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21 vulnerabilities found for OpenVPN 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-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-2026-40215 (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-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-2025-10680 (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-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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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-2023-7235 (GCVE-0-2023-7235)
Vulnerability from cvelistv5
Published
2024-02-21 10:55
Modified
2024-08-26 16:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-276 - Incorrect Default Permissions
Summary
The OpenVPN GUI installer before version 2.6.9 did not set the proper access control restrictions to the installation directory of OpenVPN binaries when using a non-standard installation path, which allows an attacker to replace binaries to run arbitrary executables.
References
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"defaultStatus": "unaffected",
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"Windows"
],
"product": "OpenVPN",
"vendor": "OpenVPN",
"versions": [
{
"lessThanOrEqual": "2.6.8",
"status": "affected",
"version": "0",
"versionType": "all releases"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The OpenVPN GUI installer before version 2.6.9 did not set the proper access control restrictions to the installation directory of OpenVPN binaries when using a non-standard installation path, which allows an attacker to replace binaries to run arbitrary executables."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-276",
"description": "CWE-276: Incorrect Default Permissions",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-02-21T10:55:15.487Z",
"orgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e",
"shortName": "OpenVPN"
},
"references": [
{
"url": "https://community.openvpn.net/openvpn/wiki/CVE-2023-7235"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e",
"assignerShortName": "OpenVPN",
"cveId": "CVE-2023-7235",
"datePublished": "2024-02-21T10:55:15.487Z",
"dateReserved": "2024-01-16T15:21:16.217Z",
"dateUpdated": "2024-08-26T16:13:36.611Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}