{"id":"DEBIAN-CVE-2026-84732","details":"Retransmissions of ACK packet ID in OpenVPN through 2.6.22 and 2.7.6 allow remote unauthenticated attackers to cause a denial of service via crafted inputs that trigger a timeout integer overflow","modified":"2026-09-09T09:00:25.965784659Z","published":"2026-09-07T09:17:16.840Z","upstream":["CVE-2026-84732"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-84732"}],"affected":[{"package":{"name":"openvpn","ecosystem":"Debian:12","purl":"pkg:deb/debian/openvpn?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.6.11-1","2.6.12-1","2.6.13-1","2.6.14-0+deb12u1","2.6.14-0+deb12u2","2.6.14-1","2.6.14-2","2.6.15-1","2.6.3-1","2.6.3-1+deb12u1","2.6.3-1+deb12u1~bpo11+1","2.6.3-1+deb12u2","2.6.3-1+deb12u2~bpo11+1","2.6.3-1+deb12u3","2.6.3-1+deb12u4","2.6.3-2","2.6.3-2.1","2.6.7-1","2.6.9-1","2.7.0-1","2.7.0-1~bpo13+1","2.7.0~alpha1-1","2.7.0~alpha2-1","2.7.0~alpha3-1","2.7.0~beta1-1","2.7.0~beta2-1","2.7.0~beta3-1","2.7.0~rc1-1","2.7.0~rc2-1","2.7.0~rc2-2","2.7.0~rc3-1","2.7.0~rc4-1","2.7.0~rc5-1","2.7.0~rc6-1","2.7.1-1","2.7.1-1~bpo13+1","2.7.2-1","2.7.2-1~bpo13+1","2.7.3-1","2.7.5-1","2.7.5-1~bpo13+1","2.7.7-1","2.7.7-1~bpo13+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84732.json"}},{"package":{"name":"openvpn","ecosystem":"Debian:13","purl":"pkg:deb/debian/openvpn?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.6.14-1","2.6.14-1+deb13u1","2.6.14-1+deb13u2","2.6.14-1+deb13u3","2.6.14-2","2.6.15-1","2.7.0-1","2.7.0-1~bpo13+1","2.7.0~alpha1-1","2.7.0~alpha2-1","2.7.0~alpha3-1","2.7.0~beta1-1","2.7.0~beta2-1","2.7.0~beta3-1","2.7.0~rc1-1","2.7.0~rc2-1","2.7.0~rc2-2","2.7.0~rc3-1","2.7.0~rc4-1","2.7.0~rc5-1","2.7.0~rc6-1","2.7.1-1","2.7.1-1~bpo13+1","2.7.2-1","2.7.2-1~bpo13+1","2.7.3-1","2.7.5-1","2.7.5-1~bpo13+1","2.7.7-1","2.7.7-1~bpo13+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84732.json"}},{"package":{"name":"openvpn","ecosystem":"Debian:14","purl":"pkg:deb/debian/openvpn?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.7-1"}]}],"versions":["2.6.14-1","2.6.14-2","2.6.15-1","2.7.0-1","2.7.0-1~bpo13+1","2.7.0~alpha1-1","2.7.0~alpha2-1","2.7.0~alpha3-1","2.7.0~beta1-1","2.7.0~beta2-1","2.7.0~beta3-1","2.7.0~rc1-1","2.7.0~rc2-1","2.7.0~rc2-2","2.7.0~rc3-1","2.7.0~rc4-1","2.7.0~rc5-1","2.7.0~rc6-1","2.7.1-1","2.7.1-1~bpo13+1","2.7.2-1","2.7.2-1~bpo13+1","2.7.3-1","2.7.5-1","2.7.5-1~bpo13+1","2.7.7-1~bpo13+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84732.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/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"}]}