CVE-2026-21382 Qualcomm, Inc. CVE debrief

Who should care

Defenders responsible for Qualcomm-based systems, particularly those using affected firmware and hardware components, should assess exposure and apply patches or updates as needed.

Why it matters

CVE-2026-21382 is a high-severity memory corruption vulnerability affecting multiple Qualcomm products. Defenders should assess exposure, prioritize patching, and monitor for unusual activity.

• Potential for system crashes or instability
• Possible data corruption or loss
• Increased risk of exploitation by attackers
• Need for inventory checks and patching of affected components

Technical summary

The vulnerability exists due to improper handling of power management requests with improperly sized input/output buffers, leading to memory corruption. This affects multiple Qualcomm products, including various firmware and hardware components. The issue can lead to potential system crashes or instability, possible data corruption or loss, and increased risk of exploitation by attackers. Defenders should prioritize inventory checks and patching of affected Qualcomm components.

Defensive priority

High priority for inventory checks and patching of affected Qualcomm components

Recommended defensive actions

• Inventory and assess exposure of Qualcomm components
• Apply patches or updates provided by Qualcomm for affected products
• Monitor for any signs of exploitation or unusual activity

Evidence notes

The CVE record and NVD detail page provide information on the vulnerability, including its description, CVSS score, and affected products. A vendor advisory from Qualcomm is also available.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.