CVE-2026-12932

HIGH

OpenVPN - Missing Release of Memory after Effective Lifetime

Title source: rule
STIX 2.1

Description

A memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service (memory exhaustion) via a flood of crafted packets

References (3)

Core 3

Scores

CVSS v4 7.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-401
Status published
Products (2)
OpenVPN/OpenVPN 2.5.0 - 2.6.20
OpenVPN/OpenVPN 2.7_alpha1 - 2.7.4
Published Jul 30, 2026
Tracked Since Jul 30, 2026