A use-after-free in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote authenticated peers to potentially cause a denial of service or leak memory via crafted packets during TLS session promotion or expiry
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4666-1 | openvpn security update |
Debian DLA |
DLA-4653-2 | openvpn regression update |
Debian DSA |
DSA-6376-1 | openvpn security update |
Ubuntu USN |
USN-8540-1 | OpenVPN vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 30 Jul 2026 18:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Openvpn
Openvpn openvpn |
|
| Vendors & Products |
Openvpn
Openvpn openvpn |
Thu, 30 Jul 2026 17:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A use-after-free in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote authenticated peers to potentially cause a denial of service or leak memory via crafted packets during TLS session promotion or expiry | |
| Weaknesses | CWE-125 CWE-416 |
|
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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Status: PUBLISHED
Assigner: OpenVPN
Published:
Updated: 2026-07-30T18:07:17.597Z
Reserved: 2026-06-23T13:16:10.234Z
Link: CVE-2026-12996
No data.
No data.
No data.
OpenCVE Enrichment
Updated: 2026-07-30T18:30:04Z
Debian DLA
Debian DSA
Ubuntu USN