CVE-2026-21372 - Vulnerability Details - OpenCVE

Memory Corruption when sending IOCTL requests with invalid buffer sizes during memcpy operations.

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.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Qualcomm Subscribe	Snapdragon Subscribe

No data.

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/april-2026-bulletin.html

History

Tue, 07 Apr 2026 09:45:00 +0000

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

Mon, 06 Apr 2026 18:00:00 +0000

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

Mon, 06 Apr 2026 16:45:00 +0000

Type	Values Removed	Values Added
Description		Memory Corruption when sending IOCTL requests with invalid buffer sizes during memcpy operations.
Title		Heap-Based Buffer Overflow in Power Management IC
Weaknesses		CWE-122
References		https://docs.qualcomm.com/product/publicresources/securitybulletin/april-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: 2026-04-06T15:33:48.447Z

Updated: 2026-04-07T03:55:49.327Z

Reserved: 2025-12-17T04:35:45.742Z

Link: CVE-2026-21372

Vulnrichment

Updated: 2026-04-06T16:21:05.474Z

NVD

Status : Received

Published: 2026-04-06T16:16:29.767

Modified: 2026-04-06T16:16:29.767

Link: CVE-2026-21372

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-04-07T09:39:22Z

Weaknesses

CWE-122

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{"product": "Snapdragon", "source": "cna", "vendor": "Qualcomm, Inc."}, "product": "snapdragon", "vendor": "qualcomm"}], "analysis": {"en": {"generated_at": "2026-04-06T20:21:09.116442+00:00", "value": {"mitigation_remediation": ["Apply the vendor\u2011provided patch or firmware update as soon as it becomes available.", "Consult Qualcomm security bulletins and the vendor website for the latest update information.", "Restrict access to the Power Management driver with appropriate permissions or role\u2011based controls.", "If the power\u2011management IOCTL interfaces are not required, disable or block them.", "Keep all firmware and software components current and monitor vendor advisories for further guidance."], "summary": {"action": "Apply Patch", "impact": "Memory Corruption"}, "threat_synthesis": {"affected_systems": "Qualcomm Snapdragon products are affected. No specific firmware or driver version range is listed, indicating that current releases may contain the vulnerability until an update is issued.", "description_and_impact": "A heap-based buffer overflow exists in the Power Management IC driver used in Qualcomm Snapdragon devices. The flaw is triggered when an IOCTL request supplies an oversized buffer during a memcpy operation, causing memory corruption. If an attacker can trigger this overflow, they could crash the driver or influence data structures, potentially leading to denial of service or privilege elevation.", "risk_and_exploitability": "The vulnerability scores 7.8 on the CVSS scale, indicating high severity. Exploitability data is unavailable, but the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. Attack requires local access to the driver to send crafted IOCTL requests; thus an attacker with local privileges could exploit it."}}}}, "created": "2026-04-06T21:32:03.860885+00:00", "updated": "2026-04-07T09:39:22.701724+00:00", "vendors": ["qualcomm", "qualcomm$PRODUCT$snapdragon"]}