CVE-2026-21372
Received Received - Intake
Memory Corruption via IOCTL Buffer Overflow in Qualcomm Drivers

Publication date: 2026-04-06

Last updated on: 2026-04-08

Assigner: Qualcomm, Inc.

Description
Memory Corruption when sending IOCTL requests with invalid buffer sizes during memcpy operations.
CVSS Scores
EPSS Scores
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Meta Information
Published
2026-04-06
Last Modified
2026-04-08
Generated
2026-06-16
AI Q&A
2026-04-06
EPSS Evaluated
2026-06-15
NVD
CVE-2026-21372
EUVD
EUVD-2026-19323
Affected Vendors & Products
Showing 28 associated CPEs
Vendor Product Version / Range
qualcomm cologne_firmware *
qualcomm fastconnect_6700_firmware *
qualcomm fastconnect_6900_firmware *
qualcomm fastconnect_7800_firmware *
qualcomm qcm5430_firmware *
qualcomm qcm6490_firmware *
qualcomm video_collaboration_vc3_platform_firmware *
qualcomm snapdragon_460_mobile_platform_firmware *
qualcomm snapdragon_662_mobile_platform_firmware *
qualcomm snapdragon_7c+_gen_3_compute_firmware *
qualcomm wcd9370_firmware *
qualcomm wcd9375_firmware *
qualcomm wcd9378c_firmware *
qualcomm wcd9380_firmware *
qualcomm wcd9385_firmware *
qualcomm wcn3950_firmware *
qualcomm wcn3988_firmware *
qualcomm wsa8840_firmware *
qualcomm wsa8845_firmware *
qualcomm wsa8845h_firmware *
qualcomm x2000077_firmware *
qualcomm x2000086_firmware *
qualcomm x2000090_firmware *
qualcomm x2000092_firmware *
qualcomm x2000094_firmware *
qualcomm xg101002_firmware *
qualcomm xg101032_firmware *
qualcomm xg101039_firmware *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-122 A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
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Executive Summary

This vulnerability involves memory corruption that occurs when IOCTL requests are sent with invalid buffer sizes during memcpy operations.

Impact Analysis

The vulnerability can lead to serious impacts including high confidentiality, integrity, and availability risks, as indicated by the CVSS score. Exploiting this memory corruption could allow an attacker with low privileges and local access to compromise the system.

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