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54 vulnerabilities found for by OpenVPN
CVE-2026-115402 (GCVE-0-2026-115402)
Vulnerability from cvelistv5
Published
2026-10-28 15:00
Modified
2026-10-28 15:00
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
OpenVPN ovpn-dco-win 0.6.5 through 2.8.13 allows unprivileged local users to cause a denial of service (system crash) via a race condition in the TCP connect path.
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| OpenVPN | ovpn-dco-win |
Version: 0.6.5 ≤ 2.8.13 |
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}
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{
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}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-362",
"description": "CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)",
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"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-672",
"description": "CWE-672: Operation on a Resource after Expiration or Release",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
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"orgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e",
"shortName": "OpenVPN"
},
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CVE-2026-106017 (GCVE-0-2026-106017)
Vulnerability from cvelistv5
Published
2026-10-22 09:18
Modified
2026-10-22 13:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-295 - Improper certificate validation
Summary
Improper certificate validation in the OpenVPN 3 Core library version 3.4 through 3.11.7 allows attackers to circumvent extended key usage restrictions.
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| OpenVPN | OpenVPN 3 Core Library |
Version: 3.4 ≤ 3.11.7 |
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CVE-2026-84471 (GCVE-0-2026-84471)
Vulnerability from cvelistv5
Published
2026-10-14 14:29
Modified
2026-10-16 15:31
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use after free
Summary
The fix for CVE-2026-12996 was incomplete. A use-after-free in OpenVPN 2.6.0 through 2.6.22 and 2.7_alpha1 through 2.7.7 allows remote authenticated peers to potentially cause a denial of service or leak memory via crafted packets during TLS session promotion or expiry.
References
| URL | Tags | |
|---|---|---|
Impacted products
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},
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}
],
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CVE-2026-105390 (GCVE-0-2026-105390)
Vulnerability from cvelistv5
Published
2026-10-13 22:44
Modified
2026-10-14 18:08
Severity ?
VLAI Severity ?
EPSS score ?
Summary
Improper synchronization in the OpenVPN ovpn-dco-win for Windows versions 0.6.5 through 1.3.5 and 2.4.0 through 2.8.7 allows local attackers to trigger a deadlock via a crafted write to the ovpn-dco device, causing the host to become unresponsive.
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| OpenVPN | ovpn-dco-win |
Version: 0.6.5 ≤ 1.3.5 Version: 2.4.0 ≤ 2.8.7 |
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CVE-2026-88964 (GCVE-0-2026-88964)
Vulnerability from cvelistv5
Published
2026-10-13 22:15
Modified
2026-10-14 18:09
Severity ?
VLAI Severity ?
EPSS score ?
Summary
An integer underflow in OpenVPN version 2.7_alpha3 through 2.7.7 on Windows and Android allows remote authenticated servers to cause a denial of service or memory disclosure via crafted domain search options
References
| URL | Tags | |
|---|---|---|
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],
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"timestamp": "2026-10-14T18:09:00.654409Z",
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},
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},
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CVE-2026-84790 (GCVE-0-2026-84790)
Vulnerability from cvelistv5
Published
2026-10-13 21:39
Modified
2026-10-18 13:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
OpenVPN 2.7_alpha1 through 2.7.7 allows remote authenticated users to impersonate others via a crafted certificate subject field
References
| URL | Tags | |
|---|---|---|
{
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},
{
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},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-18T13:38:57.486997Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
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},
"title": "CISA ADP Vulnrichment"
}
],
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"product": "OpenVPN",
"vendor": "OpenVPN",
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CVE-2026-82325 (GCVE-0-2026-82325)
Vulnerability from cvelistv5
Published
2026-09-07 11:03
Modified
2026-09-08 15:08
Severity ?
VLAI Severity ?
EPSS score ?
Summary
A use-after-free vulnerability in the OpenVPN ovpn-dco-win driver version 2.5.0 through 2.8.6 allows local authenticated users to cause a system crash via crafted control messages
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| OpenVPN | ovpn-dco-win |
Version: 2.5.0 ≤ 2.8.6 |
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CVE-2026-84732 (GCVE-0-2026-84732)
Vulnerability from cvelistv5
Published
2026-09-07 08:16
Modified
2026-09-08 15:01
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-190 - Integer overflow or wraparound
Summary
Retransmissions of ACK packet ID in OpenVPN through 2.6.22 and 2.7.6 allow remote unauthenticated attackers to cause a denial of service via crafted inputs that trigger a timeout integer overflow
References
| URL | Tags | |
|---|---|---|
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CVE-2026-84256 (GCVE-0-2026-84256)
Vulnerability from cvelistv5
Published
2026-09-07 07:55
Modified
2026-10-13 22:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
An argument parsing issue in OpenVPN 2.1_rc10 through 2.6.22 and 2.7_alpha1 through 2.7.7 on Windows allows remote authenticated users to execute arbitrary commands via a crafted certificate subject
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-84226 (GCVE-0-2026-84226)
Vulnerability from cvelistv5
Published
2026-09-07 07:47
Modified
2026-09-08 14:59
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-426 - Untrusted Search Path
Summary
OpenVPN version 2.5.0 through 2.6.22 and 2.7_alpha1 through 2.7.6 on Windows allows local authenticated users to perform a binary planting attack during network configuration steps
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-82312 (GCVE-0-2026-82312)
Vulnerability from cvelistv5
Published
2026-09-07 07:40
Modified
2026-09-08 14:59
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
OpenVPN 2.0.0 through 2.6.22 and 2.7_alpha1 through 2.7.6 on Windows allows local authenticated users to cause a denial of service via a NULL DACL on named IPC objects
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-81830 (GCVE-0-2026-81830)
Vulnerability from cvelistv5
Published
2026-09-07 07:36
Modified
2026-09-08 14:56
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-73 - External control of file name or path
Summary
The Windows interactive service in OpenVPN 2.4.0 through 2.6.22 allows local authenticated users to bypass the trusted configuration directory constraint via incorrect file path validation
References
| URL | Tags | |
|---|---|---|
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CVE-2026-81738 (GCVE-0-2026-81738)
Vulnerability from cvelistv5
Published
2026-09-07 07:32
Modified
2026-09-08 14:55
Severity ?
VLAI Severity ?
EPSS score ?
Summary
OpenVPN 2.5.0 through 2.7.6 on Windows using the tap-windows6 driver allows attackers to trigger an out-of-bounds write via crafted DOMAIN-SEARCH entries
References
| URL | Tags | |
|---|---|---|
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CVE-2026-78221 (GCVE-0-2026-78221)
Vulnerability from cvelistv5
Published
2026-09-07 07:28
Modified
2026-09-08 14:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-131 - Incorrect calculation of buffer size
Summary
An incorrect buffer size calculation in the Windows Interactive Service in OpenVPN 2.7_alpha1 through 2.7.6 allows local authenticated users to cause memory corruption or disclose sensitive information via crafted NRPT inputs.
References
| URL | Tags | |
|---|---|---|
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CVE-2026-78043 (GCVE-0-2026-78043)
Vulnerability from cvelistv5
Published
2026-09-07 07:21
Modified
2026-09-08 14:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Summary
The Windows Interactive Service in OpenVPN 2.7_alpha1 through 2.7.6 allows local authenticated users to bypass the trusted configuration directory constraint and load arbitrary configuration files via specially crafted paths
References
| URL | Tags | |
|---|---|---|
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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
2026-09-17 18:35
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
2026-09-17 18:36
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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