What is CVE-2026-21551?

CVE-2026-21551 is a high-severity vulnerability in Unisoc (Shanghai) Technologies Co., Ltd. T8100/t9100/t8200/t8300, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-08-03.

How severe is CVE-2026-21551?

High severity. CVSS v3 base score is 7.5 out of 10.

Improper input validation in Unisoc (Shanghai) Technologies Co., Ltd. T8100/t9100/t8200/t8300

CVE-2026-21551

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

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Unisoc (Shanghai) Technologies Co., Ltd. T8100/t9100/t8200/t8300 — versions Android13/Android14/Android15/Android16

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

security@unisoc.com

Frequently asked questions

What is CVE-2026-21551?: CVE-2026-21551 is a high-severity vulnerability in Unisoc (Shanghai) Technologies Co., Ltd. T8100/t9100/t8200/t8300, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-08-03.
How severe is CVE-2026-21551?: High severity. CVSS v3 base score is 7.5 out of 10.