CVE-2026-21366 - Vulnerability Details

Memory corruption while processing a packet with a size close to the maximum allowed value.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0007.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Qualcomm Subscribe	Lemans Au Lgit Subscribe Lemans Au Lgit Firmware Subscribe Lemansau Subscribe Lemansau Firmware Subscribe Qam8255p Subscribe Qam8255p Firmware Subscribe Qam8295p Subscribe Qam8295p Firmware Subscribe Qam8620p Subscribe Qam8620p Firmware Subscribe Qamsrv1h Subscribe Qamsrv1h Firmware Subscribe Qamsrv1m Subscribe Qamsrv1m Firmware Subscribe Qca6574au Subscribe Qca6574au Firmware Subscribe Qca6595 Subscribe Qca6595 Firmware Subscribe Qca6595au Subscribe Qca6595au Firmware Subscribe Qca6688aq Subscribe Qca6688aq Firmware Subscribe Qca6696 Subscribe Qca6696 Firmware Subscribe Qca6698aq Subscribe Qca6698aq Firmware Subscribe Qca6797aq Subscribe Qca6797aq Firmware Subscribe Qca8695au Subscribe Qca8695au Firmware Subscribe Sa6145p Subscribe Sa6145p Firmware Subscribe Sa6150p Subscribe Sa6150p Firmware Subscribe Sa6155p Subscribe Sa6155p Firmware Subscribe Sa7255p Subscribe Sa7255p Firmware Subscribe Sa7775p Subscribe Sa7775p Firmware Subscribe Sa8145p Subscribe Sa8145p Firmware Subscribe Sa8150p Subscribe Sa8150p Firmware Subscribe Sa8155p Subscribe Sa8155p Firmware Subscribe Sa8195p Subscribe Sa8195p Firmware Subscribe Sa8255p Subscribe Sa8255p Firmware Subscribe Sa8295p Subscribe Sa8295p Firmware Subscribe Sa8540p Subscribe Sa8540p Firmware Subscribe Sa8620p Subscribe Sa8620p Firmware Subscribe Sa8770p Subscribe Sa8770p Firmware Subscribe Sa9000p Subscribe Sa9000p Firmware Subscribe Snapdragon Subscribe Srv1h Subscribe Srv1h Firmware Subscribe Srv1l Subscribe Srv1l Firmware Subscribe Srv1m Subscribe Srv1m Firmware Subscribe

Configuration 1 [-]

AND

cpe:2.3:o:qualcomm:lemans_au_lgit_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:lemans_au_lgit:-:*:*:*:*:*:*:*

Configuration 2 [-]

AND

cpe:2.3:o:qualcomm:lemansau_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:lemansau:-:*:*:*:*:*:*:*

Configuration 3 [-]

AND

cpe:2.3:o:qualcomm:qam8255p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:qam8255p:-:*:*:*:*:*:*:*

Configuration 4 [-]

AND

cpe:2.3:o:qualcomm:qam8295p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:qam8295p:-:*:*:*:*:*:*:*

Configuration 5 [-]

AND

cpe:2.3:o:qualcomm:qam8620p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:qam8620p:-:*:*:*:*:*:*:*

Configuration 6 [-]

AND

cpe:2.3:o:qualcomm:qamsrv1h_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:qamsrv1h:-:*:*:*:*:*:*:*

Configuration 7 [-]

AND

cpe:2.3:o:qualcomm:qamsrv1m_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:qamsrv1m:-:*:*:*:*:*:*:*

Configuration 8 [-]

AND

cpe:2.3:o:qualcomm:qca6574au_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:qca6574au:-:*:*:*:*:*:*:*

Configuration 9 [-]

AND

cpe:2.3:o:qualcomm:qca6595_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:qca6595:-:*:*:*:*:*:*:*

Configuration 10 [-]

AND

cpe:2.3:o:qualcomm:qca6595au_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:qca6595au:-:*:*:*:*:*:*:*

Configuration 11 [-]

AND

cpe:2.3:o:qualcomm:qca6688aq_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:qca6688aq:-:*:*:*:*:*:*:*

Configuration 12 [-]

AND

cpe:2.3:o:qualcomm:qca6696_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:qca6696:-:*:*:*:*:*:*:*

Configuration 13 [-]

AND

cpe:2.3:o:qualcomm:qca6698aq_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:qca6698aq:-:*:*:*:*:*:*:*

Configuration 14 [-]

AND

cpe:2.3:o:qualcomm:qca6797aq_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:qca6797aq:-:*:*:*:*:*:*:*

Configuration 15 [-]

AND

cpe:2.3:o:qualcomm:qca8695au_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:qca8695au:-:*:*:*:*:*:*:*

Configuration 16 [-]

AND

cpe:2.3:o:qualcomm:sa6145p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:sa6145p:-:*:*:*:*:*:*:*

Configuration 17 [-]

AND

cpe:2.3:o:qualcomm:sa6150p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:sa6150p:-:*:*:*:*:*:*:*

Configuration 18 [-]

AND

cpe:2.3:o:qualcomm:sa6155p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:sa6155p:-:*:*:*:*:*:*:*

Configuration 19 [-]

AND

cpe:2.3:o:qualcomm:sa7255p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:sa7255p:-:*:*:*:*:*:*:*

Configuration 20 [-]

AND

cpe:2.3:o:qualcomm:sa7775p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:sa7775p:-:*:*:*:*:*:*:*

Configuration 21 [-]

AND

cpe:2.3:o:qualcomm:sa8145p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:sa8145p:-:*:*:*:*:*:*:*

Configuration 22 [-]

AND

cpe:2.3:o:qualcomm:sa8150p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:sa8150p:-:*:*:*:*:*:*:*

Configuration 23 [-]

AND

cpe:2.3:o:qualcomm:sa8155p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:sa8155p:-:*:*:*:*:*:*:*

Configuration 24 [-]

AND

cpe:2.3:o:qualcomm:sa8195p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:sa8195p:-:*:*:*:*:*:*:*

Configuration 25 [-]

AND

cpe:2.3:o:qualcomm:sa8255p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:sa8255p:-:*:*:*:*:*:*:*

Configuration 26 [-]

AND

cpe:2.3:o:qualcomm:sa8295p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:sa8295p:-:*:*:*:*:*:*:*

Configuration 27 [-]

AND

cpe:2.3:o:qualcomm:sa8540p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:sa8540p:-:*:*:*:*:*:*:*

Configuration 28 [-]

AND

cpe:2.3:o:qualcomm:sa8620p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:sa8620p:-:*:*:*:*:*:*:*

Configuration 29 [-]

AND

cpe:2.3:o:qualcomm:sa8770p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:sa8770p:-:*:*:*:*:*:*:*

Configuration 30 [-]

AND

cpe:2.3:o:qualcomm:sa9000p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:sa9000p:-:*:*:*:*:*:*:*

Configuration 31 [-]

AND

cpe:2.3:o:qualcomm:srv1h_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:srv1h:-:*:*:*:*:*:*:*

Configuration 32 [-]

AND

cpe:2.3:o:qualcomm:srv1l_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:srv1l:-:*:*:*:*:*:*:*

Configuration 33 [-]

AND

cpe:2.3:o:qualcomm:srv1m_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:qualcomm:srv1m:-:*:*:*:*:*:*:*

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products
Qualcomm Subscribe	Snapdragon Subscribe

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://docs.qualcomm.com/product/publicresources/securitybulletin/august-2026-bulletin.html

History

Tue, 04 Aug 2026 17:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Qualcomm Qualcomm snapdragon
Vendors & Products		Qualcomm Qualcomm snapdragon

Tue, 04 Aug 2026 16:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Tue, 04 Aug 2026 15:45:00 +0000

Type	Values Removed	Values Added
Description		Memory corruption while processing a packet with a size close to the maximum allowed value.
Title		Integer Overflow or Wraparound in Data Network Stack & Connectivity
Weaknesses		CWE-190
References		https://docs.qualcomm.com/product/publicresources/securitybulletin/august-2026-bulletin.html
Metrics		cvssV3_1 `{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: qualcomm

Published: 2026-08-04T15:07:12.360Z

Updated: 2026-08-05T03:56:25.168Z

Reserved: 2025-12-17T04:35:45.741Z

Link: CVE-2026-21366

Vulnrichment

Updated: 2026-08-04T16:01:02.155Z

NVD

Status : Analyzed

Published: 2026-08-04T16:16:22.780

Modified: 2026-08-06T18:33:50.390

Link: CVE-2026-21366

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-08-04T20:45:03Z

Weaknesses

CWE-190

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

Projects

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