.2 ≤ 3.1.0 |
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CVE-2026-13122 (GCVE-0-2026-13122)
Vulnerability from cvelistv5
Published
2026-07-06 14:32
Modified
2026-07-06 15:51
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-617 - Reachable Assertion
Summary
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
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-13698 (GCVE-0-2026-13698)
Vulnerability from cvelistv5
Published
2026-07-06 14:13
Modified
2026-07-06 15:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
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
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-11604 (GCVE-0-2026-11604)
Vulnerability from cvelistv5
Published
2026-06-10 21:04
Modified
2026-06-11 13:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
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).
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| OpenVPN | ovpn-dco-win |
Version: 2.0.0 ≤ 2.5.8 |
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CVE-2026-40215 (GCVE-0-2026-40215)
Vulnerability from cvelistv5
Published
2026-06-08 19:59
Modified
2026-06-16 12:24
Severity ?
VLAI Severity ?
EPSS score ?
Summary
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.
References
Impacted products
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CVE-2026-35058 (GCVE-0-2026-35058)
Vulnerability from cvelistv5
Published
2026-06-08 19:29
Modified
2026-06-08 19:49
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-617 - Reachable assertion
Summary
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.
References
Impacted products
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CVE-2026-2738 (GCVE-0-2026-2738)
Vulnerability from cvelistv5
Published
2026-02-19 20:00
Modified
2026-02-20 20:00
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-131 - Incorrect Calculation of Buffer Size
Summary
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
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| OpenVPN | ovpn-dco-win |
Version: 2.8.0 |
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CVE-2025-15497 (GCVE-0-2025-15497)
Vulnerability from cvelistv5
Published
2026-01-30 18:06
Modified
2026-01-30 19:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-617 - Reachable Assertion
Summary
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
References
| URL | Tags | |
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CVE-2025-13086 (GCVE-0-2025-13086)
Vulnerability from cvelistv5
Published
2025-12-03 19:54
Modified
2025-12-12 13:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-940 - Improper Verification of Source of a Communication Channel
Summary
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 session from a different IP address which did not initiate the connection resulting in a denial of service for the originating client
References
Impacted products
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CVE-2025-13751 (GCVE-0-2025-13751)
Vulnerability from cvelistv5
Published
2025-12-03 16:22
Modified
2025-12-12 13:56
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
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 connect to the service and trigger an error causing a local denial of service.
References
Impacted products
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CVE-2025-12106 (GCVE-0-2025-12106)
Vulnerability from cvelistv5
Published
2025-12-01 12:43
Modified
2025-12-01 18:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-126 - Buffer Over-read
Summary
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
References
| URL | Tags | |
|---|---|---|
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CVE-2025-50055 (GCVE-0-2025-50055)
Vulnerability from cvelistv5
Published
2025-10-27 13:39
Modified
2025-10-30 18:23
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
Cross-site scripting (XSS) vulnerability in the SAML Authentication module in OpenVPN Access Server version 2.14.0 through 2.14.3 allows configured remote SAML Assertion Consumer Service (ACS) endpoint servers to inject arbitrary web script or HTML via the RelayState parameter
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| OpenVPN | Access Server |
Version: 2.14.0 ≤ 2.14.3 |
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CVE-2025-10680 (GCVE-0-2025-10680)
Vulnerability from cvelistv5
Published
2025-10-24 10:06
Modified
2026-02-26 16:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Summary
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
References
| URL | Tags | |
|---|---|---|
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CVE-2025-50054 (GCVE-0-2025-50054)
Vulnerability from cvelistv5
Published
2025-06-20 06:29
Modified
2025-06-23 15:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
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 control message buffer to the kernel driver resulting in a system crash
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| OpenVPN | ovpn-dco-win |
Version: 0 ≤ Version: 0 ≤ |
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CVE-2025-3908 (GCVE-0-2025-3908)
Vulnerability from cvelistv5
Published
2025-05-19 14:59
Modified
2025-05-20 18:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Summary
The configuration initialization tool in OpenVPN 3 Linux v20 through v24 on Linux allows a local attacker to use symlinks pointing at an arbitrary directory which will change the ownership and permissions of that destination directory.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| OpenVPN | OpenVPN 3 Linux |
Version: v20 ≤ v24 |
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"title": "CISA ADP Vulnrichment"
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CVE-2024-4877 (GCVE-0-2024-4877)
Vulnerability from cvelistv5
Published
2025-04-03 15:11
Modified
2025-04-04 13:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-268 - Privilege Chaining
Summary
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 would connect to allowing it to escalate its privileges
References
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CVE-2025-2704 (GCVE-0-2025-2704)
Vulnerability from cvelistv5
Published
2025-04-02 21:00
Modified
2025-10-23 10:53
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Summary
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 replaying network packets in the early handshake phase
References
| URL | Tags | |
|---|---|---|
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"references": [
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}
],
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},
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"timestamp": "2025-04-07T17:20:44.473236Z",
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"vendor": "OpenVPN",
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],
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},
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CVE-2024-13454 (GCVE-0-2024-13454)
Vulnerability from cvelistv5
Published
2025-01-20 21:07
Modified
2025-01-21 20:01
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-326 - Inadequate Encryption Strength
Summary
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 using OpenSSL 3
References
{
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"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
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}
},
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CVE-2024-5198 (GCVE-0-2024-5198)
Vulnerability from cvelistv5
Published
2025-01-15 12:57
Modified
2025-01-15 14:49
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
OpenVPN ovpn-dco for Windows version 1.1.1 allows an unprivileged local attacker to send I/O control messages with invalid data to the driver resulting in a NULL pointer dereference leading to a system halt.
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| OpenVPN | ovpn-dco |
Version: 1.1.1 |
|||||||
|
|||||||||
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CVE-2024-8474 (GCVE-0-2024-8474)
Vulnerability from cvelistv5
Published
2025-01-06 14:33
Modified
2025-01-06 16:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-212 - Improper Removal of Sensitive Information Before Storage or Transfer
Summary
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 unauthorized actor can use to decrypt the VPN traffic
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| OpenVPN | OpenVPN Connect |
Version: 0 |
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CVE-2024-5594 (GCVE-0-2024-5594)
Vulnerability from cvelistv5
Published
2025-01-06 13:52
Modified
2025-11-03 20:48
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1287 - Improper Validation of Specified Type of Input
Summary
OpenVPN before 2.6.11 does not santize PUSH_REPLY messages properly which an attacker controlling the server can use to inject unexpected arbitrary data ending up in client logs.
References
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CVE-2024-28882 (GCVE-0-2024-28882)
Vulnerability from cvelistv5
Published
2024-07-08 21:30
Modified
2024-11-01 20:38
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Summary
OpenVPN from 2.6.0 through 2.6.10 in a server role accepts multiple exit notifications from authenticated clients which will extend the validity of a closing session
References
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CVE-2024-1305 (GCVE-0-2024-1305)
Vulnerability from cvelistv5
Published
2024-07-08 17:27
Modified
2024-08-23 03:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Summary
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 overflow memory buffers, resulting in a bug check and potentially
arbitrary code execution in kernel space
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| OpenVPN | tap-windows6 |
Version: 9.26 or earlier |
|||||||
|
|||||||||
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