CVE-2026-74222

Name	CVE-2026-74222
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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
u-boot (PTS)	bookworm, bookworm (security)	2023.01+dfsg-2+deb12u3	fixed
	trixie	2025.01-3+deb13u1	fixed
	forky, sid	2025.01-3.2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
u-boot	source	(unstable)	(not affected)

Notes

- u-boot <not-affected> (Vulnerable code introduced later)
Introduced with: https://github.com/u-boot/u-boot/commit/e40c910e88a9a38ee1335ab1391dc2ee83993a65 (v2025.07-rc3)
Fixed by: https://github.com/u-boot/u-boot/commit/2d94618a58aeb7630f18eee33419ce48d0fd3616 (v2026.10-rc5)