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CVE-2026-84471

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.

Severity
High 7.2
Published
14 Oct 2026
Last changed
16 Oct 2026
Added to UpHeron
3 Nov 2026
Sources
CVE Program

Affected software

SoftwareAffected versions
OpenVPNServers and applications · cna:openvpn|openvpn
  • From 2.6.0 up to 2.6.22
  • From 2.7_alpha1 up to 2.7.7

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-84471