{"id":"CVE-2022-27881","aliases":["EUVD-2022-32369","GHSA-c8w2-c5ch-hg9w"],"status":"published","title":"engine.c in slaacd in OpenBSD 6.9 and 7.0 before 2022-02-21 has a buffer overflow triggerable by...","description":"engine.c in slaacd in OpenBSD 6.9 and 7.0 before 2022-02-21 has a buffer overflow triggerable by an IPv6 router advertisement with more than seven nameservers. NOTE: privilege separation and pledge can prevent exploitation.","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":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01898,"percentile":0.79953,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2022-03-25T17:13:08Z","modified":"2026-06-17T04:37:41Z","products":[{"vendor":"openbsd","product":"openbsd"}],"references":[{"url":"https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/014_slaacd.patch.sig","tags":["x_refsource_MISC","x_transferred","Patch","Release Notes","Vendor Advisory"]},{"url":"https://blog.quarkslab.com/heap-overflow-in-openbsds-slaacd-via-router-advertisement.html","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory"]},{"url":"https://ftp.openbsd.org/pub/OpenBSD/patches/6.9/common/030_slaacd.patch.sig","tags":["x_refsource_MISC","x_transferred","Patch","Release Notes","Vendor Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20220506-0005/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-27881"},{"url":"https://github.com/advisories/GHSA-c8w2-c5ch-hg9w"}],"sources":{"cve":[{"id":"CVE-2022-27881","description":"engine.c in slaacd in OpenBSD 6.9 and 7.0 before 2022-02-21 has a buffer overflow triggerable by an IPv6 router advertisement with more than seven nameservers. NOTE: privilege separation and pledge can prevent exploitation.","status":"published","published":"2022-03-25T17:13:08Z","modified":"2024-08-03T05:41:10.307Z","updated_at":"2026-11-02T14:34:34.250357Z"}],"euvd":[{"id":"EUVD-2022-32369","description":"engine.c in slaacd in OpenBSD 6.9 and 7.0 before 2022-02-21 has a buffer overflow triggerable by an IPv6 router advertisement with more than seven nameservers. NOTE: privilege separation and pledge can prevent exploitation.","status":"published","published":"2022-03-25T17:13:08Z","modified":"2024-08-03T05:41:10Z","updated_at":"2026-11-03T03:25:41.906388Z"}],"ghsa":[{"id":"GHSA-c8w2-c5ch-hg9w","title":"engine.c in slaacd in OpenBSD 6.9 and 7.0 before 2022-02-21 has a buffer overflow triggerable by...","description":"engine.c in slaacd in OpenBSD 6.9 and 7.0 before 2022-02-21 has a buffer overflow triggerable by an IPv6 router advertisement with more than seven nameservers. NOTE: privilege separation and pledge can prevent exploitation.","status":"published","published":"2022-03-26T00:00:32Z","modified":"2023-01-27T05:01:03Z","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-120"],"updated_at":"2026-11-02T14:41:48.523978Z"}],"nvd":[{"id":"CVE-2022-27881","description":"engine.c in slaacd in OpenBSD 6.9 and 7.0 before 2022-02-21 has a buffer overflow triggerable by an IPv6 router advertisement with more than seven nameservers. NOTE: privilege separation and pledge can prevent exploitation.","status":"published","published":"2022-03-25T18:15:27.617Z","modified":"2026-06-17T04:37:41.21Z","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":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:07:14.24948Z"}]}}