CVE-2023-21672

Local memory corruption via concurrent tunnel sessions

Published Jul 4, 2023 · Updated Aug 2, 2024

Use-after-free in Qualcomm Snapdragon Audio allows local users to corrupt memory during concurrent tunnel playback or recording sessions. The Audio Graph Manager session_close path mishandles a session object's lifetime, leaving it accessible after release when tunnel sessions overlap. The local trigger requires concurrent tunnel audio activity; successful exploitation can read or modify data or crash the affected device.

CVSS severity8.4
High
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Qualcomm Snapdragon Audio allows local users to corrupt memory during concurrent tunnel playback or recording sessions. The Audio Graph Manager session_close path mishandles a session object's lifetime, leaving it accessible after release when tunnel sessions overlap. The local trigger requires concurrent tunnel audio activity; successful exploitation can read or modify data or crash the affected device.

The record

CVE
CVE-2023-21672
Published
Jul 4, 2023
Updated
Aug 2, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-416
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 4, 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

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Is a vulnerable build present?

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

  1. Affected versionversion=FastConnect 6700
  2. Affected versionversion=FastConnect 6900
  3. Affected versionversion=FastConnect 7800
  4. Affected versionversion=QAM8255P
  5. Affected versionversion=QAM8295P
  6. Affected versionversion=QAM8650P
  7. Affected versionversion=QAM8775P
  8. Affected versionversion=QCA6574
  9. Affected versionversion=QCA6574A
  10. Affected versionversion=QCA6574AU
  11. Affected versionversion=QCA6595
  12. Affected versionversion=QCA6595AU
  13. Affected versionversion=QCA6696
  14. Affected versionversion=QCA6698AQ
  15. Affected versionversion=QCA6797AQ
  16. Affected versionversion=QCM4325
  17. Affected versionversion=SA4150P
  18. Affected versionversion=SA4155P
  19. Affected versionversion=SA6145P
  20. Affected versionversion=SA6150P
  21. Affected versionversion=SA6155P
  22. Affected versionversion=SA8145P
  23. Affected versionversion=SA8150P
  24. Affected versionversion=SA8155P
  25. Affected versionversion=SA8195P
  26. Affected versionversion=SA8255P
  27. Affected versionversion=SA8295P
  28. Affected versionversion=SD865 5G
  29. Affected versionversion=SD 8 Gen1 5G
  30. Affected versionversion=SG4150P
  31. Affected versionversion=Snapdragon 4 Gen 2 Mobile Platform
  32. Affected versionversion=Snapdragon 680 4G Mobile Platform
  33. Affected versionversion=Snapdragon 685 4G Mobile Platform (SM6225-AD)
  34. Affected versionversion=Snapdragon 8 Gen 1 Mobile Platform
  35. Affected versionversion=Snapdragon 8+ Gen 1 Mobile Platform
  36. Affected versionversion=Snapdragon AR2 Gen 1 Platform
  37. Affected versionversion=Snapdragon W5+ Gen 1 Wearable Platform
  38. Affected versionversion=Snapdragon XR2 5G Platform
  39. Affected versionversion=SSG2115P
  40. Affected versionversion=SSG2125P
  41. Affected versionversion=SW5100
  42. Affected versionversion=SW5100P
  43. Affected versionversion=SXR1230P
  44. Affected versionversion=SXR2230P
  45. Affected versionversion=WCD9370
  46. Affected versionversion=WCD9375
  47. Affected versionversion=WCD9380
  48. Affected versionversion=WCD9385
  49. Affected versionversion=WCN3950
  50. Affected versionversion=WCN3980
  51. Affected versionversion=WCN3988
  52. Affected versionversion=WCN6740
  53. Affected versionversion=WSA8810
  54. Affected versionversion=WSA8815
  55. Affected versionversion=WSA8830
  56. Affected versionversion=WSA8832
  57. Affected versionversion=WSA8835

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=FastConnect 6700; version=FastConnect 6900; version=FastConnect 7800; version=QAM8255P; version=QAM8295P; version=QAM8650P; version=QAM8775P; version=QCA6574; version=QCA6574A; version=QCA6574AU; version=QCA6595; version=QCA6595AU; version=QCA6696; version=QCA6698AQ; version=QCA6797AQ; version=QCM4325; version=SA4150P; version=SA4155P; version=SA6145P; version=SA6150P; version=SA6155P; version=SA8145P; version=SA8150P; version=SA8155P; version=SA8195P; version=SA8255P; version=SA8295P; version=SD865 5G; version=SD 8 Gen1 5G; version=SG4150P; version=Snapdragon 4 Gen 2 Mobile Platform; version=Snapdragon 680 4G Mobile Platform; version=Snapdragon 685 4G Mobile Platform (SM6225-AD); version=Snapdragon 8 Gen 1 Mobile Platform; version=Snapdragon 8+ Gen 1 Mobile Platform; version=Snapdragon AR2 Gen 1 Platform; version=Snapdragon W5+ Gen 1 Wearable Platform; version=Snapdragon XR2 5G Platform; version=SSG2115P; version=SSG2125P; version=SW5100; version=SW5100P; version=SXR1230P; version=SXR2230P; version=WCD9370; version=WCD9375; version=WCD9380; version=WCD9385; version=WCN3950; version=WCN3980; version=WCN3988; version=WCN6740; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8832; version=WSA8835

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.4Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:N/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.

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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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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