CVE-2023-43528

Local information disclosure via short ADSP payload

Published May 6, 2024 · Updated Aug 2, 2024

Buffer over-read in Qualcomm Snapdragon Audio components allows local users to disclose memory through a malformed ADSP response. When HLOS receives an Audio Stream Manager matrix-session response whose ADSP payload is shorter than expected, it reads beyond the returned buffer. Exploitation requires local low-privilege access and exposes adjacent memory; Qualcomm also records a limited availability impact.

CVSS severity6.1
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer over-read in Qualcomm Snapdragon Audio components allows local users to disclose memory through a malformed ADSP response. When HLOS receives an Audio Stream Manager matrix-session response whose ADSP payload is shorter than expected, it reads beyond the returned buffer. Exploitation requires local low-privilege access and exposes adjacent memory; Qualcomm also records a limited availability impact.

The record

CVE
CVE-2023-43528
Published
May 6, 2024
Updated
Aug 2, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-125, CWE-126
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 6, 2024CVE 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=AR8035
  2. Affected versionversion=CSRB31024
  3. Affected versionversion=C_V2X_9150
  4. Affected versionversion=C-V2X 9150
  5. Affected versionversion=fastconnect_6800
  6. Affected versionversion=FastConnect 6800
  7. Affected versionversion=fastconnect_6900
  8. Affected versionversion=FastConnect 6900
  9. Affected versionversion=fastconnect_7800
  10. Affected versionversion=FastConnect 7800
  11. Affected versionversion=MSM8996AU
  12. Affected versionversion=QAM8255P
  13. Affected versionversion=QAM8295P
  14. Affected versionversion=QAM8650P
  15. Affected versionversion=QAM8775P
  16. Affected versionversion=QAMSRV1H
  17. Affected versionversion=QAMSRV1M
  18. Affected versionversion=QCA6310
  19. Affected versionversion=QCA6320
  20. Affected versionversion=QCA6391
  21. Affected versionversion=QCA6426
  22. Affected versionversion=QCA6436
  23. Affected versionversion=QCA6564A
  24. Affected versionversion=QCA6564AU
  25. Affected versionversion=QCA6574A
  26. Affected versionversion=QCA6574AU
  27. Affected versionversion=QCA6584AU
  28. Affected versionversion=QCA6595AU
  29. Affected versionversion=QCA6696
  30. Affected versionversion=QCA6698AQ
  31. Affected versionversion=QCA8081
  32. Affected versionversion=QCA8337
  33. Affected versionversion=QCA9367
  34. Affected versionversion=QCA9377
  35. Affected versionversion=QCC710
  36. Affected versionversion=QCN6224
  37. Affected versionversion=QCN6274
  38. Affected versionversion=QCN9074
  39. Affected versionversion=QCS410
  40. Affected versionversion=QCS610
  41. Affected versionversion=QFW7114
  42. Affected versionversion=QFW7124
  43. Affected versionversion=Qualcomm Video Collaboration VC1 Platform
  44. Affected versionversion=Qualcomm Video Collaboration VC3 Platform
  45. Affected versionversion=SA6145P
  46. Affected versionversion=SA6150P
  47. Affected versionversion=SA6155P
  48. Affected versionversion=SA7255P
  49. Affected versionversion=SA8145P
  50. Affected versionversion=SA8150P
  51. Affected versionversion=SA8155P
  52. Affected versionversion=SA8195P
  53. Affected versionversion=SA8255P
  54. Affected versionversion=SA8295P
  55. Affected versionversion=SA8620P
  56. Affected versionversion=SA8650P
  57. Affected versionversion=SA8770P
  58. Affected versionversion=SA8775P
  59. Affected versionversion=SA9000P
  60. Affected versionversion=SD660
  61. Affected versionversion=SD835
  62. Affected versionversion=SD865 5G
  63. Affected versionversion=SDM429W
  64. Affected versionversion=Snapdragon 429 Mobile Platform
  65. Affected versionversion=Snapdragon 660 Mobile Platform
  66. Affected versionversion=Snapdragon 820 Automotive Platform
  67. Affected versionversion=Snapdragon 835 Mobile PC Platform
  68. Affected versionversion=Snapdragon 865 5G Mobile Platform
  69. Affected versionversion=Snapdragon 865+ 5G Mobile Platform (SM8250-AB)
  70. Affected versionversion=Snapdragon 870 5G Mobile Platform (SM8250-AC)
  71. Affected versionversion=snapdragon_auto_4G_modem
  72. Affected versionversion=Snapdragon Auto 4G Modem
  73. Affected versionversion=snapdragon_auto_5g_modem_rf
  74. Affected versionversion=Snapdragon Auto 5G Modem-RF
  75. Affected versionversion=Snapdragon Auto 5G Modem-RF Gen 2
  76. Affected versionversion=Snapdragon Wear 4100+ Platform
  77. Affected versionversion=Snapdragon X55 5G Modem-RF System
  78. Affected versionversion=snapdragon_X72_5g_modem_rf_system
  79. Affected versionversion=Snapdragon X72 5G Modem-RF System
  80. Affected versionversion=Snapdragon X75 5G Modem-RF System
  81. Affected versionversion=snapdragon_X75_5g_modem_system
  82. Affected versionversion=snapdragon_Xr2_5g_platform
  83. Affected versionversion=Snapdragon XR2 5G Platform
  84. Affected versionversion=srv1h
  85. Affected versionversion=SRV1H
  86. Affected versionversion=srv1m
  87. Affected versionversion=SRV1M
  88. Affected versionversion=sxr2130
  89. Affected versionversion=SXR2130
  90. Affected versionversion=wcd9335
  91. Affected versionversion=WCD9335
  92. Affected versionversion=wcd9340
  93. Affected versionversion=WCD9340
  94. Affected versionversion=wcd9341
  95. Affected versionversion=WCD9341
  96. Affected versionversion=wcd9370
  97. Affected versionversion=WCD9370
  98. Affected versionversion=wcd9380
  99. Affected versionversion=WCD9380
  100. Affected versionversion=wcn3610
  101. Affected versionversion=WCN3610
  102. Affected versionversion=wcn3620
  103. Affected versionversion=WCN3620
  104. Affected versionversion=wcn3660b
  105. Affected versionversion=WCN3660B
  106. Affected versionversion=wcn3680b
  107. Affected versionversion=WCN3680B
  108. Affected versionversion=wcn3950
  109. Affected versionversion=WCN3950
  110. Affected versionversion=wcn3980
  111. Affected versionversion=WCN3980
  112. Affected versionversion=wcn3990
  113. Affected versionversion=WCN3990
  114. Affected versionversion=wsa8810
  115. Affected versionversion=WSA8810
  116. Affected versionversion=wsa8815
  117. Affected versionversion=WSA8815

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Qualcomm · Snapdragonversion=AR8035; version=CSRB31024; version=C_V2X_9150; version=C-V2X 9150; version=fastconnect_6800; version=FastConnect 6800; version=fastconnect_6900; version=FastConnect 6900; version=fastconnect_7800; version=FastConnect 7800; version=MSM8996AU; version=QAM8255P; version=QAM8295P; version=QAM8650P; version=QAM8775P; version=QAMSRV1H; version=QAMSRV1M; version=QCA6310; version=QCA6320; version=QCA6391; version=QCA6426; version=QCA6436; version=QCA6564A; version=QCA6564AU; version=QCA6574A; version=QCA6574AU; version=QCA6584AU; version=QCA6595AU; version=QCA6696; version=QCA6698AQ; version=QCA8081; version=QCA8337; version=QCA9367; version=QCA9377; version=QCC710; version=QCN6224; version=QCN6274; version=QCN9074; version=QCS410; version=QCS610; version=QFW7114; version=QFW7124; version=Qualcomm Video Collaboration VC1 Platform; version=Qualcomm Video Collaboration VC3 Platform; version=SA6145P; version=SA6150P; version=SA6155P; version=SA7255P; version=SA8145P; version=SA8150P; version=SA8155P; version=SA8195P; version=SA8255P; version=SA8295P; version=SA8620P; version=SA8650P; version=SA8770P; version=SA8775P; version=SA9000P; version=SD660; version=SD835; version=SD865 5G; version=SDM429W; version=Snapdragon 429 Mobile Platform; version=Snapdragon 660 Mobile Platform; version=Snapdragon 820 Automotive Platform; version=Snapdragon 835 Mobile PC 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_auto_4G_modem; version=Snapdragon Auto 4G Modem; version=snapdragon_auto_5g_modem_rf; version=Snapdragon Auto 5G Modem-RF; version=Snapdragon Auto 5G Modem-RF Gen 2; version=Snapdragon Wear 4100+ Platform; version=Snapdragon X55 5G Modem-RF System; version=snapdragon_X72_5g_modem_rf_system; version=Snapdragon X72 5G Modem-RF System; version=Snapdragon X75 5G Modem-RF System; version=snapdragon_X75_5g_modem_system; version=snapdragon_Xr2_5g_platform; version=Snapdragon XR2 5G Platform; version=srv1h; version=SRV1H; version=srv1m; version=SRV1M; version=sxr2130; version=SXR2130; version=wcd9335; version=WCD9335; version=wcd9340; version=WCD9340; version=wcd9341; version=WCD9341; version=wcd9370; version=WCD9370; version=wcd9380; version=WCD9380; version=wcn3610; version=WCN3610; version=wcn3620; version=WCN3620; version=wcn3660b; version=WCN3660B; version=wcn3680b; version=WCN3680B; version=wcn3950; version=WCN3950; version=wcn3980; version=WCN3980; version=wcn3990; version=WCN3990; version=wsa8810; version=WSA8810; version=wsa8815; version=WSA8815

Published CVSS scores

6.1Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
5.5NIST National Vulnerability DatabaseCVSS:3.1/AV:L/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
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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