CVE-2026-24077

Memory disclosure via channel-switch wrapper out-of-bounds read

Published Aug 4, 2026 · Updated Aug 4, 2026

Integer underflow in Qualcomm Snapdragon WLAN Host allows physically proximate attackers to disclose memory through malformed channel-switch data. The qcacld-3.0 WLAN host processes a channel-switch wrapper information element without rejecting an invalid length, causing an underflow and out-of-bounds read. Exploitation requires no authentication but requires wireless proximity; the reported consequence is memory disclosure without modification or interruption.

CVSS severity6.5
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

Integer underflow in Qualcomm Snapdragon WLAN Host allows physically proximate attackers to disclose memory through malformed channel-switch data. The qcacld-3.0 WLAN host processes a channel-switch wrapper information element without rejecting an invalid length, causing an underflow and out-of-bounds read. Exploitation requires no authentication but requires wireless proximity; the reported consequence is memory disclosure without modification or interruption.

The record

CVE
CVE-2026-24077
Published
Aug 4, 2026
Updated
Aug 4, 2026
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-191
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2026Record 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=AQT1000
  2. Affected versionversion=AR8035
  3. Affected versionversion=CSRA6620
  4. Affected versionversion=CSRA6640
  5. Affected versionversion=FastConnect 6200
  6. Affected versionversion=FastConnect 6700
  7. Affected versionversion=FastConnect 6800
  8. Affected versionversion=FastConnect 6900
  9. Affected versionversion=FastConnect 7800
  10. Affected versionversion=Flight RB5 5G Platform
  11. Affected versionversion=FWA Gen 3 Ultra Platform
  12. Affected versionversion=G1 Gen 1
  13. Affected versionversion=G2 Gen 1
  14. Affected versionversion=Milos
  15. Affected versionversion=Netrani
  16. Affected versionversion=Orne
  17. Affected versionversion=Palawan25
  18. Affected versionversion=QCA6391
  19. Affected versionversion=QCA6420
  20. Affected versionversion=QCA6430
  21. Affected versionversion=QCA6574
  22. Affected versionversion=QCA6574A
  23. Affected versionversion=QCA6574AU
  24. Affected versionversion=QCA6595AU
  25. Affected versionversion=QCA6696
  26. Affected versionversion=QCA6777AQ
  27. Affected versionversion=QCA6787AQ
  28. Affected versionversion=QCA6797AQ
  29. Affected versionversion=QCA8081
  30. Affected versionversion=QCA8337
  31. Affected versionversion=QCC710
  32. Affected versionversion=QCM2290
  33. Affected versionversion=QCM4325
  34. Affected versionversion=QCM4490
  35. Affected versionversion=QCM5430
  36. Affected versionversion=QCM6490
  37. Affected versionversion=QCN6224
  38. Affected versionversion=QCN6274
  39. Affected versionversion=QCN9011
  40. Affected versionversion=QCN9012
  41. Affected versionversion=QCS2290
  42. Affected versionversion=QCS4290
  43. Affected versionversion=QCS4490
  44. Affected versionversion=QFW7114
  45. Affected versionversion=QFW7124
  46. Affected versionversion=QMP1000
  47. Affected versionversion=QRB5165M
  48. Affected versionversion=QRB5165N
  49. Affected versionversion=Qualcomm Video Collaboration VC3 Platform
  50. Affected versionversion=Qualcomm Video Collaboration VC5 Platform
  51. Affected versionversion=Robotics RB2 Platform
  52. Affected versionversion=Robotics RB5 Platform
  53. Affected versionversion=SA6155P
  54. Affected versionversion=SA8155
  55. Affected versionversion=SA8155P
  56. Affected versionversion=SA8195P
  57. Affected versionversion=SD662
  58. Affected versionversion=SD865 5G
  59. Affected versionversion=SD 8 Gen1 5G
  60. Affected versionversion=SM6225P
  61. Affected versionversion=SM6650P
  62. Affected versionversion=SM7325P
  63. Affected versionversion=SM7435
  64. Affected versionversion=SM7635P
  65. Affected versionversion=SM7675
  66. Affected versionversion=SM7675P
  67. Affected versionversion=SM8475P
  68. Affected versionversion=SM8635
  69. Affected versionversion=SM8635P
  70. Affected versionversion=SM8650Q
  71. Affected versionversion=SM8750P
  72. Affected versionversion=Snapdragon 460 Mobile Platform
  73. Affected versionversion=Snapdragon 480 5G Mobile Platform
  74. Affected versionversion=Snapdragon 480+ 5G Mobile Platform
  75. Affected versionversion=Snapdragon 4 Gen 1 Mobile Platform
  76. Affected versionversion=Snapdragon 4 Gen 2 Mobile Platform
  77. Affected versionversion=Snapdragon 662 Mobile Platform
  78. Affected versionversion=Snapdragon 680 4G Mobile Platform
  79. Affected versionversion=Snapdragon 685 4G Mobile Platform
  80. Affected versionversion=Snapdragon 690 5G Mobile Platform
  81. Affected versionversion=Snapdragon 695 5G Mobile Platform
  82. Affected versionversion=Snapdragon 6 Gen 1 Mobile Platform
  83. Affected versionversion=Snapdragon 6 Gen 3 Mobile Platform
  84. Affected versionversion=Snapdragon 6 Gen 4 Mobile Platform
  85. Affected versionversion=Snapdragon 778G 5G Mobile Platform
  86. Affected versionversion=Snapdragon 778G+ 5G Mobile Platform
  87. Affected versionversion=Snapdragon 782G Mobile Platform
  88. Affected versionversion=Snapdragon 7c+ Gen 3 Compute
  89. Affected versionversion=Snapdragon 7 Gen 1 Mobile Platform
  90. Affected versionversion=Snapdragon 7+ Gen 2 Mobile Platform
  91. Affected versionversion=Snapdragon 7s Gen 3 Mobile Platform
  92. Affected versionversion=Snapdragon 865 5G Mobile Platform
  93. Affected versionversion=Snapdragon 865+ 5G Mobile Platform
  94. Affected versionversion=Snapdragon 870 5G Mobile Platform
  95. Affected versionversion=Snapdragon 888 5G Mobile Platform
  96. Affected versionversion=Snapdragon 888+ 5G Mobile Platform
  97. Affected versionversion=Snapdragon 8c Compute Platform "Poipu Lite"
  98. Affected versionversion=Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite"
  99. Affected versionversion=Snapdragon 8cx Compute Platform
  100. Affected versionversion=Snapdragon 8cx Compute Platform "Poipu Pro"
  101. Affected versionversion=Snapdragon 8cx Gen 2 5G Compute Platform
  102. Affected versionversion=Snapdragon 8cx Gen 2 5G Compute Platform "Poipu Pro"
  103. Affected versionversion=Snapdragon 8cx Gen 3 Compute Platform
  104. Affected versionversion=Snapdragon 8 Elite
  105. Affected versionversion=Snapdragon 8 Gen 1 Mobile Platform
  106. Affected versionversion=Snapdragon 8+ Gen 1 Mobile Platform
  107. Affected versionversion=Snapdragon 8 Gen 3 Mobile Platform
  108. Affected versionversion=Snapdragon W5+ Gen 1 Wearable Platform
  109. Affected versionversion=Snapdragon X53 5G Modem-RF System
  110. Affected versionversion=Snapdragon X55 5G Modem-RF System
  111. Affected versionversion=Snapdragon X72 5G Modem-RF System
  112. Affected versionversion=Snapdragon X75 5G Modem-RF System
  113. Affected versionversion=Snapdragon XR2 5G Platform
  114. Affected versionversion=Snapdragon XR2+ Gen 1 Platform
  115. Affected versionversion=SW5100
  116. Affected versionversion=SW5100P
  117. Affected versionversion=WCD9335
  118. Affected versionversion=WCD9340
  119. Affected versionversion=WCD9341
  120. Affected versionversion=WCD9370
  121. Affected versionversion=WCD9375
  122. Affected versionversion=WCD9378
  123. Affected versionversion=WCD9380
  124. Affected versionversion=WCD9385
  125. Affected versionversion=WCD9390
  126. Affected versionversion=WCD9395
  127. Affected versionversion=WCN3910
  128. Affected versionversion=WCN3950
  129. Affected versionversion=WCN3980
  130. Affected versionversion=WCN3988
  131. Affected versionversion=WCN6650
  132. Affected versionversion=WCN6755
  133. Affected versionversion=WCN7860
  134. Affected versionversion=WCN7861
  135. Affected versionversion=WCN7880
  136. Affected versionversion=WCN7881
  137. Affected versionversion=WSA8810
  138. Affected versionversion=WSA8815
  139. Affected versionversion=WSA8830
  140. Affected versionversion=WSA8832
  141. Affected versionversion=WSA8835
  142. Affected versionversion=WSA8840
  143. Affected versionversion=WSA8845
  144. Affected versionversion=WSA8845H

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=AQT1000; version=AR8035; version=CSRA6620; version=CSRA6640; version=FastConnect 6200; version=FastConnect 6700; version=FastConnect 6800; version=FastConnect 6900; version=FastConnect 7800; version=Flight RB5 5G Platform; version=FWA Gen 3 Ultra Platform; version=G1 Gen 1; version=G2 Gen 1; version=Milos; version=Netrani; version=Orne; version=Palawan25; version=QCA6391; version=QCA6420; version=QCA6430; version=QCA6574; version=QCA6574A; version=QCA6574AU; version=QCA6595AU; version=QCA6696; version=QCA6777AQ; version=QCA6787AQ; version=QCA6797AQ; version=QCA8081; version=QCA8337; version=QCC710; version=QCM2290; version=QCM4325; version=QCM4490; version=QCM5430; version=QCM6490; version=QCN6224; version=QCN6274; version=QCN9011; version=QCN9012; version=QCS2290; version=QCS4290; version=QCS4490; version=QFW7114; version=QFW7124; version=QMP1000; version=QRB5165M; version=QRB5165N; version=Qualcomm Video Collaboration VC3 Platform; version=Qualcomm Video Collaboration VC5 Platform; version=Robotics RB2 Platform; version=Robotics RB5 Platform; version=SA6155P; version=SA8155; version=SA8155P; version=SA8195P; version=SD662; version=SD865 5G; version=SD 8 Gen1 5G; version=SM6225P; version=SM6650P; version=SM7325P; version=SM7435; version=SM7635P; version=SM7675; version=SM7675P; version=SM8475P; version=SM8635; version=SM8635P; version=SM8650Q; version=SM8750P; version=Snapdragon 460 Mobile Platform; version=Snapdragon 480 5G Mobile Platform; version=Snapdragon 480+ 5G Mobile Platform; version=Snapdragon 4 Gen 1 Mobile Platform; version=Snapdragon 4 Gen 2 Mobile Platform; version=Snapdragon 662 Mobile Platform; version=Snapdragon 680 4G Mobile Platform; version=Snapdragon 685 4G Mobile Platform; version=Snapdragon 690 5G Mobile Platform; version=Snapdragon 695 5G Mobile Platform; version=Snapdragon 6 Gen 1 Mobile Platform; version=Snapdragon 6 Gen 3 Mobile Platform; version=Snapdragon 6 Gen 4 Mobile Platform; version=Snapdragon 778G 5G Mobile Platform; version=Snapdragon 778G+ 5G Mobile Platform; version=Snapdragon 782G Mobile Platform; version=Snapdragon 7c+ Gen 3 Compute; version=Snapdragon 7 Gen 1 Mobile Platform; version=Snapdragon 7+ Gen 2 Mobile Platform; version=Snapdragon 7s Gen 3 Mobile Platform; version=Snapdragon 865 5G Mobile Platform; version=Snapdragon 865+ 5G Mobile Platform; version=Snapdragon 870 5G Mobile Platform; version=Snapdragon 888 5G Mobile Platform; version=Snapdragon 888+ 5G Mobile Platform; version=Snapdragon 8c Compute Platform "Poipu Lite"; version=Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite"; version=Snapdragon 8cx Compute Platform; version=Snapdragon 8cx Compute Platform "Poipu Pro"; version=Snapdragon 8cx Gen 2 5G Compute Platform; version=Snapdragon 8cx Gen 2 5G Compute Platform "Poipu Pro"; version=Snapdragon 8cx Gen 3 Compute Platform; version=Snapdragon 8 Elite; version=Snapdragon 8 Gen 1 Mobile Platform; version=Snapdragon 8+ Gen 1 Mobile Platform; version=Snapdragon 8 Gen 3 Mobile Platform; version=Snapdragon W5+ Gen 1 Wearable Platform; version=Snapdragon X53 5G Modem-RF System; 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=Snapdragon XR2+ Gen 1 Platform; version=SW5100; version=SW5100P; version=WCD9335; version=WCD9340; version=WCD9341; version=WCD9370; version=WCD9375; version=WCD9378; version=WCD9380; version=WCD9385; version=WCD9390; version=WCD9395; version=WCN3910; version=WCN3950; version=WCN3980; version=WCN3988; version=WCN6650; version=WCN6755; version=WCN7860; version=WCN7861; version=WCN7880; version=WCN7881; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8832; version=WSA8835; version=WSA8840; version=WSA8845; version=WSA8845H

Published CVSS scores

6.5Qualcomm, Inc.CVSS:3.1/AV:A/AC:L/PR:N/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-191Integer Underflow (Wrap or Wraparound)

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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