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CVE-2026-25268— Stack-based Buffer Overflow in WLAN Host

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Qualcomm公司的一系列芯片组。 Qualcomm Chipsets存在缓冲区错误漏洞，该漏洞源于在处理动态信道切换操作期间的无效HT40信道布局时存在内存损坏问题，可能导致内存损坏。以下版本受到影响：5G Fixed Wireless Access Platform、AR8035、CQ7790、CQ8725S、CSR8811、FastConnect 6700、FastConnect 6900、FastConnect 7800、FWA Gen 3 Ultra P

CVSS 8.8 · High EPSS 0.11% · P1

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 128

VendorProduct Version RangeStatus
Qualcomm, Inc. Snapdragon 5G Fixed Wireless Access Platform affected
AR8035 affected
CQ7790 affected
CQ8725S affected
CSR8811 affected
FastConnect 6700 affected
FastConnect 6900 affected
FastConnect 7800 affected
… +120 more rows
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I. Basic Information for CVE-2026-25268

Vulnerability Information
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Vulnerability Title
Stack-based Buffer Overflow in WLAN Host
Source: CVE Program / CVE List V5
Vulnerability Description
Memory Corruption when processing invalid HT40 channel layouts during dynamic channel switching operations.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Qualcomm Chipsets 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Qualcomm Chipsets是美国Qualcomm公司的一系列芯片组。 Qualcomm Chipsets存在缓冲区错误漏洞，该漏洞源于在处理动态信道切换操作期间的无效HT40信道布局时存在内存损坏问题，可能导致内存损坏。以下版本受到影响：5G Fixed Wireless Access Platform、AR8035、CQ7790、CQ8725S、CSR8811、FastConnect 6700、FastConnect 6900、FastConnect 7800、FWA Gen 3 Ultra P
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 5G Fixed Wireless Access Platform -

II. Public POCs for CVE-2026-25268

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III. Intelligence Information for CVE-2026-25268

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Vendor Advisories for CVE-2026-25268 (1)

Same Patch Batch · Qualcomm, Inc. · 2026-07-06 · 11 CVEs total

CVE-2026-25271 7.8 HIGH Time-of-check Time-of-use (TOCTOU) Race Condition in DSP Service
CVE-2026-21379 7.8 HIGH Buffer Over-read in Windows Compute
CVE-2026-21383 7.1 HIGH Reusing a Nonce, Key Pair in Encryption in HLOS
CVE-2025-59617 6.6 MEDIUM Use After Free in Computer Vision
CVE-2025-59616 6.6 MEDIUM Use After Free in Computer Vision
CVE-2025-59615 6.6 MEDIUM Use After Free in Computer Vision
CVE-2026-21384 5.3 MEDIUM Out-of-bounds Write in Camera Driver
CVE-2026-21370 5.3 MEDIUM Out-of-bounds Write in Camera Driver
CVE-2026-21369 5.3 MEDIUM Out-of-bounds Write in Camera Driver
CVE-2026-21368 5.3 MEDIUM Out-of-bounds Write in Camera Driver

IV. Related Vulnerabilities

Same product: Snapdragon
Same vendor: Qualcomm, Inc.
Same weakness: CWE-121