CVE-2025-21456 - Vulnerability Details - OpenCVE

Memory corruption while processing IOCTL command when multiple threads are called to map/unmap buffer concurrently.

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.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Qualcomm	Snapdragon

No data.

No data.

References

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

History

Thu, 07 Aug 2025 07:15:00 +0000

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

Wed, 06 Aug 2025 20:15:00 +0000

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

Wed, 06 Aug 2025 07:45:00 +0000

Type	Values Removed	Values Added
Description		Memory corruption while processing IOCTL command when multiple threads are called to map/unmap buffer concurrently.
Title		Use After Free in NPU
Weaknesses		CWE-416
References		https://docs.qualcomm.com/product/publicresources/securitybulletin/august-2025-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'}`

MITRE

Status: PUBLISHED

Assigner: qualcomm

Published: 2025-08-06T07:25:49.259Z

Updated: 2025-08-07T03:55:13.267Z

Reserved: 2024-12-18T09:50:08.924Z

Link: CVE-2025-21456

Vulnrichment

Updated: 2025-08-06T19:25:32.116Z

NVD

Status : Awaiting Analysis

Published: 2025-08-06T08:15:26.860

Modified: 2025-08-06T20:23:37.600

Link: CVE-2025-21456

Redhat

No data.

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