CVE-2026-21372— Heap-Based Buffer Overflow in Power Management IC
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，该漏洞源于在memcpy操作期间发送具有无效缓冲区大小的IOCTL请求，可能导致内存损坏。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-21372
Vulnerability Information
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Vulnerability Title
Heap-Based Buffer Overflow in Power Management IC
Source: CVE Program / CVE List V5
Vulnerability Description
Memory Corruption when sending IOCTL requests with invalid buffer sizes during memcpy operations.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
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，该漏洞源于在memcpy操作期间发送具有无效缓冲区大小的IOCTL请求，可能导致内存损坏。
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-2026-21372
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Qualcomm, Inc. · 2026-04-06 · 17 CVEs total
| CVE-2025-47392 | 8.8 HIGH | Integer Overflow or Wraparound in GPS |
| CVE-2025-47389 | 7.8 HIGH | Buffer Copy Without Checking Size of Input in Automotive Platform |
| CVE-2025-47390 | 7.8 HIGH | Buffer Over-read in Camera |
| CVE-2025-47391 | 7.8 HIGH | Stack-based Buffer Overflow in Camera Driver |
| CVE-2026-21371 | 7.8 HIGH | Buffer Over-read in WinBlast Driver |
| CVE-2026-21373 | 7.8 HIGH | Buffer Over-read in Camera |
| CVE-2026-21374 | 7.8 HIGH | Buffer Over-read in Camera |
| CVE-2026-21375 | 7.8 HIGH | Buffer Over-read in Camera |
| CVE-2026-21376 | 7.8 HIGH | Buffer Over-read in Camera |
| CVE-2026-21378 | 7.8 HIGH | Buffer Over-read in Camera |
| CVE-2026-21380 | 7.8 HIGH | Use After Free in DSP Service |
| CVE-2026-21382 | 7.8 HIGH | Buffer Copy Without Checking Size of Input in Power Management IC |
| CVE-2026-21367 | 7.6 HIGH | Buffer Over-read in WLAN Firmware |
| CVE-2026-21381 | 7.6 HIGH | Buffer Over-read in WLAN Firmware |
| CVE-2025-47400 | 7.1 HIGH | Buffer Over-read in Computer Vision |
| CVE-2025-47374 | 6.5 MEDIUM | Use After Free in Camera Driver |
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Same weakness: CWE-122
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HPE NonStop OCAX - Heap buffer overflow vulnerability
V. Comments for CVE-2026-21372
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