{"id":"CVE-2026-74222","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-74222","summary":"U-Boot before 2026.10-rc5 contains a use-after-free vulnerability in the httpc_recv_cb() function within the lwIP wget implementation. When HTTP data storage fails, the callback frees…","details":"U-Boot before 2026.10-rc5 contains a use-after-free vulnerability in the httpc_recv_cb() function within the lwIP wget implementation. When HTTP data storage fails, the callback frees the connection PCB but returns ERR_BUF instead of ERR_ABRT, causing the TCP input path to access released memory and crash the bootloader.","published":"2026-09-29T21:29:23.960Z","modified":"2026-09-29T21:29:23.960Z","cvss":{"score":8.2,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/u-boot/u-boot/commit/2d94618a58aeb7630f18eee33419ce48d0fd3616","label":"u-boot/u-boot@2d94618"},"references":[{"type":"FIX","url":"https://github.com/u-boot/u-boot/commit/2d94618a58aeb7630f18eee33419ce48d0fd3616"},{"type":"WEB","url":"https://github.com/u-boot/u-boot/blob/v2026.07/net/lwip/wget.c#L194"},{"type":"WEB","url":"https://github.com/u-boot/u-boot"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/u-boot-before-2026.10-rc5-use-after-free-in-lwip-wget-receive-callback"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-29T21:29:23.960Z"}}