Unisoc Bootloader memory corruption in firmware update handling

Boot programs in phones and devices using Unisoc chips can be broken into.

Summary

Missing bounds checks in Download mode let firmware update data corrupt memory. The affected chips are Unisoc models; the vendor's name appears in the record but no device makers are named.

Affected when

Download mode available

What to do

Update these devices now.

Unisoc SC9863A
Unisoc SC9832E
Unisoc SC7731E
Unisoc T310
Unisoc T610
Unisoc T618
Unisoc T7200
Unisoc T7225
Unisoc T7250
Unisoc T7255
Unisoc T7280
Unisoc T8100
Unisoc T9100
Unisoc T8200
Unisoc T7300
Unisoc T8300

Products and platforms

Bootloader

CVE IDs

CVE-2026-80335 (opens in a new tab)

Sources

CVE record: cve.org (opens in a new tab)

Times

First published 2026-11-04 03:20 UTC

First seen 2026-11-09 15:20 UTC