{"id":"CVE-2025-70290","title":"An issue was discovered in Denx U-Boot before 2026.04","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 result in incorrect memory allocation followed by out-of…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-190","CWE-787"],"published":"2026-08-26","updated":"2026-09-09","sourceUpdated":"2026-09-09T16:04:24.933","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-70290","references":[{"url":"http://u-boot.com","label":"cve@mitre.org"},{"url":"https://gist.github.com/c0zy1/4d9648d10a5ff07bda2771ea1298e469","label":"cve@mitre.org"}],"tags":["nvd"],"epss":0.0046,"epssPercentile":0.39157,"ingestedAt":"2026-09-09T16:14:05.516Z","slug":"CVE-2025-70290","body":"## Overview\n\nAn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}