CVE-2025-21477

Improper Input Validation in Modem

State: Published
Severity: 7.5 High
Published: Aug 6, 2025
Updated: Aug 6, 2025
Reserved: Dec 18, 2024

Description

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

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	qualcomm

Weaknesses

CWE-20 Improper Input Validation

Affected Products

Product	Versions
SnapdragonQualcomm, Inc.	315 5G IoT ModemAffected AR8035Affected FastConnect 6200Affected FastConnect 6700Affected FastConnect 6800Affected FastConnect 6900Affected FastConnect 7800Affected QCA6391Affected QCA6574AAffected QCA6584AUAffected QCA6595AUAffected QCA6696Affected QCA6698AQAffected QCA8081Affected QCA8337Affected QCC710Affected QCM5430Affected QCM6490Affected QCN6024Affected QCN6224Affected QCN6274Affected QCN9024Affected QCS5430Affected QCS6490Affected QCS8550Affected and 64 more versions

Product

Versions

SnapdragonQualcomm, Inc.

315 5G IoT ModemAffected
AR8035Affected
FastConnect 6200Affected
FastConnect 6700Affected
FastConnect 6800Affected
FastConnect 6900Affected
FastConnect 7800Affected
QCA6391Affected
QCA6574AAffected
QCA6584AUAffected
QCA6595AUAffected
QCA6696Affected
QCA6698AQAffected
QCA8081Affected
QCA8337Affected
QCC710Affected
QCM5430Affected
QCM6490Affected
QCN6024Affected
QCN6224Affected
QCN6274Affected
QCN9024Affected
QCS5430Affected
QCS6490Affected
QCS8550Affected
and 64 more versions

References

https://docs.qualcomm.com/product/publicresources/securitybulletin/august-2025-bulletin.html

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