CVE-2023-21658Network attack vector

Transient WLAN interruption via management-frame over-read

Published Jun 6, 2023 · Updated Aug 2, 2024

Buffer over-read in Qualcomm Snapdragon WLAN firmware allows remote attackers to interrupt WLAN service via crafted management frames. The firmware reads beyond the available data while processing an untrusted beacon or probe-response frame, producing a transient denial of service. No association, authentication, or user action is required; the published impact is limited to temporary WLAN unavailability.

CVSS severity7.5
High
EPSS probability0.38%
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 firmware allows remote attackers to interrupt WLAN service via crafted management frames. The firmware reads beyond the available data while processing an untrusted beacon or probe-response frame, producing a transient denial of service. No association, authentication, or user action is required; the published impact is limited to temporary WLAN unavailability.

The record

CVE
CVE-2023-21658
Published
Jun 6, 2023
Updated
Aug 2, 2024
Vendor
Qualcomm
Product
QCN6102 Firmware
Classifications
CWE-126, CWE-125, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qualcomm · QCN6102 Firmwareversion=*
Qualcomm · QCN9074 Firmwareversion=*
Qualcomm · QSM8350 Firmwareversion=*
Qualcomm · QCA6698AQ Firmwareversion=*
Qualcomm · QCA8386 Firmwareversion=*
Qualcomm · QAM8255P Firmwareversion=*
Qualcomm · QCA8072 Firmwareversion=*
Qualcomm · QCN9002 Firmwareversion=*
Qualcomm · IPQ6000 Firmwareversion=*
Qualcomm · Qualcomm QCA6595AU Firmwareversion=*
Qualcomm · QCA2064 Firmwareversion=*
Qualcomm · IPQ8078 Firmwareversion=*
Qualcomm · Qualcomm QCA6678AQ Firmwareversion=*
Qualcomm · QCN5052 Firmwareversion=*
Qualcomm · CSR8811 Firmwareversion=*
Qualcomm · Immersive Home 318 Platform Firmwareversion=*
Qualcomm · Snapdragon Auto 5G Modem-RF Firmwareversion=*
Qualcomm · QCA8084 Firmwareversion=*
Qualcomm · QCN6122 Firmwareversion=*
Qualcomm · QCA8337 Firmwareversion=*
Qualcomm · IPQ6010 Firmwareversion=*
Qualcomm · Qualcomm Snapdragon 429 Mobile Platform Firmwareversion=*
Qualcomm · Qualcomm QCA6426 Firmwareversion=*
Qualcomm · Qualcomm QCA6797AQ Firmwareversion=*
Qualcomm · QCA8081 Firmwareversion=*
Qualcomm · IPQ8070A Firmwareversion=*
Qualcomm · FastConnect 7800 Firmwareversion=*
Qualcomm · QCN9001 Firmwareversion=*
Qualcomm · QCA9994 Firmwareversion=*
Qualcomm · Qualcomm QCA6595 Firmwareversion=*
Qualcomm · QCA9886 Firmwareversion=*
Qualcomm · QCM4490 Firmwareversion=*
Qualcomm · IPQ8078A Firmwareversion=*
Qualcomm · QAM8650P Firmwareversion=*
Qualcomm · Qualcomm SD888 Firmwareversion=*
Qualcomm · QCN5022 Firmwareversion=*
Qualcomm · IPQ5028 Firmwareversion=*
Qualcomm · IPQ8174 Firmwareversion=*
Qualcomm · QCN9022 Firmwareversion=*
Qualcomm · Qualcomm IPQ8068 Firmwareversion=*
Qualcomm · IPQ6028 Firmwareversion=*
Qualcomm · QCN9274 Firmwareversion=*
Qualcomm · QCM6490 Firmwareversion=*
Qualcomm · Snapdragonversion=AR8035; version=AR9380; version=CSR8811; version=FastConnect 6700; version=FastConnect 6800; version=FastConnect 6900; version=FastConnect 7800; version=Immersive Home 214 Platform; version=Immersive Home 216 Platform; version=Immersive Home 316 Platform; version=Immersive Home 318 Platform; version=IPQ5010; version=IPQ5028; version=IPQ6000; version=IPQ6010; version=IPQ6018; version=IPQ6028; version=IPQ8064; version=IPQ8065; version=IPQ8068; version=IPQ8070A; version=IPQ8071A; version=IPQ8072A; version=IPQ8074A; version=IPQ8076; version=IPQ8076A; version=IPQ8078; version=IPQ8078A; version=IPQ8173; version=IPQ8174; version=IPQ9008; version=IPQ9574; version=QAM8255P; version=QAM8295P; version=QAM8650P; version=QAM8775P; version=QCA2062; version=QCA2064; version=QCA2065; version=QCA2066; version=QCA4024; version=QCA6391; version=QCA6426; version=QCA6436; version=QCA6554A; version=QCA6564AU; version=QCA6574; version=QCA6574A; version=QCA6574AU; version=QCA6584AU; version=QCA6595; version=QCA6595AU; version=QCA6678AQ; version=QCA6696; version=QCA6698AQ; version=QCA6797AQ; version=QCA8072; version=QCA8075; version=QCA8081; version=QCA8082; version=QCA8084; version=QCA8085; version=QCA8337; version=QCA8386; version=QCA9886; version=QCA9888; version=QCA9889; version=QCA9980; version=QCA9984; version=QCA9985; version=QCA9986; version=QCA9990; version=QCA9992; version=QCA9994; version=QCC2073; version=QCC2076; version=QCM4490; version=QCM6490; version=QCN5022; version=QCN5024; version=QCN5052; version=QCN5054; version=QCN5122; version=QCN5124; version=QCN5152; version=QCN5154; version=QCN5164; version=QCN6023; version=QCN6024; version=QCN6100; version=QCN6102; version=QCN6112; version=QCN6122; version=QCN6132; version=QCN9000; version=QCN9001; version=QCN9002; version=QCN9003; version=QCN9022; version=QCN9024; version=QCN9070; version=QCN9072; version=QCN9074; version=QCN9100; version=QCN9274; version=QCS4490; version=QCS6490; version=QCS8550; version=QSM8350; version=SA8255P; version=SA8295P; version=SD865 5G; version=SD888; version=SD 8 Gen1 5G; version=SDM429W; version=Snapdragon 429 Mobile Platform; version=Snapdragon 780G 5G Mobile Platform; 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 8cx Gen 3 Compute Platform (SC8280XP-AB, BB); version=Snapdragon 8 Gen 1 Mobile Platform; version=Snapdragon 8+ Gen 1 Mobile Platform; version=Snapdragon AR2 Gen 1 Platform; version=Snapdragon Auto 5G Modem-RF; version=Snapdragon X55 5G Modem-RF System; version=Snapdragon X65 5G Modem-RF System; version=Snapdragon XR2 5G Platform; version=SSG2115P; version=SSG2125P; version=SXR1230P; version=SXR2130; version=SXR2230P; version=WCD9370; version=WCD9375; version=WCD9380; version=WCD9385; version=WCN3620; version=WCN3660B; version=WCN3950; version=WCN6740; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8832; version=WSA8835
Qualcomm · QCC2076 Firmwareversion=*
Qualcomm · Qualcomm Snapdragon 865 5G Mobile Platform Firmwareversion=*
Qualcomm · Qualcomm Snapdragon 8 Gen 1 Mobile Platform Firmwareversion=*
Qualcomm · IPQ8071A Firmwareversion=*
Qualcomm · SA8255P Firmwareversion=*
Qualcomm · QCS6490 Firmwareversion=*
Qualcomm · SA8295P Firmwareversion=*
Qualcomm · Qualcomm IPQ8065 Firmwareversion=*
Qualcomm · FastConnect 6700 Firmwareversion=*
Qualcomm · FastConnect 6900 Firmwareversion=*
Qualcomm · QCS4490 Firmwareversion=*
Qualcomm · QCA6554A Firmwareversion=*
Qualcomm · QCA2062 Firmwareversion=*
Qualcomm · QCA9990 Firmwareversion=*
Qualcomm · QCS8550 Firmwareversion=*
Qualcomm · IPQ8076 Firmwareversion=*
Qualcomm · QCA9888 Firmwareversion=*
Qualcomm · SD 8 Gen1 5G Firmwareversion=*
Qualcomm · IPQ8076A Firmwareversion=*
Qualcomm · Immersive Home 214 Platform Firmwareversion=*
Qualcomm · Snapdragon X55 5G Modem-RF System Firmwareversion=*
Qualcomm · IPQ6018 Firmwareversion=*
Qualcomm · Qualcomm QCA6564AU Firmwareversion=*
Qualcomm · QAM8295P Firmwareversion=*
Qualcomm · Qualcomm QCA6436 Firmwareversion=*
Qualcomm · QCA6574AU Firmwareversion=*
Qualcomm · Immersive Home 316 Platform Firmwareversion=*
Qualcomm · AR9380 Firmwareversion=*
Qualcomm · QCN5054 Firmwareversion=*
Qualcomm · QCA9984 Firmwareversion=*
Qualcomm · QCA6584AU Firmwareversion=*
Qualcomm · QCN6112 Firmwareversion=*
Qualcomm · QCA8085 Firmwareversion=*
Qualcomm · Qualcomm QCA6574A Firmwareversion=*
Qualcomm · QCN5152 Firmwareversion=*
Qualcomm · QCN5024 Firmwareversion=*
Qualcomm · Qualcomm QCA6574 Firmwareversion=*
Qualcomm · QCA2065 Firmwareversion=*
Qualcomm · IPQ8173 Firmwareversion=*
Qualcomm · QCA9980 Firmwareversion=*
Qualcomm · QCN6024 Firmwareversion=*
Qualcomm · QCN5164 Firmwareversion=*
Qualcomm · IPQ9574 Firmwareversion=*
Qualcomm · Qualcomm Snapdragon AR2 Gen 1 Platform Firmwareversion=*
Qualcomm · Qualcomm Snapdragon 780G 5G Mobile Platform Firmwareversion=*
Qualcomm · QCN9070 Firmwareversion=*
Qualcomm · Qualcomm SD865 5G Firmwareversion=*
Qualcomm · QCN6132 Firmwareversion=*
Qualcomm · IPQ8074A Firmwareversion=*
Qualcomm · QCA4024 Firmwareversion=*
Qualcomm · AR8035 Firmwareversion=*
Qualcomm · QCA9992 Firmwareversion=*
Qualcomm · Immersive Home 216 Platform Firmwareversion=*
Qualcomm · QCN9100 Firmwareversion=*
Qualcomm · QCN9024 Firmwareversion=*
Qualcomm · QCN9003 Firmwareversion=*
Qualcomm · QCN6100 Firmwareversion=*
Qualcomm · QAM8775P Firmwareversion=*
Qualcomm · QCN9000 Firmwareversion=*
Qualcomm · QCN6023 Firmwareversion=*
Qualcomm · Qualcomm IPQ8064 Firmwareversion=*
Qualcomm · IPQ5010 Firmwareversion=*
Qualcomm · QCA6391 Firmwareversion=*
Qualcomm · QCA9985 Firmwareversion=*
Qualcomm · QCA8075 Firmwareversion=*
Qualcomm · QCA8082 Firmwareversion=*
Qualcomm · IPQ9008 Firmwareversion=*
Qualcomm · QCA9986 Firmwareversion=*
Qualcomm · QCN5154 Firmwareversion=*
Qualcomm · IPQ8072A Firmwareversion=*
Qualcomm · FastConnect 6800 Firmwareversion=*
Qualcomm · QCA2066 Firmwareversion=*
Qualcomm · QCN5122 Firmwareversion=*
Qualcomm · QCA6696 Firmwareversion=*
Qualcomm · QCC2073 Firmwareversion=*
Qualcomm · SDM429W Firmwareversion=*
Qualcomm · QCN5124 Firmwareversion=*
Qualcomm · QCN9072 Firmwareversion=*
Qualcomm · QCA9889 Firmwareversion=*

Published CVSS scores

7.5Qualcomm, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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.

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-126Buffer Over-read
CWE-125Out-of-bounds Read
T1499Endpoint Denial of Service

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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