{"id":"CVE-2026-15390","aliases":["AZL-105729","DEBIAN-CVE-2026-15390","EUVD-2026-88699","GHSA-vm4x-pmjm-j3wm","UBUNTU-CVE-2026-15390","USN-8884-1"],"status":"published","title":"Out-of-bounds write in Das U-Boot","description":"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 packets.\n\n\nThis issue was fixed in commit b1aec609bb5e0d08c25c888c91935287ab4ee5fa in version 2026.07.","severity":{"version":"4.0","score":9,"vector":"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","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00195,"percentile":0.09287,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-459","CWE-787"],"published":"2026-09-29T10:04:31Z","modified":"2026-10-17T12:58:05Z","fixes":[{"ecosystem":"Ubuntu:Pro:16.04:LTS","package":"u-boot","fixed_in":["2016.01+dfsg1-2ubuntu5+esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:18.04:LTS","package":"u-boot","fixed_in":["2020.10+dfsg-1ubuntu0~18.04.3+esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:20.04:LTS","package":"u-boot","fixed_in":["2021.01+dfsg-3ubuntu0~20.04.6+esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:22.04:LTS","package":"u-boot","fixed_in":["2022.01+dfsg-2ubuntu2.8"],"sources":["osv"]},{"ecosystem":"Ubuntu:24.04:LTS","package":"u-boot","fixed_in":["2025.10-0ubuntu0.24.04.3"],"sources":["osv"]},{"ecosystem":"Ubuntu:26.10","package":"u-boot","fixed_in":["2025.10-0ubuntu5"],"sources":["osv"]},{"ecosystem":"Ubuntu:26.04:LTS","package":"u-boot","fixed_in":["2025.10-0ubuntu2.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"10.1.0-1"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"u-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2023.01+dfsg-2","2023.01+dfsg-2+deb12u1","2023.01+dfsg-2+deb12u2","2023.01+dfsg-2+deb12u3","2023.04+dfsg-1","2023.04~rc2+dfsg-1","2023.04~rc5+dfsg-1","2023.07+dfsg-1","2023.07~rc4+dfsg-1","2023.07~rc5+dfsg-1","2024.01+dfsg-1","2024.01+dfsg-2","2024.01+dfsg-3","2024.01+dfsg-4","2024.01+dfsg-5","2024.01+dfsg-6","2024.01+dfsg-7","2024.01~rc6+dfsg-1","2024.01~rc6+dfsg-2","2025.01-1","2025.01-2","2025.01-3","2025.01-3.1","2025.01-3.2"]},{"source":"osv","ecosystem":"Debian:13","package":"u-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2025.01-3","2025.01-3+deb13u1","2025.01-3.1","2025.01-3.2"]},{"source":"osv","ecosystem":"Debian:14","package":"u-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2025.01-3","2025.01-3.1","2025.01-3.2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"u-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2016.01+dfsg1-2ubuntu5+esm1"}]}],"versions":["2015.04+dfsg1-2ubuntu1","2015.10+dfsg1-2","2015.10+dfsg1-3","2015.10+dfsg1-4","2016.01+dfsg1-1","2016.01+dfsg1-1ubuntu1","2016.01+dfsg1-2ubuntu1","2016.01+dfsg1-2ubuntu2","2016.01+dfsg1-2ubuntu3","2016.01+dfsg1-2ubuntu5"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"u-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"}]}],"versions":["2016.03+dfsg1-6ubuntu2","2018.07~rc3+dfsg1-0ubuntu1~18.04.1","2018.07~rc3+dfsg1-0ubuntu2~18.04.1","2018.07~rc3+dfsg1-0ubuntu3~18.04.1","2019.07+dfsg-1ubuntu4~18.04.1","2020.10+dfsg-1ubuntu0~18.04.2","2020.10+dfsg-1ubuntu0~18.04.3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"u-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2021.01+dfsg-3ubuntu0~20.04.6+esm1"}]}],"versions":["2019.07+dfsg-1ubuntu3","2019.07+dfsg-1ubuntu5","2019.07+dfsg-1ubuntu6","2020.10+dfsg-1ubuntu0~20.04.2","2021.01+dfsg-3ubuntu0~20.04.1","2021.01+dfsg-3ubuntu0~20.04.3","2021.01+dfsg-3ubuntu0~20.04.4","2021.01+dfsg-3ubuntu0~20.04.5","2021.01+dfsg-3ubuntu0~20.04.6"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"u-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2022.01+dfsg-2ubuntu2.8"}]}],"versions":["2021.07+dfsg-0ubuntu8","2021.07+dfsg-0ubuntu9","2021.07+dfsg-0ubuntu10","2022.01+dfsg-2ubuntu1","2022.01+dfsg-2ubuntu2","2022.01+dfsg-2ubuntu2.1","2022.01+dfsg-2ubuntu2.3","2022.01+dfsg-2ubuntu2.4","2022.01+dfsg-2ubuntu2.5","2022.01+dfsg-2ubuntu2.6","2022.01+dfsg-2ubuntu2.7"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"u-boot-nezha","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2021.09+git20211008.62392d3-0ubuntu1","2022.04+git20220405.7446a472-0ubuntu0.1","2022.04+git20220405.7446a472-0ubuntu0.2","2022.04+git20220405.7446a472-0ubuntu0.3","2022.04+git20220405.7446a472-0ubuntu0.4"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"u-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2025.10-0ubuntu0.24.04.3"}]}],"versions":["2023.07+dfsg-1ubuntu2","2024.01+dfsg-1ubuntu1","2024.01+dfsg-1ubuntu2","2024.01+dfsg-1ubuntu3","2024.01+dfsg-1ubuntu4","2024.01+dfsg-1ubuntu5","2024.01+dfsg-1ubuntu5.1","2024.01+dfsg-1ubuntu5.2","2025.01-0ubuntu0.24.04.1","2025.01-0ubuntu0.24.04.2","2025.10-0ubuntu0.24.04.1","2025.10-0ubuntu0.24.04.2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"u-boot-nezha","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2022.10-1089-g528ae9bc6c-0ubuntu2","2024.01~rc1-190-g2e89b706f5-0ubuntu1","2024.01~rc1-190-g2e89b706f5-0ubuntu2","2024.01~rc1-190-g2e89b706f5-0ubuntu2.24.04.2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"u-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2025.10-0ubuntu5"}]}],"versions":["2025.10-0ubuntu2","2025.10-0ubuntu3","2025.10-0ubuntu4"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"u-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2025.10-0ubuntu2.1"}]}],"versions":["2025.01-3ubuntu4","2025.10-0ubuntu1","2025.10-0ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"u-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2016.01+dfsg1-2ubuntu5+esm1"}]}],"versions":["2015.04+dfsg1-2ubuntu1","2015.10+dfsg1-2","2015.10+dfsg1-3","2015.10+dfsg1-4","2016.01+dfsg1-1","2016.01+dfsg1-1ubuntu1","2016.01+dfsg1-2ubuntu1","2016.01+dfsg1-2ubuntu2","2016.01+dfsg1-2ubuntu3","2016.01+dfsg1-2ubuntu5"],"bundled":4},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"u-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2020.10+dfsg-1ubuntu0~18.04.3+esm1"}]}],"versions":["2016.03+dfsg1-6ubuntu2","2018.07~rc3+dfsg1-0ubuntu1~18.04.1","2018.07~rc3+dfsg1-0ubuntu2~18.04.1","2018.07~rc3+dfsg1-0ubuntu3~18.04.1","2019.07+dfsg-1ubuntu4~18.04.1","2020.10+dfsg-1ubuntu0~18.04.2","2020.10+dfsg-1ubuntu0~18.04.3"],"bundled":4},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"u-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2021.01+dfsg-3ubuntu0~20.04.6+esm1"}]}],"versions":["2019.07+dfsg-1ubuntu3","2019.07+dfsg-1ubuntu5","2019.07+dfsg-1ubuntu6","2020.10+dfsg-1ubuntu0~20.04.2","2021.01+dfsg-3ubuntu0~20.04.1","2021.01+dfsg-3ubuntu0~20.04.3","2021.01+dfsg-3ubuntu0~20.04.4","2021.01+dfsg-3ubuntu0~20.04.5","2021.01+dfsg-3ubuntu0~20.04.6"],"bundled":4},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"u-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2022.01+dfsg-2ubuntu2.8"}]}],"versions":["2021.07+dfsg-0ubuntu8","2021.07+dfsg-0ubuntu9","2021.07+dfsg-0ubuntu10","2022.01+dfsg-2ubuntu1","2022.01+dfsg-2ubuntu2","2022.01+dfsg-2ubuntu2.1","2022.01+dfsg-2ubuntu2.3","2022.01+dfsg-2ubuntu2.4","2022.01+dfsg-2ubuntu2.5","2022.01+dfsg-2ubuntu2.6","2022.01+dfsg-2ubuntu2.7"],"bundled":4},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"u-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2025.10-0ubuntu0.24.04.3"}]}],"versions":["2023.07+dfsg-1ubuntu2","2024.01+dfsg-1ubuntu1","2024.01+dfsg-1ubuntu2","2024.01+dfsg-1ubuntu3","2024.01+dfsg-1ubuntu4","2024.01+dfsg-1ubuntu5","2024.01+dfsg-1ubuntu5.1","2024.01+dfsg-1ubuntu5.2","2025.01-0ubuntu0.24.04.1","2025.01-0ubuntu0.24.04.2","2025.10-0ubuntu0.24.04.1","2025.10-0ubuntu0.24.04.2"],"bundled":4},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"u-boot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2025.10-0ubuntu2.1"}]}],"versions":["2025.01-3ubuntu4","2025.10-0ubuntu1","2025.10-0ubuntu2"],"bundled":4}],"products":[{"vendor":"denx software engineering","product":"das u-boot"}],"references":[{"url":"https://cert.pl/en/posts/2026/09/CVE-2026-15390","tags":["third-party-advisory","report"]},{"url":"https://source.denx.de/u-boot/u-boot/-/commit/b1aec609bb5e0d08c25c888c91935287ab4ee5fa","tags":["patch","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15390","tags":["web"]},{"url":"https://github.com/advisories/GHSA-vm4x-pmjm-j3wm"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-15390","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-15390","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-15390","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-8884-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-70290","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2025-70293","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-71971","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-15390","title":"Out-of-bounds write in Das U-Boot","description":"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 packets.\n\n\nThis issue was fixed in commit b1aec609bb5e0d08c25c888c91935287ab4ee5fa in version 2026.07.","status":"published","published":"2026-09-29T10:04:31.905Z","modified":"2026-09-29T10:55:43.07Z","cvss":[{"version":"4.0","score":9,"vector":"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","level":"critical","assessor":"cna"}],"cwes":["CWE-787","CWE-459"],"updated_at":"2026-11-02T13:47:51.033687Z"}],"euvd":[{"id":"EUVD-2026-88699","description":"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 packets.\n\n\nThis issue was fixed in commit b1aec609bb5e0d08c25c888c91935287ab4ee5fa in version 2026.07.","status":"published","published":"2026-09-29T10:04:31Z","modified":"2026-09-29T10:55:43Z","cvss":[{"version":"4.0","score":9,"vector":"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","level":"critical"}],"updated_at":"2026-11-02T17:27:52.331616Z"}],"ghsa":[{"id":"GHSA-vm4x-pmjm-j3wm","title":"Das U-Boot with CONFIG_IP_DEFRAG=y parameter fails to clear IP reassembly state after delivering...","description":"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 packets.\n\n\nThis issue was fixed in commit b1aec609bb5e0d08c25c888c91935287ab4ee5fa in version 2026.07.","status":"published","published":"2026-09-29T12:31:29Z","modified":"2026-09-29T12:31:33Z","cvss":[{"version":"4.0","score":9,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"}],"cwes":["CWE-459"],"updated_at":"2026-11-02T15:12:33.186319Z"}],"nvd":[{"id":"CVE-2026-15390","description":"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 packets.\n\n\nThis issue was fixed in commit b1aec609bb5e0d08c25c888c91935287ab4ee5fa in version 2026.07.","status":"published","published":"2026-09-29T10:17:11.237Z","modified":"2026-09-30T19:38:27.293Z","cvss":[{"version":"4.0","score":9,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"}],"cwes":["CWE-459","CWE-787"],"updated_at":"2026-11-02T14:12:52.413234Z"}],"osv":[{"id":"DEBIAN-CVE-2026-15390","description":"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 packets.   This issue was fixed in commit b1aec609bb5e0d08c25c888c91935287ab4ee5fa in version 2026.07.","status":"published","published":"2026-09-29T10:17:11.237Z","modified":"2026-10-01T08:47:27.712604825Z","cvss":[{"version":"4.0","score":9,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"}],"updated_at":"2026-11-02T15:45:52.562592Z"},{"id":"UBUNTU-CVE-2026-15390","description":"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 packets. This issue was fixed in commit b1aec609bb5e0d08c25c888c91935287ab4ee5fa in version 2026.07.","status":"published","published":"2026-09-29T10:17:00Z","modified":"2026-10-17T12:58:05.996631813Z","cvss":[{"version":"4.0","score":9,"vector":"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","level":"critical"}],"updated_at":"2026-11-02T16:56:00.592716Z"},{"id":"AZL-105729","title":"CVE-2026-15390 affecting package qemu 10.1.0-1","description":"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 packets.\n\n\nThis issue was fixed in commit b1aec609bb5e0d08c25c888c91935287ab4ee5fa in version 2026.07.","status":"published","published":"2026-09-29T10:17:11Z","modified":"2026-10-15T05:37:09Z","updated_at":"2026-11-02T15:28:01.09948Z"},{"id":"USN-8884-1","title":"u-boot vulnerabilities","description":"Timo Preißl discovered that U-Boot incorrectly handled certain malformed\nZFS file system metadata. An attacker could possibly use this issue to\ntrigger an integer overflow and out-of-bounds memory access, resulting in\narbitrary code execution or a denial of service. (CVE-2025-70290)\n\nTimo Preißl discovered that U-Boot incorrectly calculated buffer sizes when\nprocessing certain ext4 file systems. An attacker could possibly use this\nissue to trigger an integer overflow and out-of-bounds memory access,\nresulting in arbitrary code execution or a denial of service. This issue\nonly affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu\n24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2025-70293)\n\nMateusz Furdyna discovered that U-Boot incorrectly handled certain\nfragmented IP traffic when IP defragmentation was enabled. An attacker\ncould possibly use this issue to corrupt memory by sending crafted IP\nfragments, resulting in arbitrary code execution. (CVE-2026-15390)\n\nShahriyar Jalayeri and Mehrun P. Hunter discovered that U-Boot incorrectly\nhandled certain fragmented IP traffic during network boot when IP\ndefragmentation was enabled. An attacker could possibly use this issue to\ntrigger an out-of-bounds write, resulting in a denial of service.\n(CVE-2026-71971)","status":"published","published":"2026-10-06T16:09:02Z","modified":"2026-10-07T04:41:44.038645118Z","updated_at":"2026-11-02T16:58:26.907654Z"}]}}