CVE-2026-79405— Improper Input Validation in Modem Firmware
Quick assessment
Affected
Unisoc (Shanghai) Technologies Co., Ltd. Modem
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
在调制解调器固件中，由于专用 PUCCH 配置的输入验证不当，可能导致系统崩溃。攻击者可利用此漏洞发起远程拒绝服务（DoS）攻击，且无需任何额外的执行权限。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-79405
Vulnerability Information
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Vulnerability Title
Improper Input Validation in Modem Firmware
Source: CVE Program / CVE List V5
Vulnerability Description
In Modem Firmware, there is a possible system crash due to improper input validation of dedicated PUCCH configuration. This could lead to remote denial of service with no additional execution privileges needed.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Unisoc (Shanghai) Technologies Co., Ltd. | Modem | UDX710 | - |
|
II. Public POCs for CVE-2026-79405
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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