CVE-2021-3547

Source
https://cve.org/CVERecord?id=CVE-2021-3547
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-3547.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-3547
Published
2021-07-12T11:15:08.233Z
Modified
2025-11-14T12:03:08.025666Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

OpenVPN 3 Core Library version 3.6 and 3.6.1 allows a man-in-the-middle attacker to bypass the certificate authentication by issuing an unrelated server certificate using the same hostname found in the verify-x509-name option in a client configuration.

References

Affected packages

Git / github.com/openvpn/openvpn3

Affected ranges

Type
GIT
Repo
https://github.com/openvpn/openvpn3
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Last affected

Affected versions

connect_2.*
connect_2.7.1.103
release/3.*
release/3.3
release/3.3.1
release/3.3.2
release/3.3.3
release/3.3.4
release/3.4
release/3.4.1
release/3.4.2
release/3.4.3
release/3.5
release/3.5.1
release/3.5.2
release/3.5.3
release/3.5.4
release/3.5.5
release/3.5.6
release/3.6

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-3547.json"