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Snapdragon CVE-2026-21378

| EUVDEUVD-2026-19334 HIGH
Buffer Over-read (CWE-126)
2026-04-06 qualcomm
7.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
EUVD ID Assigned
Apr 06, 2026 - 16:00 euvd
EUVD-2026-19334
Analysis Generated
Apr 06, 2026 - 16:00 vuln.today
CVE Published
Apr 06, 2026 - 15:33 nvd
HIGH 7.8

DescriptionCVE.org

Memory Corruption when accessing an output buffer without validating its size during IOCTL processing in a camera sensor driver.

AnalysisAI

Local privilege escalation in Qualcomm Snapdragon camera sensor drivers allows authenticated users to execute arbitrary code with elevated privileges through memory corruption. The vulnerability stems from unbounded buffer access during IOCTL processing, enabling attackers to corrupt memory and achieve complete system compromise (confidentiality, integrity, and availability impact). …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Local user issues IOCTL command
Exploit
Insufficient buffer size validation in driver
Execution
Memory corruption occurs
Impact
Arbitrary code execution with elevated privileges

Vulnerability AssessmentAI

Exploitation Attacker requires low-privilege local user access on a system with the vulnerable camera sensor driver installed. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This vulnerability presents moderate-to-high real-world risk despite the 7.8 CVSS score. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker first compromises a target Snapdragon-powered Android device through a malicious application distributed via third-party app stores or social engineering, gaining standard user-level permissions. The malicious application invokes specially crafted IOCTL calls to the camera sensor driver with oversized output buffers, triggering the unbounded memory write during buffer processing. …
Remediation Apply security updates provided by device manufacturers (OEMs) that incorporate fixes from Qualcomm's April 2026 Security Bulletin. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: inventory all Snapdragon-based devices (mobile phones, tablets, IoT endpoints) across your organization and identify affected models through Qualcomm's product security advisories. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-21378 vulnerability details – vuln.today

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