CVE-2025-21458

HIGH

Qualcomm FastConnect 6900 Firmware - Use-After-Free via IOCTL Buffer Mapping

Title source: llm

Memory corruption when IOCTL interface is called to map and unmap buffers simultaneously.

Core 1

Core References

Patch, 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 (24)

qualcomm/fastconnect_6900_firmware

qualcomm/qam8255p_firmware

qualcomm/qam8650p_firmware

qualcomm/qam8775p_firmware

qualcomm/qca6174a_firmware

qualcomm/qca6698aq_firmware

qualcomm/qca6797aq_firmware

qualcomm/sa7255p_firmware

qualcomm/sa7775p_firmware

qualcomm/sa8255p_firmware

... and 14 more

Published Aug 06, 2025

Tracked Since Feb 18, 2026