CVE-2026-21373 - Vulnerability Details - OpenCVE

Memory Corruption when accessing an output buffer without validating its size during IOCTL processing.

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 accessing an output buffer without validating its size during IOCTL processing.
Title		Buffer Over-read in Camera
Weaknesses		CWE-126
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: 2026-04-06T15:33:49.475Z

Updated: 2026-04-07T03:55:50.599Z

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

Link: CVE-2026-21373

Vulnrichment

Updated: 2026-04-06T16:20:52.717Z

NVD

Status : Received

Published: 2026-04-06T16:16:29.933

Modified: 2026-04-06T16:16:29.933

Link: CVE-2026-21373

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-04-07T09:39:21Z

Weaknesses

CWE-126

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"value": "X2000094"}}, {"platform": ["snapdragon_compute", "snapdragon_industrial_iot", "snapdragon_mobile"], "status": "affected", "versions": {"scheme": "generic", "value": "XG101002"}}, {"platform": ["snapdragon_compute", "snapdragon_industrial_iot", "snapdragon_mobile"], "status": "affected", "versions": {"scheme": "generic", "value": "XG101032"}}, {"platform": ["snapdragon_compute", "snapdragon_industrial_iot", "snapdragon_mobile"], "status": "affected", "versions": {"scheme": "generic", "value": "XG101039"}}], "enrichment": {"confidence": 86.0, "confidence_source": "matching", "scores": [{"score": 86.0, "source": "matching"}]}, "original": {"product": "Snapdragon", "source": "cna", "vendor": "Qualcomm, Inc."}, "product": "snapdragon", "vendor": "qualcomm"}], "analysis": {"en": {"generated_at": "2026-04-06T21:23:10.844495+00:00", "value": {"mitigation_remediation": ["Verify if the device uses the Qualcomm Snapdragon camera driver.", "Check Qualcomm\u2019s April\u202f2026 security bulletin for an available patch or firmware update.", "Apply the patch or update firmware when released.", "If no patch is available, restrict camera driver access to trusted applications and monitor for abnormal IOCTL activity.", "Consider disabling the camera function on systems where it is not required as a temporary measure."], "summary": {"action": "Apply Patch", "impact": "Information Disclosure"}, "threat_synthesis": {"affected_systems": "All Qualcomm Snapdragon devices that ship with the affected camera driver are at risk. The advisory does not list specific firmware or hardware revisions, so any device containing the current driver version may be vulnerable. Firmware or kernel maintainers should verify the presence of the driver and assess the need for a patch.", "description_and_impact": "The CVE describes a buffer over\u2011read in the Qualcomm Snapdragon camera driver, occurring during an IOCTL operation when the driver reads from an output buffer without validating its size. This weakness allows an attacker to read memory that should be protected, potentially exposing kernel or driver data. The flaw is classified as CWE\u2011126, a classic buffer over\u2011read.", "risk_and_exploitability": "The CVSS score of 7.8 indicates high severity, and no EPSS score or active exploitation reports are currently available. The likely attack vector is a local user or process that can invoke an IOCTL on the camera device, which typically requires device access and possibly elevated privileges. If exploited, the attacker could exfiltrate sensitive data from memory, leading to confidentiality compromise."}}}}, "created": "2026-04-06T21:32:02.750384+00:00", "updated": "2026-04-07T09:39:21.623978+00:00", "vendors": ["qualcomm", "qualcomm$PRODUCT$snapdragon"]}