CVE-2026-21549: Unisoc Shanghai Technologies Co., Ltd t8100/t9100/t8200/t8300

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

In modem, there is a possible improper input validation. This could lead to remote denial of service with no additional execution privileges needed

Affected products

• Unisoc Shanghai Technologies Co., Ltd t8100/t9100/t8200/t8300

Published 2026-08-03. Last modified 2026-08-28.