{"id":"CVE-2026-71971","revision":"31a6dcae47ca426f83d6a3ffec5bfb75","records":[{"revision":"31a6dcae47ca426f83d6a3ffec5bfb75","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-71971","aliases":[],"title":"U-Boot before 2026.10-rc3 Out-of-Bounds Write in IP Fragment Reassembly","description":"U-Boot before 2026.10-rc3 with CONFIG_IP_DEFRAG enabled contains an out-of-bounds write vulnerability in the __net_defragment() function in net/net.c. Remote attackers can send a crafted IP fragment with non-zero offset and More-Fragments flag set during netboot to corrupt adjacent memory and crash the bootloader.","state":0,"publishedAt":"2026-09-29T21:29:20.055+00:00","modifiedAt":"2026-09-30T14:03:55.512+00:00","affected":[{"ecosystem":"Vendor product","name":"u-boot","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"u-boot\",\n                    \"product\": \"u-boot\",\n                    \"repo\": \"https://github.com/u-boot/u-boot\",\n                    \"packageURL\": \"pkg:github/u-boot/u-boot\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2026.10-rc3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N","score":8.8,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","score":8.2,"severity":"HIGH"}],"references":["https://github.com/u-boot/u-boot/commit/04ca915d5bf39dda5d1bce62d04d2b59d293c5b9","https://github.com/u-boot/u-boot/blob/v2026.07/net/net.c#L975","https://github.com/u-boot/u-boot","https://www.vulncheck.com/advisories/u-boot-before-2026.10-rc3-out-of-bounds-write-in-ip-fragment-reassembly"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-71971","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-71971","identifiers":["CVE-2026-71971"]},"retained":false,"historicalAffected":[]}],"coverage":[]}