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

CVE-2026-79405

In Modem Firmware, there is a possible system crash due to improper input validation of dedicated PUCCH configuration. This could lead to remote denial of service with no additional execution privileges needed.

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

Published .

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.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-79405?
CVE-2026-79405 is a high-severity vulnerability in Unisoc (Shanghai) Technologies Co., Ltd. Modem, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-11-04.
How severe is CVE-2026-79405?
High severity. CVSS v3 base score is 7.5 out of 10.