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EPSS 0.3%top 78%

CVE-2025-71253: CWE-20 Improper Input Validation in Unisoc (Shanghai) Technologies Co., Ltd. SC7731E/SC9832E/SC9863A/T310/T610/T618/T7200/T7225/T7250/T7255/T7280/T7300/T8100/T9100/T8200/T8300

0
High
VulnerabilityCVE-2025-71253cvecve-2025-71253cwe-20
Published: Wed May 06 2026 (05/06/2026, 01:43:08 UTC)
Source: CVE Database V5
Vendor/Project: Unisoc (Shanghai) Technologies Co., Ltd.
Product: SC7731E/SC9832E/SC9863A/T310/T610/T618/T7200/T7225/T7250/T7255/T7280/T7300/T8100/T9100/T8200/T8300

Description

CVE-2025-71253 is a high-severity vulnerability in the modem IMS component of various Unisoc (Shanghai) Technologies chipsets affecting multiple Android versions from 13 to 16. The issue arises from improper input validation, which could allow a remote attacker to cause a denial of service without requiring any privileges or user interaction. There is no indication of impact on confidentiality or integrity, only availability. No official patch or remediation guidance has been provided yet, and no known exploits are reported in the wild. Users of affected devices should monitor vendor advisories for updates.

CVSS v3.1

Score 7.5high

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 05/13/2026, 03:46:38 UTC

Technical Analysis

This vulnerability involves improper input validation (CWE-20) in the modem IMS of Unisoc chipsets SC7731E, SC9832E, SC9863A, and others across Android versions 13 through 16. The flaw allows remote attackers to trigger a denial of service condition without needing privileges or user interaction. The CVSS 3.1 base score is 7.5, reflecting a high severity due to network attack vector, low attack complexity, no privileges required, no user interaction, and impact limited to availability. No patch or official remediation level has been disclosed by the vendor as of the publication date.

Potential Impact

The vulnerability can cause a remote denial of service on affected devices, impacting availability of the modem IMS component. There is no impact on confidentiality or integrity. No additional execution privileges are required for exploitation, and no user interaction is needed. No known exploits have been reported in the wild.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or mitigation has been announced, affected users and administrators should monitor Unisoc's advisories and apply updates once available. No other specific mitigations are provided at this time.

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Technical Details

Data Version
5.2
Assigner Short Name
Unisoc
Date Reserved
2026-03-02T05:55:13.666Z
Cvss Version
3.1
State
PUBLISHED
Remediation Level
null

Threat ID: 69fa9ea6cbff5d86108492ee

Added to database: 5/6/2026, 1:51:34 AM

Last enriched: 5/13/2026, 3:46:38 AM

Last updated: 6/20/2026, 8:40:36 AM

Views: 80

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