CVE-2021-3547

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Source
https://cve.org/CVERecord?id=CVE-2021-3547
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3547.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-3547
Published
2021-07-12T11:15:08.233Z
Modified
2026-07-08T05:57:48.190913381Z
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.

Database specific 
{
    "unresolved_ranges": [
        {
            "vendor_product": "openvpn:openvpn",
            "source": "CPE_STRING",
            "extracted_events": [
                {
                    "introduced": "3.6"
                },
                {
                    "last_affected": "3.6"
                }
            ],
            "cpes": [
                "cpe:2.3:a:openvpn:openvpn:3.6:*:*:*:*:*:*:*"
            ]
        }
    ]
}
References

Affected packages

Git / github.com/openvpn/openvpn3

Affected ranges

Type
GIT
Repo
https://github.com/openvpn/openvpn3
Events
Introduced
1e6208e102ea6781710401d71fffe017658dcedf
Last affected
861fe85afb66bc593ec4ae138fd42b1553b892ad
Database specific 
{
    "source": "CPE_STRING",
    "cpe": [
        "cpe:2.3:a:openvpn:openvpn:3.6:*:*:*:*:*:*:*",
        "cpe:2.3:a:openvpn:openvpn:3.6.1:*:*:*:*:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "3.6"
        },
        {
            "last_affected": "3.6"
        },
        {
            "introduced": "3.6.1"
        },
        {
            "last_affected": "3.6.1"
        }
    ]
}

Affected versions

3.*
3.6
3.6.1
release/3.*
release/3.6
release/3.6.1

Database specific

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