OpenVPN 2.7_alpha1 through 2.7.7 allows remote authenticated users to impersonate others via a crafted certificate subject field
PUBLISHED5.2CWE-290CWE-158
Problem type
- CWE-290 Authentication bypass by spoofing
- CWE-158 Improper neutralization of null byte or NUL character
Affected products
OpenVPN
OpenVPN
<= 2.7.7 - AFFECTED
References
JSON source
https://cveawg.mitre.org/api/cve/CVE-2026-84790Click to expand
{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-84790",
"assignerOrgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e",
"assignerShortName": "OpenVPN",
"dateUpdated": "2026-10-13T21:45:48.244Z",
"dateReserved": "2026-09-02T10:17:52.615Z",
"datePublished": "2026-10-13T21:39:05.221Z",
"state": "PUBLISHED"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e",
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"dateUpdated": "2026-10-13T21:45:48.244Z"
},
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"value": "OpenVPN 2.7_alpha1 through 2.7.7 allows remote authenticated users to impersonate others via a crafted certificate subject field"
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"affected": [
{
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"product": "OpenVPN",
"defaultStatus": "unaffected",
"versions": [
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"status": "affected",
"versionType": "semver",
"lessThanOrEqual": "2.7.7"
}
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}
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"problemTypes": [
{
"descriptions": [
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"type": "CWE"
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]
},
{
"descriptions": [
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]
}
],
"references": [
{
"url": "https://community.openvpn.net/Security%20Announcements/CVE-2026-84790",
"tags": [
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}
],
"metrics": [
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"format": "CVSS",
"scenarios": [
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}