CVE-2026-12996
6
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Summary
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
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| OpenVPN | OpenVPN | 2.6.0 <= 2.6.20 | affected |
| OpenVPN | OpenVPN | 2.7_alpha1 <= 2.7.4 | affected |
Weaknesses
- CWE-416: CWE-416 Use after free
- CWE-125: CWE-125 Out-of-bounds read
ADP Enrichment
CVE Program Container
Additional References
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://community.openvpn.net/Security%20Announcements/CVE-2026-12996
- https://community.openvpn.net/ReleaseHistory#openvpn-275-released-1-july-2026
- https://community.openvpn.net/ReleaseHistory#openvpn-2621-released-1-july-2026
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