CVE-2026-21548

Remote Denial of Service via Input Validation in Unisoc Modem

Published Aug 3, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
In nr modem, there is a possible improper input validation. This could lead to remote denial of service with System execution privileges needed.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Unisoc
Unisoc t8100
Unisoc t8200
Unisoc t8300
Unisoc t9100
Vendors & Products Unisoc
Unisoc t8100
Unisoc t8200
Unisoc t8300
Unisoc t9100
Type Values Removed Values Added
Title Remote Denial of Service via Input Validation in Unisoc Modem
Type Values Removed Values Added
Weaknesses CWE-20
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description In nr modem, there is a possible improper input validation. This could lead to remote denial of service with System execution privileges needed.
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Unisoc
Published
Updated
Aug 3, 2026, 2:27 PM
Reserved
Dec 31, 2025, 7:33 AM
Status
Deferred
Published
Aug 3, 2026, 8:17 AM
Modified
Oct 23, 2026, 10:10 PM