CVE-2026-21375

| EUVD-2026-19330 HIGH
2026-04-06 qualcomm GHSA-x4r2-qwg8-443r
7.8
CVSS 3.1
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CVSS Vector

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
Analysis Generated
Apr 06, 2026 - 16:00 vuln.today
EUVD ID Assigned
Apr 06, 2026 - 16:00 euvd
EUVD-2026-19330
CVE Published
Apr 06, 2026 - 15:33 nvd
HIGH 7.8

Tags

Buffer Overflow

Description

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

Analysis

Memory corruption in Qualcomm Snapdragon chipsets allows authenticated local attackers with low privileges to execute arbitrary code, elevate privileges, or cause system crashes through improper IOCTL buffer validation. The vulnerability achieves complete compromise of confidentiality, integrity, and availability (CVSS 7.8 HIGH). …

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Remediation

Within 24 hours: Identify and inventory all Snapdragon-based devices in your environment (mobile devices, IoT platforms, automotive systems). Within 7 days: Contact Qualcomm and your device OEM (Samsung, Google, Qualcomm reference designs, etc.) to confirm patch availability for your specific device models and expected deployment timeline. …

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Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +39
POC: 0

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CVE-2026-21375 vulnerability details – vuln.today
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