{"id":"CVE-2026-72066","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-72066","summary":"cpu: hotplug: Bound hotplug states sysfs output","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ncpu: hotplug: Bound hotplug states sysfs output\n\nstates_show() adds CPU hotplug state names into a single sysfs buffer\nusing sprintf(). With enough registered states, this can write past the\nend of the PAGE_SIZE buffer.\n\nUse sysfs_emit_at() so output is bounded.","published":"2026-08-15T05:52:19.527Z","modified":"2026-08-18T03:56:19.507248586Z","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"5.15.212"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2408be459c70ef4250da1a9e50f5478e6b250d61"},{"type":"WEB","url":"https://git.kernel.org/stable/c/61a73a123ac7a7fbc57382531f8cb7092d569aba"},{"type":"WEB","url":"https://git.kernel.org/stable/c/631d53102da9f469c96b882b770336bec095b833"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6cb15b81ff545840048fb0e1a6e827d560dbf367"},{"type":"WEB","url":"https://git.kernel.org/stable/c/86f436567f2516a0083b210bedc933544826a2c3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/998f66e9ce320f3433f60b948e3698b744754a46"},{"type":"WEB","url":"https://git.kernel.org/stable/c/de4d3d8ae17dc8b4cf8c59436c4b7e2dc2491635"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72066.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72066"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-18T03:56:19.507248586Z"}}