{"id":"OESA-2026-3783","summary":"openvpn security update","details":"OpenVPN is a full-featured open source SSL VPN solution that accommodates a wide range of configurations,  including remote access, site-to-site VPNs, Wi-Fi security, and enterprise-scale remote access solutions with load balancing,  failover, and fine-grained access-controls. Starting with the fundamental premise that complexity is the enemy of security,  OpenVPN offers a cost-effective, lightweight alternative to other VPN technologies that is well-adapted for the SME and enterprise markets.\r\n\r\nSecurity Fix(es):\n\nA 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(CVE-2026-12996)","modified":"2026-09-13T16:45:39.220136086Z","published":"2026-09-14T16:34:19Z","upstream":["CVE-2026-12996"],"database_specific":{"severity":"Critical"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3783"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12996"}],"affected":[{"package":{"name":"openvpn","ecosystem":"openEuler:20.03-LTS-SP4","purl":"pkg:rpm/openEuler/openvpn&distro=openEuler-20.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.8-14.oe2003sp4"}]}],"ecosystem_specific":{"noarch":["openvpn-help-2.4.8-14.oe2003sp4.noarch.rpm"],"src":["openvpn-2.4.8-14.oe2003sp4.src.rpm"],"x86_64":["openvpn-2.4.8-14.oe2003sp4.x86_64.rpm","openvpn-debuginfo-2.4.8-14.oe2003sp4.x86_64.rpm","openvpn-debugsource-2.4.8-14.oe2003sp4.x86_64.rpm","openvpn-devel-2.4.8-14.oe2003sp4.x86_64.rpm"],"aarch64":["openvpn-2.4.8-14.oe2003sp4.aarch64.rpm","openvpn-debuginfo-2.4.8-14.oe2003sp4.aarch64.rpm","openvpn-debugsource-2.4.8-14.oe2003sp4.aarch64.rpm","openvpn-devel-2.4.8-14.oe2003sp4.aarch64.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-3783.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"}]}