CVE-2026-74222
HIGH
NVD
CVSS Score
8.2
Severity
HIGH
Published
Sep 29, 2026
Vendor
unknown
Description
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.