CVE-2024-21456Network attack vector

Memory disclosure via beacon-frame buffer over-read

Published Jul 1, 2024 · Updated Aug 1, 2024

Buffer over-read in Qualcomm Snapdragon WLAN HOST firmware allows remote attackers to disclose memory by sending a crafted beacon frame. Qualcomm identifies STA beacon-frame parsing as the affected locus but does not disclose the exact unchecked field or read operation. The target must be operating in STA mode and receive the frame; the documented consequences are memory disclosure and a service interruption.

CVSS severity6.5
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Buffer over-read in Qualcomm Snapdragon WLAN HOST firmware allows remote attackers to disclose memory by sending a crafted beacon frame. Qualcomm identifies STA beacon-frame parsing as the affected locus but does not disclose the exact unchecked field or read operation. The target must be operating in STA mode and receive the frame; the documented consequences are memory disclosure and a service interruption.

The record

CVE
CVE-2024-21456
Published
Jul 1, 2024
Updated
Aug 1, 2024
Vendor
Qualcomm
Product
SA9000P Firmware
Classifications
CWE-126
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record 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.

  1. Affected versionversion=0 <=*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qualcomm · SA9000P Firmwareversion=0 <=*
Qualcomm · QCA6698AQ Firmwareversion=0 <=*
Qualcomm · QAM8255P Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6595AU Firmwareversion=0 <=*
Qualcomm · QCN6274 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6678AQ Firmwareversion=0 <=*
Qualcomm · SA8770P Firmwareversion=0 <=*
Qualcomm · Snapdragon X72 5G Modem-RF System Firmwareversion=0 <=*
Qualcomm · SA8620P Firmwareversion=0 <=*
Qualcomm · QAMSRV1M Firmwareversion=0 <=*
Qualcomm · SRV1M Firmwareversion=0 <=*
Qualcomm · QCA8337 Firmwareversion=0 <=*
Qualcomm · QCA8081 Firmwareversion=0 <=*
Qualcomm · FastConnect 7800 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6595 Firmwareversion=0 <=*
Qualcomm · QAM8650P Firmwareversion=0 <=*
Qualcomm · SA7775P Firmwareversion=0 <=*
Qualcomm · SA8775P Firmwareversion=0 <=*
Qualcomm · Snapdragonversion=AR8035; version=FastConnect 7800; version=QAM8255P; version=QAM8620P; version=QAM8650P; version=QAM8775P; version=QAMSRV1H; version=QAMSRV1M; version=QCA6554A; version=QCA6564AU; version=QCA6574; version=QCA6574A; version=QCA6574AU; version=QCA6584AU; version=QCA6595; version=QCA6595AU; version=QCA6678AQ; version=QCA6696; version=QCA6698AQ; version=QCA8081; version=QCA8337; version=QCC2073; version=QCC2076; version=QCC710; version=QCN6224; version=QCN6274; version=QFW7114; version=QFW7124; version=SA7255P; version=SA7775P; version=SA8255P; version=SA8620P; version=SA8650P; version=SA8770P; version=SA8775P; version=SA9000P; version=Snapdragon Auto 5G Modem-RF Gen 2; version=Snapdragon X72 5G Modem-RF System; version=Snapdragon X75 5G Modem-RF System; version=SRV1H; version=SRV1L; version=SRV1M; version=WCD9340
Qualcomm · QCC2076 Firmwareversion=0 <=*
Qualcomm · SA8255P Firmwareversion=0 <=*
Qualcomm · QCA6554A Firmwareversion=0 <=*
Qualcomm · QFW7124 Firmwareversion=0 <=*
Qualcomm · QCN6224 Firmwareversion=0 <=*
Qualcomm · QAMSRV1H Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6564AU Firmwareversion=0 <=*
Qualcomm · SA7255P Firmwareversion=0 <=*
Qualcomm · QCA6574AU Firmwareversion=0 <=*
Qualcomm · QCA6584AU Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6574A Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6574 Firmwareversion=0 <=*
Qualcomm · Snapdragon Auto 5G Modem-RF Gen 2 Firmwareversion=0 <=*
Qualcomm · QAM8620P Firmwareversion=0 <=*
Qualcomm · AR8035 Firmwareversion=0 <=*
Qualcomm · QCC710 Firmwareversion=0 <=*
Qualcomm · QAM8775P Firmwareversion=0 <=*
Qualcomm · WCD9340 Firmwareversion=0 <=*
Qualcomm · SA8650P Firmwareversion=0 <=*
Qualcomm · SRV1H Firmwareversion=0 <=*
Qualcomm · Snapdragon X75 5G Modem-RF System Firmwareversion=0 <=*
Qualcomm · QCA6696 Firmwareversion=0 <=*
Qualcomm · SRV1L Firmwareversion=0 <=*
Qualcomm · QCC2073 Firmwareversion=0 <=*
Qualcomm · QFW7114 Firmwareversion=0 <=*

Published CVSS scores

6.5Qualcomm, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-126Buffer Over-read

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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