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CVE-2025-47406— Buffer Over-read in DSP Service

Quick assessment

Affected
Qualcomm, Inc. Snapdragon
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.

Qualcomm Chipsets是美国高通（Qualcomm）公司的一系列芯片组。 Qualcomm Chipsets存在安全漏洞，该漏洞源于处理IOCTL处理程序回调时未验证缓冲区大小，可能导致信息泄露。

CVSS 6.1 · Medium EPSS 0.07% · P0

Affected Version Matrix 31

VendorProduct Version RangeStatus
Qualcomm, Inc. Snapdragon Cologne affected
FastConnect 6700 affected
FastConnect 6900 affected
FastConnect 7800 affected
IQX5121 affected
IQX7181 affected
QCA0000 affected
QCM5430 affected
… +23 more rows
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I. Basic Information for CVE-2025-47406

Vulnerability Information
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Vulnerability Title
Buffer Over-read in DSP Service
Source: CVE Program / CVE List V5
Vulnerability Description
Information Disclosure while processing IOCTL handler callbacks without verifying buffer size.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
缓冲区上溢读取
Source: CVE Program / CVE List V5
Vulnerability Title
Qualcomm Chipsets 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Qualcomm Chipsets是美国高通（Qualcomm）公司的一系列芯片组。 Qualcomm Chipsets存在安全漏洞，该漏洞源于处理IOCTL处理程序回调时未验证缓冲区大小，可能导致信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Qualcomm, Inc. Snapdragon Cologne -

II. Public POCs for CVE-2025-47406

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III. Intelligence Information for CVE-2025-47406

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Same Patch Batch · Qualcomm, Inc. · 2026-05-04 · 10 CVEs total

CVE-2026-25293 9.6 CRITICAL Incorrect authorization in PLC FW
CVE-2026-24082 7.8 HIGH Use After Free in Automotive GPU
CVE-2025-47408 7.8 HIGH Untrusted Pointer Dereference in Power Optimization Firmware
CVE-2025-47407 7.8 HIGH Time-of-check Time-of-use (TOCTOU) Race Condition in DSP Service
CVE-2025-47405 7.8 HIGH Untrusted Pointer Dereference in Camera
CVE-2025-47404 6.5 MEDIUM Buffer Copy Without Checking Size of Input in Automotive Audio
CVE-2025-47403 6.5 MEDIUM Buffer Over-read in WLAN Firmware
CVE-2025-47401 6.5 MEDIUM Buffer Over-read in WLAN HAL
CVE-2026-25266 5.5 MEDIUM Exposed dangerous function in windows host

IV. Related Vulnerabilities

Same product: Snapdragon
Same vendor: Qualcomm, Inc.
Same weakness: CWE-126