CVE-2026-21366
Received Received - Intake

Memory Corruption in Qualcomm Chipset Firmware

Publication date: 2026-08-04

Last updated on: 2026-08-04

Assigner: Qualcomm, Inc.

Description
Memory corruption while processing a packet with a size close to the maximum allowed value.

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Meta Information

Published
2026-08-04
Last Modified
2026-08-04
Generated
2026-08-04
AI Q&A
2026-08-04
EPSS Evaluated
N/A
NVD
CVE-2026-21366
EUVD
EUVD-2026-52728

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-190 The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

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Executive Summary

This is a memory corruption vulnerability that occurs when processing a network packet with a size near the maximum allowed limit. It can lead to unauthorized code execution or system crashes due to improper memory handling.

Impact Analysis

An attacker could exploit this to execute arbitrary code on your system, gain elevated privileges, or cause denial-of-service conditions. It primarily affects systems processing network packets.

Compliance Impact

The vulnerability involves memory corruption from processing oversized packets, which could lead to unauthorized code execution or data exposure. This may impact compliance with GDPR by risking personal data breaches or HIPAA by compromising protected health information if exploited in relevant systems.

Mitigation Strategies

Apply vendor patches or updates if available. Monitor network traffic for unusual packet sizes close to maximum allowed values. Restrict access to vulnerable systems until patched.

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