Integer Overflow or Wraparound in Data Network Stack & Connectivity

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-21366
StatePUBLISHED
Assignerqualcomm
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-04 16:16:22 UTC
Updated2026-08-06 18:33:50 UTC
DescriptionMemory corruption while processing a packet with a size close to the maximum allowed value.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

EPSS: 0.001100000 probability, percentile 0.014780000 (date 2026-08-05)

Problem Types: CWE-190 | CWE-190 CWE-190 Integer Overflow or Wraparound

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Qualcomm Lemansau - All All All
Operating System Qualcomm Lemansau Firmware - All All All
Hardware Qualcomm Lemans Au Lgit - All All All
Operating System Qualcomm Lemans Au Lgit Firmware - All All All
Hardware Qualcomm Qam8255p - All All All
Operating System Qualcomm Qam8255p Firmware - All All All
Hardware Qualcomm Qam8295p - All All All
Operating System Qualcomm Qam8295p Firmware - All All All
Hardware Qualcomm Qam8620p - All All All
Operating System Qualcomm Qam8620p Firmware - All All All
Hardware Qualcomm Qamsrv1h - All All All
Operating System Qualcomm Qamsrv1h Firmware - All All All
Hardware Qualcomm Qamsrv1m - All All All
Operating System Qualcomm Qamsrv1m Firmware - All All All
Hardware Qualcomm Qca6574au - All All All
Operating System Qualcomm Qca6574au Firmware - All All All
Hardware Qualcomm Qca6595 - All All All
Hardware Qualcomm Qca6595au - All All All
Operating System Qualcomm Qca6595au Firmware - All All All
Operating System Qualcomm Qca6595 Firmware - All All All
Hardware Qualcomm Qca6688aq - All All All
Operating System Qualcomm Qca6688aq Firmware - All All All
Hardware Qualcomm Qca6696 - All All All
Operating System Qualcomm Qca6696 Firmware - All All All
Hardware Qualcomm Qca6698aq - All All All
Operating System Qualcomm Qca6698aq Firmware - All All All
Hardware Qualcomm Qca6797aq - All All All
Operating System Qualcomm Qca6797aq Firmware - All All All
Hardware Qualcomm Qca8695au - All All All
Operating System Qualcomm Qca8695au Firmware - All All All
Hardware Qualcomm Sa6145p - All All All
Operating System Qualcomm Sa6145p Firmware - All All All
Hardware Qualcomm Sa6150p - All All All
Operating System Qualcomm Sa6150p Firmware - All All All
Hardware Qualcomm Sa6155p - All All All
Operating System Qualcomm Sa6155p Firmware - All All All
Hardware Qualcomm Sa7255p - All All All
Operating System Qualcomm Sa7255p Firmware - All All All
Hardware Qualcomm Sa7775p - All All All
Operating System Qualcomm Sa7775p Firmware - All All All
Hardware Qualcomm Sa8145p - All All All
Operating System Qualcomm Sa8145p Firmware - All All All
Hardware Qualcomm Sa8150p - All All All
Operating System Qualcomm Sa8150p Firmware - All All All
Hardware Qualcomm Sa8155p - All All All
Operating System Qualcomm Sa8155p Firmware - All All All
Hardware Qualcomm Sa8195p - All All All
Operating System Qualcomm Sa8195p Firmware - All All All
Hardware Qualcomm Sa8255p - All All All
Operating System Qualcomm Sa8255p Firmware - All All All
Hardware Qualcomm Sa8295p - All All All
Operating System Qualcomm Sa8295p Firmware - All All All
Hardware Qualcomm Sa8540p - All All All
Operating System Qualcomm Sa8540p Firmware - All All All
Hardware Qualcomm Sa8620p - All All All
Operating System Qualcomm Sa8620p Firmware - All All All
Hardware Qualcomm Sa8770p - All All All
Operating System Qualcomm Sa8770p Firmware - All All All
Hardware Qualcomm Sa9000p - All All All
Operating System Qualcomm Sa9000p Firmware - All All All
Hardware Qualcomm Srv1h - All All All
Operating System Qualcomm Srv1h Firmware - All All All
Hardware Qualcomm Srv1l - All All All
Operating System Qualcomm Srv1l Firmware - All All All
Hardware Qualcomm Srv1m - All All All
Operating System Qualcomm Srv1m Firmware - All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Qualcomm Inc. Snapdragon affected LeMans_AU_LGIT Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected LeMansAU Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected QAM8255P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected QAM8295P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected QAM8620P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected QAMSRV1H Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected QAMSRV1M Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected QCA6574AU Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected QCA6595 Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected QCA6595AU Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected QCA6688AQ Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected QCA6696 Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected QCA6698AQ Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected QCA6797AQ Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected QCA8695AU Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SA6145P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SA6150P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SA6155P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SA7255P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SA7775P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SA8145P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SA8150P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SA8155P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SA8195P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SA8255P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SA8295P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SA8540P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SA8620P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SA8770P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SA9000P Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SRV1H Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SRV1L Snapdragon Auto
CNA Qualcomm Inc. Snapdragon affected SRV1M Snapdragon Auto

References

ReferenceSourceLinkTags
docs.qualcomm.com/product/publicresources/securitybulletin/august-2026-bulletin... [email protected] docs.qualcomm.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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