8.1

CVE-2026-12996

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
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
OpenvpnOpenvpn Version >= 2.6.0 < 2.6.21
OpenvpnOpenvpn Version >= 2.7 < 2.7.5
DebianDebian Linux Version11.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.46% 0.377
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 8.1 2.8 5.2
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
security@openvpn.net 6 0 0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://community.openvpn.net/ReleaseHistory#openvpn-275-released-1-july-2026
Release Notes
https://community.openvpn.net/ReleaseHistory#openvpn-2621-released-1-july-2026
Release Notes
https://community.openvpn.net/Security%20Announcements/CVE-2026-12996
Vendor Advisory
https://lists.debian.org/debian-lts-announce/2026/07/msg00013.html
Third Party Advisory
Mailing List