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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Unisoc (Shanghai) Technologies Co., Ltd. T8100/T9100/T8200/T8300 unaffected
Version Status Constraints
Android13/Android14/Android15/Android16 affected —

No data.

No data.

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Vendors Products
Unisoc Subscribe
T8100 Subscribe
T8200 Subscribe
T8300 Subscribe
T9100 Subscribe

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.unisoc.com/en/support/product-security-bulletin/2051836844671422466 cve-icon cve-icon
History

Wed, 06 May 2026 13:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 06 May 2026 09:45:00 +0000

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

Wed, 06 May 2026 04:15:00 +0000

Type Values Removed Values Added
Title Remote Denial of Service via Improper Input Validation in Unisoc NR Modem
Weaknesses CWE-20

Wed, 06 May 2026 02:00:00 +0000

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 no additional 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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Unisoc

Published:

Updated: 2026-05-06T12:56:05.504Z

Reserved: 2026-03-02T05:55:13.666Z

Link: CVE-2025-71256

cve-icon Vulnrichment

Updated: 2026-05-06T12:56:00.247Z

cve-icon NVD

Status : Received

Published: 2026-05-06T02:16:05.213

Modified: 2026-05-06T02:16:05.213

Link: CVE-2025-71256

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-06T09:21:22Z

Weaknesses