CVE-2026-74222
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W U-Boot występuje luka use-after-free, co prowadzi do awarii bootloadera.
CVSS
8.2
EPSS
0.3%
Exploit
none
Vendor
Opis źródłowy (NVD)
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.
brak
Brak patcha
Źródła i daty
| Źródło | Wartość |
|---|---|
| NVD – CVSS | 8.2 |
| CISA KEV (aktywnie wykorzystywane) | Nie |
| FIRST EPSS (prawdopodobieństwo exploita) | 0.3% |
| Opublikowano (NVD) | 2026-09-29 22:18:33 UTC |
| Ostatnia modyfikacja (NVD) | 2026-10-02 13:17:54 UTC |
Referencje
- https://github.com/u-boot/u-boot ([email protected])
- https://github.com/u-boot/u-boot/blob/v2026.07/net/lwip/wget.c#L194 ([email protected])
- https://github.com/u-boot/u-boot/commit/2d94618a58aeb7630f18eee33419ce48d0fd3616 ([email protected])
- https://www.vulncheck.com/advisories/u-boot-before-2026.10-rc5-use-after-free-in-lwip-wget-receive-callback ([email protected])