{"id":"CVE-2025-12106","title":"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","summary":"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","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","cwe":["CWE-126"],"vendor":"openvpn","product":"openvpn","affected":["openvpn = 2.6.13","openvpn = 2.7"],"published":"2025-12-01","updated":"2026-09-26","sourceUpdated":"2026-09-26T00:10:00.127","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-12106","references":[{"url":"https://community.openvpn.net/Security%20Announcements/CVE-2025-12106","label":"security@openvpn.net"},{"url":"https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00152.html","label":"security@openvpn.net"}],"tags":["nvd"],"epss":0.00556,"epssPercentile":0.4399,"ingestedAt":"2026-09-26T00:22:39.981Z","slug":"CVE-2025-12106","body":"## Overview\n\nInsufficient 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\n\n## Affected\n\n- `openvpn = 2.6.13`\n- `openvpn = 2.7`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}