CVE-2023-21647Network attack vector

Information disclosure via malformed GATT packet

Published Aug 8, 2023 · Updated Aug 2, 2024

Information disclosure in Qualcomm Snapdragon Bluetooth HOST allows remote authenticated users to read data by sending a crafted GATT packet. The Bluetooth HOST improperly validates a received GATT packet, but Qualcomm has not disclosed the affected parser or the data exposed. Reachability requires low privileges and no user interaction; the reported impact is limited to confidentiality.

CVSS severity6.5
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Qualcomm Snapdragon Bluetooth HOST allows remote authenticated users to read data by sending a crafted GATT packet. The Bluetooth HOST improperly validates a received GATT packet, but Qualcomm has not disclosed the affected parser or the data exposed. Reachability requires low privileges and no user interaction; the reported impact is limited to confidentiality.

The record

CVE
CVE-2023-21647
Published
Aug 8, 2023
Updated
Aug 2, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-20
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 8, 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=QCA6390
  2. Affected versionversion=QCA6391
  3. Affected versionversion=QCA6426
  4. Affected versionversion=QCA6436
  5. Affected versionversion=QCA6574AU
  6. Affected versionversion=QCA6595AU
  7. Affected versionversion=QCA6696
  8. Affected versionversion=QCC5100
  9. Affected versionversion=QCN9074
  10. Affected versionversion=QCS410
  11. Affected versionversion=QCS610
  12. Affected versionversion=SA6145P
  13. Affected versionversion=SA6150P
  14. Affected versionversion=SA6155P
  15. Affected versionversion=SA8145P
  16. Affected versionversion=SA8150P
  17. Affected versionversion=SA8155P
  18. Affected versionversion=SA8195P
  19. Affected versionversion=SD865 5G
  20. Affected versionversion=SD870
  21. Affected versionversion=SD 8 Gen1 5G
  22. Affected versionversion=SDX55M
  23. Affected versionversion=SDXR2 5G
  24. Affected versionversion=SW5100
  25. Affected versionversion=SW5100P
  26. Affected versionversion=WCD9341
  27. Affected versionversion=WCD9370
  28. Affected versionversion=WCD9380
  29. Affected versionversion=WCN3660B
  30. Affected versionversion=WCN3680B
  31. Affected versionversion=WCN3950
  32. Affected versionversion=WCN3980
  33. Affected versionversion=WCN3988
  34. Affected versionversion=WCN6850
  35. Affected versionversion=WCN6851
  36. Affected versionversion=WCN6855
  37. Affected versionversion=WCN6856
  38. Affected versionversion=WCN7850
  39. Affected versionversion=WCN7851
  40. Affected versionversion=WSA8810
  41. Affected versionversion=WSA8815
  42. Affected versionversion=WSA8830
  43. Affected versionversion=WSA8835

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Qualcomm · Snapdragonversion=QCA6390; version=QCA6391; version=QCA6426; version=QCA6436; version=QCA6574AU; version=QCA6595AU; version=QCA6696; version=QCC5100; version=QCN9074; version=QCS410; version=QCS610; version=SA6145P; version=SA6150P; version=SA6155P; version=SA8145P; version=SA8150P; version=SA8155P; version=SA8195P; version=SD865 5G; version=SD870; version=SD 8 Gen1 5G; version=SDX55M; version=SDXR2 5G; version=SW5100; version=SW5100P; version=WCD9341; version=WCD9370; version=WCD9380; version=WCN3660B; version=WCN3680B; version=WCN3950; version=WCN3980; version=WCN3988; version=WCN6850; version=WCN6851; version=WCN6855; version=WCN6856; version=WCN7850; version=WCN7851; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8835

Published CVSS scores

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

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
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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