CVE-2026-21552: CWE-20 Improper Input Validation in Unisoc (Shanghai) Technologies Co., Ltd. T8100/T9100/T8200/T8300
In modem, there is a possible improper input validation. This could lead to remote denial of service with no additional execution privileges needed
AI Analysis
Technical Summary
CVE-2026-21552 is a vulnerability in the modem components of Unisoc T8100, T9100, T8200, and T8300 products caused by improper input validation (CWE-20). This flaw can be exploited remotely to cause a denial of service (DoS) condition without needing any privileges or user interaction. The CVSS v3.1 base score is 7.5, reflecting a high severity impact focused on availability disruption. There is no information about affected software versions or available patches, and no known exploits have been reported in the wild.
Potential Impact
The vulnerability allows remote attackers to cause a denial of service on affected Unisoc modem products, impacting availability. There is no indication of confidentiality or integrity impact. No additional execution privileges or user interaction are required for exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, users should monitor Unisoc's advisories for updates. No specific mitigations are currently documented.
CVE-2026-21552: CWE-20 Improper Input Validation in Unisoc (Shanghai) Technologies Co., Ltd. T8100/T9100/T8200/T8300
Description
In modem, there is a possible improper input validation. This could lead to remote denial of service with no additional execution privileges needed
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-21552 is a vulnerability in the modem components of Unisoc T8100, T9100, T8200, and T8300 products caused by improper input validation (CWE-20). This flaw can be exploited remotely to cause a denial of service (DoS) condition without needing any privileges or user interaction. The CVSS v3.1 base score is 7.5, reflecting a high severity impact focused on availability disruption. There is no information about affected software versions or available patches, and no known exploits have been reported in the wild.
Potential Impact
The vulnerability allows remote attackers to cause a denial of service on affected Unisoc modem products, impacting availability. There is no indication of confidentiality or integrity impact. No additional execution privileges or user interaction are required for exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, users should monitor Unisoc's advisories for updates. No specific mitigations are currently documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Unisoc
- Date Reserved
- 2025-12-31T07:33:23.120Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a704b62bf32cb7a3433eb18
Added to database: 08/03/2026, 08:03:46 UTC
Last enriched: 08/03/2026, 08:18:09 UTC
Last updated: 08/03/2026, 19:36:44 UTC
Views: 10
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