{"id":"CVE-2026-15390","title":"Das U-Boot with CONFIG_IP_DEFRAG=y parameter fails to clear IP reassembly state after delivering a complete datagram","summary":"Das U-Boot with CONFIG_IP_DEFRAG=y parameter fails to clear IP reassembly state after delivering a complete datagram. An attacker who can deliver fragmented IP traffic can execute arbitrary code by sending duplicated last-fragment IP pac…","severity":"critical","cvss":9,"cvssVector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","cwe":["CWE-459","CWE-787"],"vendor":"DENX Software Engineering","product":"Das U-Boot","affected":["das_u-boot >= 2009.08 <= 2026.07"],"published":"2026-09-29","updated":"2026-09-29","sourceUpdated":"2026-09-29T11:16:42.610","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-15390","references":[{"url":"https://cert.pl/en/posts/2026/09/CVE-2026-15390","label":"cvd@cert.pl"},{"url":"https://source.denx.de/u-boot/u-boot/-/commit/b1aec609bb5e0d08c25c888c91935287ab4ee5fa","label":"cvd@cert.pl"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-29T10:53:14.845353Z"},"cvssSource":"cna","ingestedAt":"2026-09-29T10:31:36.310Z","slug":"CVE-2026-15390","body":"## Overview\n\nDas U-Boot with CONFIG_IP_DEFRAG=y parameter fails to clear IP reassembly state after delivering a complete datagram. An attacker who can deliver fragmented IP traffic can execute arbitrary code by sending duplicated last-fragment IP packets.\n\n\nThis issue was fixed in commit b1aec609bb5e0d08c25c888c91935287ab4ee5fa in version 2026.07.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":49.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}