- Description
- 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
- Source
- security@openvpn.net
- NVD status
- Analyzed
- Products
- openvpn
CVSS 4.0
- Type
- Secondary
- Base score
- 6
- Impact score
- -
- Exploitability score
- -
- Vector string
- 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Severity
- MEDIUM
CVSS 3.1
- Type
- Primary
- Base score
- 8.1
- Impact score
- 5.2
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Severity
- HIGH
- security@openvpn.net
- CWE-416
- Hype score
- Not currently trending
v4.01 of our Windows client is at https://t.co/TMEEK4A4TM See attached for client-side fixes. Servers were updated to OpenVPN 2.7.5 on the 2nd, and v4.01 bundles 2.7.5, so we're good on CVE-2026-12996, CVE-2026-13117, CVE-2026-12932, and CVE-2026-13698. https://t.co/7VvcXvxk70
@cryptostorm_is
10 Jul 2026
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And, another CVE for @trace37_labs CVE-2026-13117 Under embargo currently.
@trace37_labs
27 Jun 2026
358 Impressions
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[
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C3EB1784-B395-4CB5-87B6-2FDEFA4F0A6B",
"versionEndExcluding": "2.6.21",
"versionStartIncluding": "2.6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*",
"matchCriteriaId": "D08AE07E-B8A3-46AE-98F3-2912848A26BB",
"versionEndExcluding": "2.7.5",
"versionStartIncluding": "2.7",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
]