{"id":"CVE-2025-70290","aliases":[],"url":"https://o3.security/vulnerability/CVE-2025-70290","summary":"An issue was discovered in Denx U-Boot before 2026.04. An integer overflow vulnerability in the ZFS filesystem support can be triggered by malformed on-disk metadata. The issue may…","details":"An issue was discovered in Denx U-Boot before 2026.04. An integer overflow vulnerability in the ZFS filesystem support can be triggered by malformed on-disk metadata. The issue may result in incorrect memory allocation followed by out-of-bounds memory access, potentially leading to a crash or arbitrary code execution during the boot process.","published":"2026-08-26T20:16:59.550","modified":"2026-08-27T20:17:01.917","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"http://u-boot.com"},{"type":"WEB","url":"https://gist.github.com/c0zy1/4d9648d10a5ff07bda2771ea1298e469"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T20:17:01.917"}}