What is CVE-2026-21555?

CVE-2026-21555 is a high-severity vulnerability in Unisoc (Shanghai) Technologies Co., Ltd. Udx710, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-08-03.

How severe is CVE-2026-21555?

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

Improper input validation in Unisoc (Shanghai) Technologies Co., Ltd. Udx710

CVE-2026-21555

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. Udx710 — versions Yocto

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

security@unisoc.com

Frequently asked questions

What is CVE-2026-21555?: CVE-2026-21555 is a high-severity vulnerability in Unisoc (Shanghai) Technologies Co., Ltd. Udx710, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-08-03.
How severe is CVE-2026-21555?: High severity. CVSS v3 base score is 7.5 out of 10.