CVE-2023-33056Network attack vector

Transient service interruption via crafted T2LM beacon

Published Nov 7, 2023 · Updated Aug 2, 2024

NULL pointer dereference in Qualcomm Snapdragon WLAN firmware allows remote attackers to interrupt service with a crafted T2LM beacon. The closed-source T2LM information-element handler dereferences a null pointer while processing a received beacon, causing a transient WLAN interruption. No authentication or user interaction is required, but the consequence is limited to temporary loss of availability rather than data access or code execution.

CVSS severity7.5
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in Qualcomm Snapdragon WLAN firmware allows remote attackers to interrupt service with a crafted T2LM beacon. The closed-source T2LM information-element handler dereferences a null pointer while processing a received beacon, causing a transient WLAN interruption. No authentication or user interaction is required, but the consequence is limited to temporary loss of availability rather than data access or code execution.

The record

CVE
CVE-2023-33056
Published
Nov 7, 2023
Updated
Aug 2, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-476, T1498
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 7, 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=AR8035
  2. Affected versionversion=CSR8811
  3. Affected versionversion=FastConnect 6900
  4. Affected versionversion=FastConnect 7800
  5. Affected versionversion=Immersive Home 214 Platform
  6. Affected versionversion=Immersive Home 216 Platform
  7. Affected versionversion=Immersive Home 316 Platform
  8. Affected versionversion=Immersive Home 318 Platform
  9. Affected versionversion=Immersive Home 3210 Platform
  10. Affected versionversion=Immersive Home 326 Platform
  11. Affected versionversion=IPQ5010
  12. Affected versionversion=IPQ5028
  13. Affected versionversion=IPQ5332
  14. Affected versionversion=IPQ6000
  15. Affected versionversion=IPQ6010
  16. Affected versionversion=IPQ6018
  17. Affected versionversion=IPQ6028
  18. Affected versionversion=IPQ8070A
  19. Affected versionversion=IPQ8071A
  20. Affected versionversion=IPQ8072A
  21. Affected versionversion=IPQ8074A
  22. Affected versionversion=IPQ8076
  23. Affected versionversion=IPQ8076A
  24. Affected versionversion=IPQ8078
  25. Affected versionversion=IPQ8078A
  26. Affected versionversion=IPQ8173
  27. Affected versionversion=IPQ8174
  28. Affected versionversion=IPQ9008
  29. Affected versionversion=IPQ9554
  30. Affected versionversion=IPQ9570
  31. Affected versionversion=IPQ9574
  32. Affected versionversion=QAM8255P
  33. Affected versionversion=QAM8650P
  34. Affected versionversion=QAM8775P
  35. Affected versionversion=QCA0000
  36. Affected versionversion=QCA4024
  37. Affected versionversion=QCA6554A
  38. Affected versionversion=QCA6564AU
  39. Affected versionversion=QCA6574
  40. Affected versionversion=QCA6574A
  41. Affected versionversion=QCA6574AU
  42. Affected versionversion=QCA6584AU
  43. Affected versionversion=QCA6595
  44. Affected versionversion=QCA6595AU
  45. Affected versionversion=QCA6696
  46. Affected versionversion=QCA6698AQ
  47. Affected versionversion=QCA6797AQ
  48. Affected versionversion=QCA8075
  49. Affected versionversion=QCA8081
  50. Affected versionversion=QCA8082
  51. Affected versionversion=QCA8084
  52. Affected versionversion=QCA8085
  53. Affected versionversion=QCA8337
  54. Affected versionversion=QCA8386
  55. Affected versionversion=QCA9888
  56. Affected versionversion=QCA9889
  57. Affected versionversion=QCC2073
  58. Affected versionversion=QCC2076
  59. Affected versionversion=QCC710
  60. Affected versionversion=QCF8000
  61. Affected versionversion=QCF8001
  62. Affected versionversion=QCM8550
  63. Affected versionversion=QCN5022
  64. Affected versionversion=QCN5024
  65. Affected versionversion=QCN5052
  66. Affected versionversion=QCN5122
  67. Affected versionversion=QCN5124
  68. Affected versionversion=QCN5152
  69. Affected versionversion=QCN5154
  70. Affected versionversion=QCN5164
  71. Affected versionversion=QCN6023
  72. Affected versionversion=QCN6024
  73. Affected versionversion=QCN6112
  74. Affected versionversion=QCN6122
  75. Affected versionversion=QCN6132
  76. Affected versionversion=QCN6224
  77. Affected versionversion=QCN6274
  78. Affected versionversion=QCN9000
  79. Affected versionversion=QCN9012
  80. Affected versionversion=QCN9013
  81. Affected versionversion=QCN9022
  82. Affected versionversion=QCN9024
  83. Affected versionversion=QCN9070
  84. Affected versionversion=QCN9072
  85. Affected versionversion=QCN9074
  86. Affected versionversion=QCN9100
  87. Affected versionversion=QCN9274
  88. Affected versionversion=QCS8550
  89. Affected versionversion=QFW7114
  90. Affected versionversion=QFW7124
  91. Affected versionversion=SC8380XP
  92. Affected versionversion=SDX55
  93. Affected versionversion=SDX65M
  94. Affected versionversion=SM8550P
  95. Affected versionversion=Snapdragon 8 Gen 2 Mobile Platform
  96. Affected versionversion=Snapdragon 8+ Gen 2 Mobile Platform
  97. Affected versionversion=Snapdragon AR2 Gen 1 Platform
  98. Affected versionversion=Snapdragon X65 5G Modem-RF System
  99. Affected versionversion=Snapdragon X75 5G Modem-RF System
  100. Affected versionversion=SSG2115P
  101. Affected versionversion=SSG2125P
  102. Affected versionversion=SXR1230P
  103. Affected versionversion=SXR2230P
  104. Affected versionversion=WCD9340
  105. Affected versionversion=WCD9380
  106. Affected versionversion=WCD9385
  107. Affected versionversion=WCD9390
  108. Affected versionversion=WCD9395
  109. Affected versionversion=WSA8830
  110. Affected versionversion=WSA8832
  111. Affected versionversion=WSA8835
  112. Affected versionversion=WSA8840
  113. Affected versionversion=WSA8845
  114. Affected versionversion=WSA8845H

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=AR8035; version=CSR8811; version=FastConnect 6900; version=FastConnect 7800; version=Immersive Home 214 Platform; version=Immersive Home 216 Platform; version=Immersive Home 316 Platform; version=Immersive Home 318 Platform; version=Immersive Home 3210 Platform; version=Immersive Home 326 Platform; version=IPQ5010; version=IPQ5028; version=IPQ5332; version=IPQ6000; version=IPQ6010; version=IPQ6018; version=IPQ6028; version=IPQ8070A; version=IPQ8071A; version=IPQ8072A; version=IPQ8074A; version=IPQ8076; version=IPQ8076A; version=IPQ8078; version=IPQ8078A; version=IPQ8173; version=IPQ8174; version=IPQ9008; version=IPQ9554; version=IPQ9570; version=IPQ9574; version=QAM8255P; version=QAM8650P; version=QAM8775P; version=QCA0000; version=QCA4024; version=QCA6554A; version=QCA6564AU; version=QCA6574; version=QCA6574A; version=QCA6574AU; version=QCA6584AU; version=QCA6595; version=QCA6595AU; version=QCA6696; version=QCA6698AQ; version=QCA6797AQ; version=QCA8075; version=QCA8081; version=QCA8082; version=QCA8084; version=QCA8085; version=QCA8337; version=QCA8386; version=QCA9888; version=QCA9889; version=QCC2073; version=QCC2076; version=QCC710; version=QCF8000; version=QCF8001; version=QCM8550; version=QCN5022; version=QCN5024; version=QCN5052; version=QCN5122; version=QCN5124; version=QCN5152; version=QCN5154; version=QCN5164; version=QCN6023; version=QCN6024; version=QCN6112; version=QCN6122; version=QCN6132; version=QCN6224; version=QCN6274; version=QCN9000; version=QCN9012; version=QCN9013; version=QCN9022; version=QCN9024; version=QCN9070; version=QCN9072; version=QCN9074; version=QCN9100; version=QCN9274; version=QCS8550; version=QFW7114; version=QFW7124; version=SC8380XP; version=SDX55; version=SDX65M; version=SM8550P; version=Snapdragon 8 Gen 2 Mobile Platform; version=Snapdragon 8+ Gen 2 Mobile Platform; version=Snapdragon AR2 Gen 1 Platform; version=Snapdragon X65 5G Modem-RF System; version=Snapdragon X75 5G Modem-RF System; version=SSG2115P; version=SSG2125P; version=SXR1230P; version=SXR2230P; version=WCD9340; version=WCD9380; version=WCD9385; version=WCD9390; version=WCD9395; version=WSA8830; version=WSA8832; version=WSA8835; version=WSA8840; version=WSA8845; version=WSA8845H

Published CVSS scores

7.5Qualcomm, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1498Network Denial of Service

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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