CVE-2026-21379

Buffer Over-read in Windows Compute

State: Published
Severity: 7.8 High
Published: Jul 6, 2026
Updated: Jul 7, 2026
Reserved: Dec 17, 2025

Description

Memory Corruption when allocating memory with sizes that exceed the maximum allowed value.

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-126 Buffer Over-read

Affected Products

Product	Versions
SnapdragonQualcomm, Inc.	AQT1000Affected CologneAffected FastConnect 6200Affected FastConnect 6700Affected FastConnect 6800Affected FastConnect 6900Affected FastConnect 7800Affected IQX5121Affected IQX7181Affected QCA0000Affected QCA6391Affected QCA6420Affected QCA6430Affected QCM5430Affected QCM6490Affected Qualcomm Video Collaboration VC3 PlatformAffected SC8380XPAffected Snapdragon 7c+ Gen 3 ComputeAffected Snapdragon 8c Compute Platform "Poipu Lite"Affected Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite"Affected Snapdragon 8cx Compute PlatformAffected Snapdragon 8cx Compute Platform "Poipu Pro"Affected Snapdragon 8cx Gen 2 5G Compute PlatformAffected Snapdragon 8cx Gen 2 5G Compute Platform "Poipu Pro"Affected Snapdragon 8cx Gen 3 Compute PlatformAffected and 22 more versions

Product

Versions

SnapdragonQualcomm, Inc.

AQT1000Affected
CologneAffected
FastConnect 6200Affected
FastConnect 6700Affected
FastConnect 6800Affected
FastConnect 6900Affected
FastConnect 7800Affected
IQX5121Affected
IQX7181Affected
QCA0000Affected
QCA6391Affected
QCA6420Affected
QCA6430Affected
QCM5430Affected
QCM6490Affected
Qualcomm Video Collaboration VC3 PlatformAffected
SC8380XPAffected
Snapdragon 7c+ Gen 3 ComputeAffected
Snapdragon 8c Compute Platform "Poipu Lite"Affected
Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite"Affected
Snapdragon 8cx Compute PlatformAffected
Snapdragon 8cx Compute Platform "Poipu Pro"Affected
Snapdragon 8cx Gen 2 5G Compute PlatformAffected
Snapdragon 8cx Gen 2 5G Compute Platform "Poipu Pro"Affected
Snapdragon 8cx Gen 3 Compute PlatformAffected
and 22 more versions

References

https://docs.qualcomm.com/product/publicresources/securitybulletin/july-2026-bulletin.html

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