CVE-2025-21452

HIGH

Qualcomm 315 5G IoT Modem Firmware - Denial of Service via Invalid PDU Length in RAR

Title source: llm

Transient DOS while processing a random-access response (RAR) with an invalid PDU length on LTE network.

Core 1

Core References

Vendor Advisory

CVSS v3 7.5

EPSS 0.0019

EPSS Percentile 9.1%

Attack Vector NETWORK

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

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

CWE

CWE-617

Status published

Products (50)

qualcomm/315_5g_iot_modem_firmware

qualcomm/ar8035_firmware

qualcomm/fastconnect_6200_firmware

qualcomm/fastconnect_6700_firmware

qualcomm/fastconnect_6800_firmware

qualcomm/fastconnect_6900_firmware

qualcomm/fsm10055_firmware

qualcomm/qca6174a_firmware

qualcomm/qca6391_firmware

qualcomm/qca6421_firmware

... and 40 more

Published Aug 06, 2025

Tracked Since Feb 18, 2026