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High 7.4Published Jun 8, 2026
CVE-2026-40215A race condition in OpenVPN 2.6.0 through 2.6.19 and 2.7_alpha1 through 2.7.1 allows remote attackers to potentially cause a server crash or leak heap memory via a use-after-free triggered during TLS…
Updated under an hour ago ()
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A race condition in OpenVPN 2.6.0 through 2.6.19 and 2.7_alpha1 through 2.7.1 allows remote attackers to potentially cause a server crash or leak heap memory via a use-after-free triggered during TLS session promotion.
- CVSS
- 7.4 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
- Weakness (CWE)
- CWE-125, CWE-416
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Aug 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
openvpn openvpn openvpn:openvpn | from 2.6.0 before 2.6.20; from 2.7 before 2.7.2 | NVD |
References
- https://community.openvpn.net/ReleaseHistory#openvpn-2620-released-22-april-2026release-notes
- https://community.openvpn.net/ReleaseHistory#openvpn-272-released-22-april-2026release-notes
- https://community.openvpn.net/Security%20Announcements/CVE-2026-40215vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.