Description
Insufficient argument validation in OpenVPN 2.7_alpha1 through 2.7_rc1 allows an attacker to trigger a heap buffer over-read when parsing IP addresses
Scores
CVSS v3
9.1
EPSS
0.0007
EPSS Percentile
21.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-126
Status
published
Products (2)
openvpn/openvpn
2.6.13
openvpn/openvpn
2.7 alpha1 (7 CPE variants)
Published
Dec 01, 2025
Tracked Since
Feb 18, 2026