CVE-2025-21456

HIGH

Qualcomm AR8035 Firmware - Use-After-Free via Concurrent IOCTL Buffer Mapping

Title source: llm

Memory corruption while processing IOCTL command when multiple threads are called to map/unmap buffer concurrently.

Core 1

Core References

Vendor Advisory

CVSS v3 7.8

EPSS 0.0003

EPSS Percentile 7.5%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

CWE

CWE-416

Status published

Products (50)

qualcomm/ar8035_firmware

qualcomm/c-v2x_9150_firmware

qualcomm/fastconnect_6900_firmware

qualcomm/fastconnect_7800_firmware

qualcomm/qam8255p_firmware

qualcomm/qam8295p_firmware

qualcomm/qam8650p_firmware

qualcomm/qam8775p_firmware

qualcomm/qca6174a_firmware

qualcomm/qca6574au_firmware

... and 40 more

Published Aug 06, 2025

Tracked Since Feb 18, 2026