CVE-2026-84471

EUVD-2026-101085
The fix for CVE-2026-12996 was incomplete. A use-after-free in OpenVPN 2.6.0 through 2.6.22 and 2.7_alpha1 through 2.7.7 allows remote authenticated peers to potentially cause a denial of service or leak memory via crafted packets during TLS session promotion or expiry.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
OpenVPNCNA
7.2 HIGH
NETWORK
LOW
LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
openvpnopenvpn
2.6.0 ≤
𝑥
≤ 2.6.22
CNA
openvpnopenvpn
𝑥
≤ 2.7.7
CNA
Debian logo
Debian Releases
Debian Product
Codename
openvpn
bookworm
vulnerable
bookworm (security)
vulnerable
forky
2.7.7-1
fixed
sid
2.7.7-1
fixed
trixie
vulnerable
trixie (security)
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
openvpn
bionic
needs-triage
focal
needs-triage
jammy
Fixed 2.5.11-0ubuntu0.22.04.5
released
noble
Fixed 2.6.19-0ubuntu0.24.04.4
released
resolute
Fixed 2.7.0-1ubuntu1.3
released
trusty
needs-triage
xenial
needs-triage
Common Weakness Enumeration
References
https://community.openvpn.net/Security%20Announcements/CVE-2026-84471