{"id":"CVE-2026-102483","aliases":["DEBIAN-CVE-2026-102483","EUVD-2026-107309","GHSA-6xg3-q93h-wcgv","UBUNTU-CVE-2026-102483","openSUSE-SU-2026:12229-1"],"status":"published","title":"Reachable Assertion in ntpsec","description":"Reachable exit in NTPsec ntpd 1.1.4 through 1.2.5 allows a remote attacker to terminate the daemon via an NTS request with excess NTS Cookie Placeholder extension fields.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00428,"percentile":0.37331,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-617"],"published":"2026-10-21T15:03:41Z","modified":"2026-10-31T02:30:53Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"ntpsec","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.2+dfsg1-1","1.2.2+dfsg1-1+deb12u1","1.2.2+dfsg1-2","1.2.2+dfsg1-3","1.2.2+dfsg1-4","1.2.3+dfsg1-1","1.2.3+dfsg1-2","1.2.3+dfsg1-3","1.2.3+dfsg1-4","1.2.3+dfsg1-5","1.2.3+dfsg1-6","1.2.3+dfsg1-7","1.2.3+dfsg1-8","1.2.4+dfsg-1","1.2.5+dfsg-1"]},{"source":"osv","ecosystem":"Debian:13","package":"ntpsec","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.3+dfsg1-8","1.2.4+dfsg-1","1.2.5+dfsg-1"]},{"source":"osv","ecosystem":"Debian:14","package":"ntpsec","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.3+dfsg1-8","1.2.4+dfsg-1","1.2.5+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"ntpsec","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.0+dfsg1-1","1.0.0+dfsg1-3","1.1.0+dfsg1-1","1.1.0+dfsg1-1ubuntu0.1","1.1.0+dfsg1-1ubuntu0.2"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"ntpsec","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.3+dfsg1-2","1.1.7+dfsg1-1","1.1.7+dfsg1-2","1.1.8+dfsg1-1","1.1.8+dfsg1-3","1.1.8+dfsg1-4","1.1.8+dfsg1-4build1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"ntpsec","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.0+dfsg1-4","1.2.1+dfsg1-2","1.2.1+dfsg1-3","1.2.1+dfsg1-3ubuntu1","1.2.1+dfsg1-4"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"ntpsec","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.2+dfsg1-2","1.2.2+dfsg1-3","1.2.2+dfsg1-4","1.2.2+dfsg1-4build1","1.2.2+dfsg1-4build2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"ntpsec","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.3+dfsg1-8ubuntu2","1.2.3+dfsg1-8ubuntu3"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"ntpsec","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.3+dfsg1-8ubuntu1","1.2.3+dfsg1-8ubuntu2"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"ntpsec","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-1.1"}]}],"bundled":4}],"products":[{"vendor":"ntpsec","product":"ntpsec"}],"references":[{"url":"https://gitlab.com/NTPsec/ntpsec/-/work_items/899","tags":["web"]},{"url":"https://gitlab.com/NTPsec/ntpsec/-/commit/df83f3c4f","tags":["fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102483","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-6xg3-q93h-wcgv"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102483.json","tags":["advisory"]},{"url":"https://gitlab.com/NTPsec/ntpsec","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-102483","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-102483","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-102483","tags":["report"]},{"url":"https://blog.ntpsec.org/2026/10/20/version-1.2.6.html","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-102483","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-102484","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-102485","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-102486","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-102483","title":"Reachable Assertion in ntpsec","description":"Reachable exit in NTPsec ntpd 1.1.4 through 1.2.5 allows a remote attacker to terminate the daemon via an NTS request with excess NTS Cookie Placeholder extension fields.","status":"published","published":"2026-10-21T15:03:41.276Z","modified":"2026-10-29T20:57:11.825Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T13:38:54.394896Z"}],"euvd":[{"id":"EUVD-2026-107309","description":"Reachable exit in NTPsec ntpd 1.1.4 through 1.2.5 allows a remote attacker to terminate the daemon via an NTS request with excess NTS Cookie Placeholder extension fields.","status":"published","published":"2026-10-21T15:03:41Z","modified":"2026-10-29T20:57:11Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:59:14.591479Z"}],"ghsa":[{"id":"GHSA-6xg3-q93h-wcgv","title":"Reachable exit in NTPsec ntpd 1.1.4 through 1.2.5 allows a remote attacker to terminate the...","description":"Reachable exit in NTPsec ntpd 1.1.4 through 1.2.5 allows a remote attacker to terminate the daemon via an NTS request with excess NTS Cookie Placeholder extension fields.","status":"published","published":"2026-10-21T18:33:15Z","modified":"2026-10-21T18:33:22Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T15:14:13.106716Z"}],"nvd":[{"id":"CVE-2026-102483","description":"Reachable exit in NTPsec ntpd 1.1.4 through 1.2.5 allows a remote attacker to terminate the daemon via an NTS request with excess NTS Cookie Placeholder extension fields.","status":"published","published":"2026-10-21T16:17:13.91Z","modified":"2026-10-29T21:17:07.787Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T14:13:02.371082Z"}],"osv":[{"id":"CVE-2026-102483","title":"Reachable Assertion in ntpsec","description":"Reachable exit in NTPsec ntpd 1.1.4 through 1.2.5 allows a remote attacker to terminate the daemon via an NTS request with excess NTS Cookie Placeholder extension fields.","status":"published","published":"2026-10-21T15:03:41.276Z","modified":"2026-10-31T02:30:53.73335963Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T15:44:53.83521Z"},{"id":"DEBIAN-CVE-2026-102483","description":"Reachable exit in NTPsec ntpd 1.1.4 through 1.2.5 allows a remote attacker to terminate the daemon via an NTS request with excess NTS Cookie Placeholder extension fields.","status":"published","published":"2026-10-21T16:17:13.91Z","modified":"2026-10-30T09:49:08.583722048Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:48.903138Z"},{"id":"UBUNTU-CVE-2026-102483","description":"Reachable exit in NTPsec ntpd 1.1.4 through 1.2.5 allows a remote attacker to terminate the daemon via an NTS request with excess NTS Cookie Placeholder extension fields.","status":"published","published":"2026-10-21T16:17:00Z","modified":"2026-10-28T20:16:16.034971708Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:55:58.519486Z"},{"id":"openSUSE-SU-2026:12229-1","title":"libntpc1-1.2.6-1.1 on GA media","description":"These are all security issues fixed in the libntpc1-1.2.6-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-10-22T00:00:00Z","modified":"2026-10-23T17:23:11.65584675Z","updated_at":"2026-11-02T16:58:40.245664Z"}]}}
