CVE-2025-21481

Buffer Copy Without Checking Size of Input in HLOS

State: Published
Severity: 7.8 High
Published: Sep 24, 2025
Updated: Feb 26, 2026
Reserved: Dec 18, 2024

Description

Memory corruption while performing private key encryption in trusted application.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	qualcomm

Weaknesses

CWE-120 Buffer Copy Without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

Product	Versions
SnapdragonQualcomm, Inc.	315 5G IoT ModemAffected AQT1000Affected AR8031Affected AR8035Affected C-V2X 9150Affected CSRA6620Affected CSRA6640Affected FastConnect 6200Affected FastConnect 6700Affected FastConnect 6800Affected FastConnect 6900Affected FastConnect 7800Affected Flight RB5 5G PlatformAffected QAM8255PAffected QAM8295PAffected QAM8620PAffected QAM8650PAffected QAM8775PAffected QAMSRV1HAffected QAMSRV1MAffected QCA6174AAffected QCA6391Affected QCA6420Affected QCA6421Affected QCA6426Affected and 219 more versions

Product

Versions

SnapdragonQualcomm, Inc.

315 5G IoT ModemAffected
AQT1000Affected
AR8031Affected
AR8035Affected
C-V2X 9150Affected
CSRA6620Affected
CSRA6640Affected
FastConnect 6200Affected
FastConnect 6700Affected
FastConnect 6800Affected
FastConnect 6900Affected
FastConnect 7800Affected
Flight RB5 5G PlatformAffected
QAM8255PAffected
QAM8295PAffected
QAM8620PAffected
QAM8650PAffected
QAM8775PAffected
QAMSRV1HAffected
QAMSRV1MAffected
QCA6174AAffected
QCA6391Affected
QCA6420Affected
QCA6421Affected
QCA6426Affected
and 219 more versions

References

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

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