{"id":"CVE-2026-80552","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-80552","summary":"s390/vfio_ccw: Ensure index for read/write regions are within range","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/vfio_ccw: Ensure index for read/write regions are within range\n\nThe introduction of the capability chain rightly clamped the\nregion indexes to the range of the capabilities itself, but\nneglected to do so for the existing read/write regions which\nshould also be enforced.","published":"2026-08-26T14:37:21.178Z","modified":"2026-08-28T03:47:28.984949774Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"5.15.218"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3acbedf5c0b8e0971f0de423c05cc02bbf6ddb99"},{"type":"WEB","url":"https://git.kernel.org/stable/c/649badf3a2fd8929e40198603a2cb21b74c21700"},{"type":"WEB","url":"https://git.kernel.org/stable/c/79ea5e0c4c8a9842ae85f45062d947b3297dfc07"},{"type":"WEB","url":"https://git.kernel.org/stable/c/988d9b5be3c2c4baf9457ce8e11b477e13eb9fcf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9f5f9a78fedc45bc29d6a0a64e3a3472361afae5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d3b1e38404b22df5a1f93019f2bb656feaad5ae3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d597fa1273802941c7801202135976fecc29672b"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80552.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80552"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-28T03:47:28.984949774Z"}}