CVE-2025-21477

HIGH

Qualcomm 315 5G IoT Modem Firmware - Denial of Service via Invalid CCCH Data Length

Title source: llm
STIX 2.1

Description

Transient DOS while processing CCCH data when NW sends data with invalid length.

References (1)

Core 1

Scores

CVSS v3 7.5
EPSS 0.0012
EPSS Percentile 30.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-20
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/fastconnect_7800_firmware
qualcomm/qca6391_firmware
qualcomm/qca6574a_firmware
qualcomm/qca6584au_firmware
... and 40 more
Published Aug 06, 2025
Tracked Since Feb 18, 2026