CVE-2026-21549: 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
This vulnerability (CVE-2026-21549) affects the modem components of Unisoc's T8100, T9100, T8200, and T8300 products. The root cause is improper input validation, classified under CWE-20. Exploitation could lead to a remote denial of service (DoS) condition, impacting availability. The CVSS v3.1 base score is 7.5, reflecting high severity with network attack vector, low attack complexity, no privileges required, no user interaction, and impact limited to availability. No information about patches or vendor advisories is available at this time.
Potential Impact
Successful exploitation results in a remote denial of service, causing disruption of service availability on affected devices. There is no impact on confidentiality or integrity, and no additional execution privileges are needed for exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor vendor communications for updates. No specific mitigations are provided in the available data.
CVE-2026-21549: 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
This vulnerability (CVE-2026-21549) affects the modem components of Unisoc's T8100, T9100, T8200, and T8300 products. The root cause is improper input validation, classified under CWE-20. Exploitation could lead to a remote denial of service (DoS) condition, impacting availability. The CVSS v3.1 base score is 7.5, reflecting high severity with network attack vector, low attack complexity, no privileges required, no user interaction, and impact limited to availability. No information about patches or vendor advisories is available at this time.
Potential Impact
Successful exploitation results in a remote denial of service, causing disruption of service availability on affected devices. There is no impact on confidentiality or integrity, and no additional execution privileges are needed for exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor vendor communications for updates. No specific mitigations are provided in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Unisoc
- Date Reserved
- 2025-12-31T07:33:23.119Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a704b62bf32cb7a3433eb0f
Added to database: 08/03/2026, 08:03:46 UTC
Last enriched: 08/03/2026, 08:18:34 UTC
Last updated: 08/04/2026, 01:05:34 UTC
Views: 10
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