Wireless service interruption via TID mapping over-read
Published Aug 5, 2024 · Updated Aug 5, 2024
Buffer over-read in Qualcomm WLAN HOST firmware allows remote attackers to interrupt wireless service via crafted TID-to-link mapping elements. The WLAN HOST parser reads beyond the supplied information-element buffer while processing TID-to-link mapping data; Qualcomm has not disclosed the responsible function or exact bounds error. No authentication or user interaction is required, and the documented consequence is a transient service interruption rather than code execution or data exposure.
CVSS severity7.5
HighEPSS probability0.28%
Next 30 days · Sep 16, 2026Known exploitationUnconfirmed
Based on sourced intelligenceHinoki checkNot available
Coverage for this vulnerabilitySummary
What happened
Buffer over-read in Qualcomm WLAN HOST firmware allows remote attackers to interrupt wireless service via crafted TID-to-link mapping elements. The WLAN HOST parser reads beyond the supplied information-element buffer while processing TID-to-link mapping data; Qualcomm has not disclosed the responsible function or exact bounds error. No authentication or user interaction is required, and the documented consequence is a transient service interruption rather than code execution or data exposure.
The record
- CVE
- CVE-2024-33020
- Published
- Aug 5, 2024
- Updated
- Aug 5, 2024
- Vendor
- Qualcomm
- Product
- SA8155P Firmware
- Classifications
- CWE-125, CWE-126, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 5, 2024CVE publishedPublication date reported by the CVE source.
- Aug 5, 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.
- Affected versionversion=0 <=*
What conditions does exploitation require?
Attack vectornetwork
Required privilegesunauthenticated
What is affected?
Qualcomm · SA8155P Firmwareversion=0 <=*
Qualcomm · SA9000P Firmwareversion=0 <=*
Qualcomm · Qualcomm QRB5165N Firmwareversion=0 <=*
Qualcomm · QCS8250 Firmwareversion=0 <=*
Qualcomm · QCA6698AQ Firmwareversion=0 <=*
Qualcomm · QAM8255P Firmwareversion=0 <=*
Qualcomm · WCD9390 Firmwareversion=0 <=*
Qualcomm · Flight RB5 5G Platform Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6595AU Firmwareversion=0 <=*
Qualcomm · Qualcomm WCD9375 Firmwareversion=0 <=*
Qualcomm · Qualcomm Video Collaboration VC5 Platform 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 · Qualcomm SM8550P Firmwareversion=0 <=*
Qualcomm · WSA8810 Firmwareversion=0 <=*
Qualcomm · QCA8337 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6426 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6797AQ Firmwareversion=0 <=*
Qualcomm · QCA8081 Firmwareversion=0 <=*
Qualcomm · FastConnect 7800 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6595 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 8 Gen 3 Mobile Platform Firmwareversion=0 <=*
Qualcomm · QAM8650P Firmwareversion=0 <=*
Qualcomm · QCS7230 Firmwareversion=0 <=*
Qualcomm · SA8195P Firmwareversion=0 <=*
Qualcomm · SA7775P Firmwareversion=0 <=*
Qualcomm · SXR2250P Firmwareversion=0 <=*
Qualcomm · SA8775P Firmwareversion=0 <=*
Qualcomm · QCM6490 Firmwareversion=0 <=*
Qualcomm · Snapdragonversion=AR8035; version=FastConnect 6700; version=FastConnect 6800; version=FastConnect 6900; version=FastConnect 7800; version=Flight RB5 5G Platform; version=QAM8255P; version=QAM8620P; version=QAM8650P; version=QAM8775P; version=QAMSRV1H; version=QAMSRV1M; 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=QCA6688AQ; version=QCA6696; version=QCA6698AQ; version=QCA6797AQ; version=QCA8081; version=QCA8337; version=QCC2073; version=QCC2076; version=QCC710; version=QCM5430; version=QCM6490; version=QCM8550; version=QCN6224; version=QCN6274; version=QCS5430; version=QCS6490; version=QCS7230; version=QCS8250; version=QCS8550; version=QFW7114; version=QFW7124; version=QRB5165N; version=Qualcomm Video Collaboration VC3 Platform; version=Qualcomm Video Collaboration VC5 Platform; version=Robotics RB5 Platform; version=SA6155P; version=SA7255P; version=SA7775P; version=SA8155P; version=SA8195P; version=SA8255P; version=SA8620P; version=SA8650P; version=SA8770P; version=SA8775P; version=SA9000P; version=SD865 5G; version=SM8550P; version=Snapdragon 865 5G Mobile Platform; version=Snapdragon 865+ 5G Mobile Platform (SM8250-AB); version=Snapdragon 870 5G Mobile Platform (SM8250-AC); version=Snapdragon 8 Gen 2 Mobile Platform; version=Snapdragon 8+ Gen 2 Mobile Platform; version=Snapdragon 8 Gen 3 Mobile Platform; version=Snapdragon AR2 Gen 1 Platform; version=Snapdragon Auto 5G Modem-RF Gen 2; version=Snapdragon X55 5G Modem-RF System; version=Snapdragon X72 5G Modem-RF System; version=Snapdragon X75 5G Modem-RF System; version=Snapdragon XR2 5G Platform; version=SRV1H; version=SRV1L; version=SRV1M; version=SSG2115P; version=SSG2125P; version=SXR1230P; version=SXR2130; version=SXR2230P; version=SXR2250P; version=WCD9340; version=WCD9370; version=WCD9375; version=WCD9380; version=WCD9385; version=WCD9390; version=WCD9395; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8832; version=WSA8835; version=WSA8840; version=WSA8845; version=WSA8845H
Qualcomm · SA6155P Firmwareversion=0 <=*
Qualcomm · QCC2076 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 865 5G Mobile Platform Firmwareversion=0 <=*
Qualcomm · WSA8845H Firmwareversion=0 <=*
Qualcomm · SA8255P Firmwareversion=0 <=*
Qualcomm · QCS6490 Firmwareversion=0 <=*
Qualcomm · SXR1230P Firmwareversion=0 <=*
Qualcomm · FastConnect 6700 Firmwareversion=0 <=*
Qualcomm · FastConnect 6900 Firmwareversion=0 <=*
Qualcomm · SSG2125P Firmwareversion=0 <=*
Qualcomm · QCA6554A Firmwareversion=0 <=*
Qualcomm · QCM8550 Firmwareversion=0 <=*
Qualcomm · QCS8550 Firmwareversion=0 <=*
Qualcomm · WCD9370 Firmwareversion=0 <=*
Qualcomm · SSG2115P Firmwareversion=0 <=*
Qualcomm · WSA8845 Firmwareversion=0 <=*
Qualcomm · QFW7124 Firmwareversion=0 <=*
Qualcomm · QCN6224 Firmwareversion=0 <=*
Qualcomm · QCM5430 Firmwareversion=0 <=*
Qualcomm · QCS5430 Firmwareversion=0 <=*
Qualcomm · Snapdragon X55 5G Modem-RF System Firmwareversion=0 <=*
Qualcomm · QAMSRV1H Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6564AU Firmwareversion=0 <=*
Qualcomm · SA7255P Firmwareversion=0 <=*
Qualcomm · WCD9395 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6436 Firmwareversion=0 <=*
Qualcomm · QCA6574AU Firmwareversion=0 <=*
Qualcomm · QCA6584AU Firmwareversion=0 <=*
Qualcomm · QCA6688AQ Firmwareversion=0 <=*
Qualcomm · WCD9380 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6574A Firmwareversion=0 <=*
Qualcomm · WSA8840 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6574 Firmwareversion=0 <=*
Qualcomm · Snapdragon Auto 5G Modem-RF Gen 2 Firmwareversion=0 <=*
Qualcomm · QAM8620P Firmwareversion=0 <=*
Qualcomm · SXR2230P Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon AR2 Gen 1 Platform Firmwareversion=0 <=*
Qualcomm · Qualcomm SD865 5G Firmwareversion=0 <=*
Qualcomm · AR8035 Firmwareversion=0 <=*
Qualcomm · QCC710 Firmwareversion=0 <=*
Qualcomm · QAM8775P Firmwareversion=0 <=*
Qualcomm · WSA8830 Firmwareversion=0 <=*
Qualcomm · QCA6391 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon XR2 5G Platform Firmwareversion=0 <=*
Qualcomm · WCD9385 Firmwareversion=0 <=*
Qualcomm · WCD9340 Firmwareversion=0 <=*
Qualcomm · WSA8835 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 8 Gen 2 Mobile Platform Firmwareversion=0 <=*
Qualcomm · Qualcomm Video Collaboration VC3 Platform Firmwareversion=0 <=*
Qualcomm · SA8650P Firmwareversion=0 <=*
Qualcomm · FastConnect 6800 Firmwareversion=0 <=*
Qualcomm · WSA8832 Firmwareversion=0 <=*
Qualcomm · SXR2130 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 <=*
Qualcomm · WSA8815 Firmwareversion=0 <=*
Qualcomm · Robotics RB5 Platform Firmwareversion=0 <=*
Published CVSS scores
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.
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
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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