Vulnerability-Lookup

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CVE-2026-82325 (GCVE-0-2026-82325)

Vulnerability from nvd – Published: 2026-09-07 11:03 – Updated: 2026-09-08 15:08

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

Severity

6.8 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 15:08 UTC

CWE

CWE-416 - Use after free
CWE-415 - Double free

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	ovpn-dco-win	Affected: 2.5.0 , ≤ 2.8.6 (semver)

Show details on NVD website

JSON

To clipboard

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        "metrics": [
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                "id": "CVE-2026-82325",
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          "shortName": "CISA-ADP"
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}

CVE-2026-84732 (GCVE-0-2026-84732)

Vulnerability from nvd – Published: 2026-09-07 08:16 – Updated: 2026-09-08 15:01

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

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 15:01 UTC

CWE

CWE-190 - Integer overflow or wraparound

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 0 , ≤ 2.6.22 (semver) Affected: 0 , ≤ 2.7.6 (semver)

Show details on NVD website

JSON

To clipboard

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                "timestamp": "2026-09-08T15:01:38.566516Z",
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}

CVE-2026-84256 (GCVE-0-2026-84256)

Vulnerability from nvd – Published: 2026-09-07 07:55 – Updated: 2026-09-08 15:00

Summary

An argument parsing issue in OpenVPN 2.1_rc10 through 2.6.22 and 2.7_alpha1 through 2.7.6 on Windows allows remote authenticated users to execute arbitrary commands via a crafted certificate subject

Severity

7.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 15:00 UTC

CWE

CWE-78 - Improper neutralization of special elements used in an OS command ('OS command injection')
CWE-88 - Improper neutralization of argument delimiters in a command ('argument injection')

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.1_rc10 , ≤ 2.6.22 (semver) Affected: 2.7_alpha1 , ≤ 2.7.6 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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                "id": "CVE-2026-84256",
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CVE-2026-84226 (GCVE-0-2026-84226)

Vulnerability from nvd – Published: 2026-09-07 07:47 – Updated: 2026-09-08 14:59

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

Severity

8.5 (High)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 14:59 UTC

CWE

CWE-426 - Untrusted Search Path

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.5.0 , ≤ 2.6.22 (semver) Affected: 2.7_alpha1 , ≤ 2.7.6 (semver)

Show details on NVD website

JSON

To clipboard

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}

CVE-2026-82312 (GCVE-0-2026-82312)

Vulnerability from nvd – Published: 2026-09-07 07:40 – Updated: 2026-09-08 14:59

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

Severity

1.8 (Low)


                        
                          CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 14:57 UTC

CWE

CWE-732 - Incorrect Permission Assignment for Critical Resource
CWE-412 - Unrestricted externally accessible lock

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.0.0 , ≤ 2.6.22 (semver) Affected: 2.7_alpha1 , ≤ 2.7.6 (semver)

Show details on NVD website

JSON

To clipboard

{
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CVE-2026-81830 (GCVE-0-2026-81830)

Vulnerability from nvd – Published: 2026-09-07 07:36 – Updated: 2026-09-08 14:56

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

Severity

5.6 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 14:55 UTC

CWE

CWE-73 - External control of file name or path

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.4.0 , ≤ 2.6.22 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-81738 (GCVE-0-2026-81738)

Vulnerability from nvd – Published: 2026-09-07 07:32 – Updated: 2026-09-08 14:55

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

Severity

2.3 (Low)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 14:54 UTC

CWE

CWE-121 - Stack-based buffer overflow
CWE-193 - Off-by-one error
CWE-787 - Out-of-bounds write

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.5.0 , ≤ 2.7.6 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-78221 (GCVE-0-2026-78221)

Vulnerability from nvd – Published: 2026-09-07 07:28 – Updated: 2026-09-08 14:54

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.

Severity

5.9 (Medium)


                        
                          CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:N/VA:H/SC:H/SI:N/SA:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 14:54 UTC

CWE

CWE-131 - Incorrect calculation of buffer size

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.7_alpha1 , ≤ 2.7.6 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-78043 (GCVE-0-2026-78043)

Vulnerability from nvd – Published: 2026-09-07 07:21 – Updated: 2026-09-08 14:54

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

Severity

5.6 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 14:54 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.7_alpha1 , ≤ 2.7.6 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-63650 (GCVE-0-2026-63650)

Vulnerability from nvd – Published: 2026-08-14 22:13 – Updated: 2026-08-17 15:38

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

Severity

2 (Low)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-17 15:22 UTC

CWE

CWE-295 - Improper Certificate Validation
CWE-115 - Misinterpretation of Input

Assigner

OpenVPN mitre root

References

2 references

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory
https://community.openvpn.net/ReleaseHistory#open…	release-notes

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.7_alpha1 , < 2.7.6 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-63649 (GCVE-0-2026-63649)

Vulnerability from nvd – Published: 2026-08-14 22:13 – Updated: 2026-08-17 15:38

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

Severity

4.1 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-17 15:22 UTC

CWE

CWE-183 - Permissive list of allowed inputs

Assigner

OpenVPN mitre root

References

3 references

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory
https://community.openvpn.net/ReleaseHistory#open…	release-notes
https://community.openvpn.net/ReleaseHistory#open…	release-notes

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.4.0 , < 2.6.22 (semver) Affected: 2.7_alpha1 , < 2.7.6 (semver)

Date Public

2026-07-29 16:00

Show details on NVD website

JSON

To clipboard

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CVE-2026-13379 (GCVE-0-2026-13379)

Vulnerability from nvd – Published: 2026-07-30 16:28 – Updated: 2026-07-30 18:09

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

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:N/VA:L/SC:H/SI:N/SA:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-30 18:09 UTC

CWE

CWE-142 - Improper neutralization of value delimiters
CWE-125 - Out-of-bounds read

Assigner

OpenVPN mitre root

References

2 references

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory
https://community.openvpn.net/ReleaseHistory#open…	release-notes

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.7_alpha1 , ≤ 2.7.4 (semver)

Show details on NVD website

JSON

To clipboard

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        "metrics": [
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CVE-2026-13117 (GCVE-0-2026-13117)

Vulnerability from nvd – Published: 2026-07-30 16:32 – Updated: 2026-07-30 18:08

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

Severity

6 (Medium)


                        
                          CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-30 18:08 UTC

CWE

CWE-416 - Use after free

Assigner

OpenVPN mitre root

References

3 references

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory
https://community.openvpn.net/ReleaseHistory#open…	release-notes
https://community.openvpn.net/ReleaseHistory#open…	release-notes

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.6.0 , ≤ 2.6.20 (semver) Affected: 2.7_alpha1 , ≤ 2.7.4 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-12996 (GCVE-0-2026-12996)

Vulnerability from nvd – Published: 2026-07-30 16:38 – Updated: 2026-07-30 18:07

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

Severity

6 (Medium)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-30 18:06 UTC

CWE

CWE-416 - Use after free
CWE-125 - Out-of-bounds read

Assigner

OpenVPN mitre root

References

4 references

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory
https://community.openvpn.net/ReleaseHistory#open…	release-notes
https://community.openvpn.net/ReleaseHistory#open…	release-notes
https://lists.debian.org/debian-lts-announce/2026…

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.6.0 , ≤ 2.6.20 (semver) Affected: 2.7_alpha1 , ≤ 2.7.4 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-12932 (GCVE-0-2026-12932)

Vulnerability from nvd – Published: 2026-07-30 16:42 – Updated: 2026-07-30 18:05

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

Severity

7.1 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-30 18:05 UTC

CWE

CWE-401 - Missing release of memory after effective lifetime

Assigner

OpenVPN mitre root

References

3 references

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory
https://community.openvpn.net/ReleaseHistory#open…	release-notes
https://community.openvpn.net/ReleaseHistory#open…	release-notes

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.5.0 , ≤ 2.6.20 (semver) Affected: 2.7_alpha1 , ≤ 2.7.4 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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CVE-2026-11771 (GCVE-0-2026-11771)

Vulnerability from nvd – Published: 2026-07-30 16:36 – Updated: 2026-07-30 18:04

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

Severity

7 (High)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-30 18:04 UTC

CWE

CWE-193 - Off-by-one error
CWE-121 - Stack-based buffer overflow
CWE-787 - Out-of-bounds write

Assigner

OpenVPN mitre root

References

3 references

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory
https://community.openvpn.net/ReleaseHistory#open…	release-notes
https://community.openvpn.net/ReleaseHistory#open…	release-notes

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.1.0 , ≤ 2.6.20 (semver) Affected: 2.7_alpha1 , ≤ 2.7.4 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-82325 (GCVE-0-2026-82325)

Vulnerability from cvelistv5 – Published: 2026-09-07 11:03 – Updated: 2026-09-08 15:08

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

Severity

6.8 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 15:08 UTC

CWE

CWE-416 - Use after free
CWE-415 - Double free

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	ovpn-dco-win	Affected: 2.5.0 , ≤ 2.8.6 (semver)

Show details on NVD website

JSON

To clipboard

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        "metrics": [
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                "id": "CVE-2026-82325",
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CVE-2026-84732 (GCVE-0-2026-84732)

Vulnerability from cvelistv5 – Published: 2026-09-07 08:16 – Updated: 2026-09-08 15:01

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

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 15:01 UTC

CWE

CWE-190 - Integer overflow or wraparound

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 0 , ≤ 2.6.22 (semver) Affected: 0 , ≤ 2.7.6 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-84256 (GCVE-0-2026-84256)

Vulnerability from cvelistv5 – Published: 2026-09-07 07:55 – Updated: 2026-09-08 15:00

Summary

An argument parsing issue in OpenVPN 2.1_rc10 through 2.6.22 and 2.7_alpha1 through 2.7.6 on Windows allows remote authenticated users to execute arbitrary commands via a crafted certificate subject

Severity

7.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 15:00 UTC

CWE

CWE-78 - Improper neutralization of special elements used in an OS command ('OS command injection')
CWE-88 - Improper neutralization of argument delimiters in a command ('argument injection')

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.1_rc10 , ≤ 2.6.22 (semver) Affected: 2.7_alpha1 , ≤ 2.7.6 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-84226 (GCVE-0-2026-84226)

Vulnerability from cvelistv5 – Published: 2026-09-07 07:47 – Updated: 2026-09-08 14:59

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

Severity

8.5 (High)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 14:59 UTC

CWE

CWE-426 - Untrusted Search Path

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.5.0 , ≤ 2.6.22 (semver) Affected: 2.7_alpha1 , ≤ 2.7.6 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-82312 (GCVE-0-2026-82312)

Vulnerability from cvelistv5 – Published: 2026-09-07 07:40 – Updated: 2026-09-08 14:59

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

Severity

1.8 (Low)


                        
                          CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 14:57 UTC

CWE

CWE-732 - Incorrect Permission Assignment for Critical Resource
CWE-412 - Unrestricted externally accessible lock

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.0.0 , ≤ 2.6.22 (semver) Affected: 2.7_alpha1 , ≤ 2.7.6 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-81830 (GCVE-0-2026-81830)

Vulnerability from cvelistv5 – Published: 2026-09-07 07:36 – Updated: 2026-09-08 14:56

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

Severity

5.6 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 14:55 UTC

CWE

CWE-73 - External control of file name or path

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.4.0 , ≤ 2.6.22 (semver)

Show details on NVD website

JSON

To clipboard

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  "containers": {
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CVE-2026-81738 (GCVE-0-2026-81738)

Vulnerability from cvelistv5 – Published: 2026-09-07 07:32 – Updated: 2026-09-08 14:55

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

Severity

2.3 (Low)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 14:54 UTC

CWE

CWE-121 - Stack-based buffer overflow
CWE-193 - Off-by-one error
CWE-787 - Out-of-bounds write

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.5.0 , ≤ 2.7.6 (semver)

Show details on NVD website

JSON

To clipboard

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  "containers": {
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        "metrics": [
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CVE-2026-78221 (GCVE-0-2026-78221)

Vulnerability from cvelistv5 – Published: 2026-09-07 07:28 – Updated: 2026-09-08 14:54

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.

Severity

5.9 (Medium)


                        
                          CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:N/VA:H/SC:H/SI:N/SA:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 14:54 UTC

CWE

CWE-131 - Incorrect calculation of buffer size

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.7_alpha1 , ≤ 2.7.6 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-78043 (GCVE-0-2026-78043)

Vulnerability from cvelistv5 – Published: 2026-09-07 07:21 – Updated: 2026-09-08 14:54

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

Severity

5.6 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 14:54 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

OpenVPN mitre root

References

1 reference

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.7_alpha1 , ≤ 2.7.6 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-63650 (GCVE-0-2026-63650)

Vulnerability from cvelistv5 – Published: 2026-08-14 22:13 – Updated: 2026-08-17 15:38

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

Severity

2 (Low)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-17 15:22 UTC

CWE

CWE-295 - Improper Certificate Validation
CWE-115 - Misinterpretation of Input

Assigner

OpenVPN mitre root

References

2 references

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory
https://community.openvpn.net/ReleaseHistory#open…	release-notes

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.7_alpha1 , < 2.7.6 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-63649 (GCVE-0-2026-63649)

Vulnerability from cvelistv5 – Published: 2026-08-14 22:13 – Updated: 2026-08-17 15:38

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

Severity

4.1 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-17 15:22 UTC

CWE

CWE-183 - Permissive list of allowed inputs

Assigner

OpenVPN mitre root

References

3 references

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory
https://community.openvpn.net/ReleaseHistory#open…	release-notes
https://community.openvpn.net/ReleaseHistory#open…	release-notes

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.4.0 , < 2.6.22 (semver) Affected: 2.7_alpha1 , < 2.7.6 (semver)

Date Public

2026-07-29 16:00

Show details on NVD website

JSON

To clipboard

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CVE-2026-12932 (GCVE-0-2026-12932)

Vulnerability from cvelistv5 – Published: 2026-07-30 16:42 – Updated: 2026-07-30 18:05

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

Severity

7.1 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-30 18:05 UTC

CWE

CWE-401 - Missing release of memory after effective lifetime

Assigner

OpenVPN mitre root

References

3 references

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory
https://community.openvpn.net/ReleaseHistory#open…	release-notes
https://community.openvpn.net/ReleaseHistory#open…	release-notes

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.5.0 , ≤ 2.6.20 (semver) Affected: 2.7_alpha1 , ≤ 2.7.4 (semver)

Show details on NVD website

JSON

To clipboard

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  "containers": {
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      {
        "metrics": [
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CVE-2026-12996 (GCVE-0-2026-12996)

Vulnerability from cvelistv5 – Published: 2026-07-30 16:38 – Updated: 2026-07-30 18:07

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

Severity

6 (Medium)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-30 18:06 UTC

CWE

CWE-416 - Use after free
CWE-125 - Out-of-bounds read

Assigner

OpenVPN mitre root

References

4 references

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory
https://community.openvpn.net/ReleaseHistory#open…	release-notes
https://community.openvpn.net/ReleaseHistory#open…	release-notes
https://lists.debian.org/debian-lts-announce/2026…

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.6.0 , ≤ 2.6.20 (semver) Affected: 2.7_alpha1 , ≤ 2.7.4 (semver)

Show details on NVD website

JSON

To clipboard

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    "assignerOrgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e",
    "assignerShortName": "OpenVPN",
    "cveId": "CVE-2026-12996",
    "datePublished": "2026-07-30T16:38:58.925Z",
    "dateReserved": "2026-06-23T13:16:10.234Z",
    "dateUpdated": "2026-07-30T18:07:17.597Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-11771 (GCVE-0-2026-11771)

Vulnerability from cvelistv5 – Published: 2026-07-30 16:36 – Updated: 2026-07-30 18:04

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

Severity

7 (High)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-30 18:04 UTC

CWE

CWE-193 - Off-by-one error
CWE-121 - Stack-based buffer overflow
CWE-787 - Out-of-bounds write

Assigner

OpenVPN mitre root

References

3 references

URL	Tags
https://community.openvpn.net/Security%20Announce…	vendor-advisory
https://community.openvpn.net/ReleaseHistory#open…	release-notes
https://community.openvpn.net/ReleaseHistory#open…	release-notes

Impacted products

1 product

Vendor	Product	Version
OpenVPN	OpenVPN	Affected: 2.1.0 , ≤ 2.6.20 (semver) Affected: 2.7_alpha1 , ≤ 2.7.4 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-11771",
                "options": [
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                  },
                  {
                    "Technical Impact": "partial"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-30T18:04:28.530958Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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              "lessThanOrEqual": "2.7.4",
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      ],
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          "lang": "en",
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        }
      ],
      "metrics": [
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          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-193",
              "description": "CWE-193 Off-by-one error",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-121",
              "description": "CWE-121 Stack-based buffer overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "CWE-787 Out-of-bounds write",
              "lang": "en",
              "type": "CWE"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-30T16:36:41.087Z",
        "orgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e",
        "shortName": "OpenVPN"
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      "references": [
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          "url": "https://community.openvpn.net/Security%20Announcements/CVE-2026-11771"
        },
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        },
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          "url": "https://community.openvpn.net/ReleaseHistory#openvpn-2621-released-1-july-2026"
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    "datePublished": "2026-07-30T16:36:41.087Z",
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    "state": "PUBLISHED"
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}

Find a vulnerability

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243 vulnerabilities by openvpn

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CVE-2026-13379 (GCVE-0-2026-13379)

CVE-2026-13117 (GCVE-0-2026-13117)

CVE-2026-12996 (GCVE-0-2026-12996)

CVE-2026-12932 (GCVE-0-2026-12932)

CVE-2026-11771 (GCVE-0-2026-11771)

CVE-2026-82325 (GCVE-0-2026-82325)

CVE-2026-84732 (GCVE-0-2026-84732)

CVE-2026-84256 (GCVE-0-2026-84256)

CVE-2026-84226 (GCVE-0-2026-84226)

CVE-2026-82312 (GCVE-0-2026-82312)

CVE-2026-81830 (GCVE-0-2026-81830)

CVE-2026-81738 (GCVE-0-2026-81738)

CVE-2026-78221 (GCVE-0-2026-78221)

CVE-2026-78043 (GCVE-0-2026-78043)

CVE-2026-63650 (GCVE-0-2026-63650)

CVE-2026-63649 (GCVE-0-2026-63649)

CVE-2026-12932 (GCVE-0-2026-12932)

CVE-2026-12996 (GCVE-0-2026-12996)

CVE-2026-11771 (GCVE-0-2026-11771)

Find a vulnerability

Search criteria ⓘ Use this form to refine search results. Full-text search supports keyword queries with ranking and filtering. You can combine vendor, product, and sources to narrow results. Enable “Apply ordering” to sort by date instead of relevance.

243 vulnerabilities by openvpn

CVE-2026-82325 (GCVE-0-2026-82325)

CVE-2026-84732 (GCVE-0-2026-84732)

CVE-2026-84256 (GCVE-0-2026-84256)

CVE-2026-84226 (GCVE-0-2026-84226)

CVE-2026-82312 (GCVE-0-2026-82312)

CVE-2026-81830 (GCVE-0-2026-81830)

CVE-2026-81738 (GCVE-0-2026-81738)

CVE-2026-78221 (GCVE-0-2026-78221)

CVE-2026-78043 (GCVE-0-2026-78043)

CVE-2026-63650 (GCVE-0-2026-63650)

CVE-2026-63649 (GCVE-0-2026-63649)

CVE-2026-13379 (GCVE-0-2026-13379)

CVE-2026-13117 (GCVE-0-2026-13117)

CVE-2026-12996 (GCVE-0-2026-12996)

CVE-2026-12932 (GCVE-0-2026-12932)

CVE-2026-11771 (GCVE-0-2026-11771)

CVE-2026-82325 (GCVE-0-2026-82325)

CVE-2026-84732 (GCVE-0-2026-84732)

CVE-2026-84256 (GCVE-0-2026-84256)

CVE-2026-84226 (GCVE-0-2026-84226)

CVE-2026-82312 (GCVE-0-2026-82312)

CVE-2026-81830 (GCVE-0-2026-81830)

CVE-2026-81738 (GCVE-0-2026-81738)

CVE-2026-78221 (GCVE-0-2026-78221)

CVE-2026-78043 (GCVE-0-2026-78043)

CVE-2026-63650 (GCVE-0-2026-63650)

CVE-2026-63649 (GCVE-0-2026-63649)

CVE-2026-12932 (GCVE-0-2026-12932)

CVE-2026-12996 (GCVE-0-2026-12996)

CVE-2026-11771 (GCVE-0-2026-11771)

Search criteria ⓘ Use this form to refine search results.
Full-text search supports keyword queries with ranking and filtering.
You can combine vendor, product, and sources to narrow results.
Enable “Apply ordering” to sort by date instead of relevance.