CVE-2024-21476

Memory corruption via unvalidated channel ID

Published May 6, 2024 · Updated Dec 16, 2025

Memory corruption in Qualcomm Snapdragon secure processor firmware allows local users to corrupt memory through a crafted channel ID. The secure processor accepts a user-supplied channel ID without validating it before using it, causing memory corruption. Local low-privilege access is required; Qualcomm does not disclose whether the corruption causes a crash, code execution, or another concrete effect.

CVSS severity7.8

High

EPSS probability0.13%

Next 30 days · Sep 16, 2026

Known exploitationUnconfirmed

Based on sourced intelligence

Hinoki checkNot available

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Summary

What happened

The record

CVE: CVE-2024-21476
Published: May 6, 2024
Updated: Dec 16, 2025

Vendor: Qualcomm
Product: Qualcomm QCA6431 Firmware
Classifications: CWE-20

Attack vector: local
Privileges: authenticated

Timeline

How it unfolded

May 6, 2024CVE publishedPublication date reported by the CVE source.
Dec 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

Affected versionversion=-

What conditions does exploitation require?

Attack vectorlocal

Required privilegesauthenticated

What is affected?

Qualcomm · Qualcomm QCA6431 Firmwareversion=-

Qualcomm · QCA1062 Firmwareversion=-

Qualcomm · WSA8810 Firmwareversion=-

Qualcomm · QCA8337 Firmwareversion=-

Qualcomm · Qualcomm QCA6426 Firmwareversion=-

Qualcomm · FastConnect 7800 Firmwareversion=-

Qualcomm · SC8380XP Firmwareversion=-

Qualcomm · Snapdragonversion=AQT1000; version=AR8035; version=FastConnect 6200; version=FastConnect 6800; version=FastConnect 6900; version=FastConnect 7800; version=QCA1062; version=QCA1064; version=QCA6391; version=QCA6420; version=QCA6421; version=QCA6426; version=QCA6430; version=QCA6431; version=QCA6436; version=QCA8337; version=QSM8250; version=SC8180X+SDX55; version=SC8380XP; version=SD865 5G; version=SDX55; version=Snapdragon 865 5G Mobile Platform; version=Snapdragon 865+ 5G Mobile Platform (SM8250-AB); version=Snapdragon 870 5G Mobile Platform (SM8250-AC); version=Snapdragon 888 5G Mobile Platform; version=Snapdragon 888+ 5G Mobile Platform (SM8350-AC); version=Snapdragon 8c Compute Platform (SC8180X-AD) "Poipu Lite"; version=Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite"; version=Snapdragon 8cx Compute Platform (SC8180X-AA, AB); version=Snapdragon 8cx Compute Platform (SC8180XP-AC, AF) "Poipu Pro"; version=Snapdragon 8cx Gen 2 5G Compute Platform (SC8180X-AC, AF) "Poipu Pro"; version=Snapdragon 8cx Gen 2 5G Compute Platform (SC8180XP-AA, AB); version=Snapdragon 8cx Gen 3 Compute Platform (SC8280XP-AB, BB); version=Snapdragon X55 5G Modem-RF System; version=Snapdragon XR2 5G Platform; version=Snapdragon XR2+ Gen 1 Platform; version=SXR2130; version=WCD9340; version=WCD9341; version=WCD9380; version=WCD9385; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8835; version=WSA8840; version=WSA8845; version=WSA8845H

Qualcomm · Qualcomm Snapdragon 8cx Firmwareversion=-

Qualcomm · Qualcomm Snapdragon 865 5G Mobile Platform Firmwareversion=-

Qualcomm · QCA1064 Firmwareversion=-

Qualcomm · WSA8845H Firmwareversion=-

Qualcomm · QCA6421 Firmwareversion=-

Qualcomm · SC8180X Firmwareversion=-

Qualcomm · FastConnect 6900 Firmwareversion=-

Qualcomm · QCA6420 Firmwareversion=-

Qualcomm · WSA8845 Firmwareversion=-

Qualcomm · Qualcomm WCD9341 Firmwareversion=-

Qualcomm · Snapdragon X55 5G Modem-RF System Firmwareversion=-

Qualcomm · Qualcomm QCA6436 Firmwareversion=-

Qualcomm · WCD9380 Firmwareversion=-

Qualcomm · QSM8250 Firmwareversion=-

Qualcomm · WSA8840 Firmwareversion=-

Qualcomm · Qualcomm QCA6430 Firmwareversion=-

Qualcomm · Qualcomm SD865 5G Firmwareversion=-

Qualcomm · FastConnect 6200 Firmwareversion=-

Qualcomm · AR8035 Firmwareversion=-

Qualcomm · Qualcomm Snapdragon 870 5G Mobile Platform Firmwareversion=-

Qualcomm · AQT1000 Firmwareversion=-

Qualcomm · Qualcomm SDX55 Firmwareversion=-

Qualcomm · WSA8830 Firmwareversion=-

Qualcomm · Qualcomm Snapdragon 888+ 5G Mobile Platform Firmwareversion=-

Qualcomm · QCA6391 Firmwareversion=-

Qualcomm · Qualcomm Snapdragon XR2 5G Platform Firmwareversion=-

Qualcomm · WCD9385 Firmwareversion=-

Qualcomm · WCD9340 Firmwareversion=-

Qualcomm · WSA8835 Firmwareversion=-

Qualcomm · FastConnect 6800 Firmwareversion=-

Qualcomm · SXR2130 Firmwareversion=-

Qualcomm · WSA8815 Firmwareversion=-

Published CVSS scores

7.8Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026

Latest reporting daySep 16, 2026

Latest daily unique IPsUnavailable

Prior 30-day averageUnavailable

SourceShadowserver honeypots (KEV)

Vectorlocal

Privilegesauthenticated

Known exploitationUnconfirmed

Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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