Unisoc T8100/T9100/T8200/T8300 nr Modem denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Unisoc T8100, T9100, T8200 and T8300. The impacted element is an unknown function of the component nr Modem. Performing a manipulation results in denial of service. This vulnerability is cataloged as CVE-2025-71256. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Unisoc T8100, T9100, T8200 and T8300 (version now known). This affects some unknown processing of the component nr Modem. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

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

The advisory is shared at unisoc.com. This vulnerability is uniquely identified as CVE-2025-71256 since 03/02/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at EUVD (EUVD-2025-209657) and CERT Bund (WID-SEC-2026-1772). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Google Android

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (Unisoc): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/02/2026 CVE reserved
05/06/2026 +64 days Advisory disclosed
05/06/2026 +0 days VulDB entry created
06/03/2026 +28 days VulDB entry last update

Sourcesinfo

Advisory: unisoc.com
Status: Confirmed

CVE: CVE-2025-71256 (🔒)
GCVE (CVE): GCVE-0-2025-71256
GCVE (VulDB): GCVE-100-361269
EUVD: 🔒
CERT Bund: WID-SEC-2026-1772 - Google Android: Mehrere Schwachstellen

Entryinfo

Created: 05/06/2026 07:50
Updated: 06/03/2026 02:52
Changes: 05/06/2026 07:50 (62), 05/06/2026 08:17 (1), 06/03/2026 02:52 (6)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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