{"id":"CVE-2015-2923","aliases":["DSA-3175-2","EUVD-2015-3008","GHSA-vgpp-7j95-7pmj"],"status":"published","title":"The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in FreeBSD through 10.1...","description":"The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in FreeBSD through 10.1 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01378,"percentile":0.72268,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2015-05-18T00:00:00Z","modified":"2026-06-17T00:24:58Z","affected":[{"source":"osv","ecosystem":"Debian:7","package":"kfreebsd-9","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0-10+deb70.10"}]}],"versions":["9.0-10","9.0-10+deb70.1","9.0-10+deb70.2","9.0-10+deb70.3","9.0-10+deb70.4","9.0-10+deb70.5","9.0-10+deb70.6","9.0-10+deb70.7","9.0-10+deb70.8","9.0-10+deb70.9"],"bundled":2}],"products":[{"vendor":"freebsd","product":"freebsd"}],"references":[{"url":"http://openwall.com/lists/oss-security/2015/04/04/2","tags":["x_refsource_MISC","x_transferred","Mailing List","Third Party Advisory"]},{"url":"https://lists.freebsd.org/pipermail/freebsd-net/2015-April/041934.html","tags":["x_refsource_MISC","x_transferred","Mailing List","Vendor Advisory"]},{"url":"https://www.freebsd.org/security/advisories/FreeBSD-SA-15:09.ipv6.asc","tags":["x_refsource_MISC","x_transferred","Mitigation","Vendor Advisory"]},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6fd99094de2b83d1d4c8457f2c83483b2828e75a","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-2923"},{"url":"https://github.com/advisories/GHSA-vgpp-7j95-7pmj"}],"sources":{"cve":[{"id":"CVE-2015-2923","description":"The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in FreeBSD through 10.1 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.","status":"published","published":"2020-02-20T03:28:30Z","modified":"2024-08-06T05:32:20.601Z","updated_at":"2026-11-02T14:35:41.976732Z"}],"euvd":[{"id":"EUVD-2015-3008","description":"The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in FreeBSD through 10.1 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.","status":"published","published":"2020-02-20T03:28:30Z","modified":"2024-08-06T05:32:20Z","updated_at":"2026-11-03T02:22:10.045369Z"}],"ghsa":[{"id":"GHSA-vgpp-7j95-7pmj","title":"The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in FreeBSD through 10.1...","description":"The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in FreeBSD through 10.1 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.","status":"published","published":"2022-05-24T17:09:23Z","modified":"2023-01-29T05:01:32Z","updated_at":"2026-11-02T14:44:50.787695Z"}],"nvd":[{"id":"CVE-2015-2923","description":"The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in FreeBSD through 10.1 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.","status":"published","published":"2020-02-20T04:15:10.883Z","modified":"2026-06-17T00:24:58.393Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":3.3,"vector":"AV:A/AC:L/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:03:19.73542Z"}],"osv":[{"id":"DSA-3175-2","title":"kfreebsd-9 - security update","status":"published","published":"2015-05-18T00:00:00Z","modified":"2026-03-09T01:18:31.717143Z","updated_at":"2026-11-02T15:46:15.843838Z"}]}}