{"id":"DEBIAN-CVE-2026-14258","details":"A flaw was found in dhcpcd's IPv6 Neighbor Discovery Router Advertisement processing. A specially crafted IPv6 Router Advertisement containing a zero-length Neighbor Discovery option can bypass validation during packet storage and later be reparsed without adequate validation, causing the parser to enter a non-advancing loop. Successful exploitation may result in excessive CPU consumption, leading to a denial of service.","modified":"2026-09-14T17:02:29.611316030Z","published":"2026-07-01T11:16:25.980Z","upstream":["CVE-2026-14258"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-14258"}],"affected":[{"package":{"name":"dhcpcd","ecosystem":"Debian:13","purl":"pkg:deb/debian/dhcpcd?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:10.1.0-11+deb13u4"}]}],"versions":["1:10.1.0-11","1:10.1.0-11+deb13u1","1:10.1.0-11+deb13u2","1:10.1.0-11+deb13u3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14258.json"}},{"package":{"name":"dhcpcd","ecosystem":"Debian:14","purl":"pkg:deb/debian/dhcpcd?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:10.2.4-3"}]}],"versions":["1:10.1.0-11","1:10.1.0-12","1:10.2.0-1","1:10.2.2-1","1:10.2.2-2","1:10.2.2-3","1:10.2.2-4","1:10.2.2-5","1:10.2.2-6","1:10.2.3-1","1:10.2.4-1","1:10.2.4-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14258.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}