CVE-2023-33044Network attack vector

Remote modem service interruption via TLB control messages

Published Dec 5, 2023 · Updated Aug 2, 2024

Reachable assertion in Qualcomm Snapdragon data modems allows remote attackers to interrupt modem service via network TLB control messages. The data-modem TLB control-message handler processes a network message that reaches an assertion and transiently stops modem operation. No authentication or user interaction is required; the documented effect is a transient service interruption, not data disclosure or modification.

CVSS severity7.5
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reachable assertion in Qualcomm Snapdragon data modems allows remote attackers to interrupt modem service via network TLB control messages. The data-modem TLB control-message handler processes a network message that reaches an assertion and transiently stops modem operation. No authentication or user interaction is required; the documented effect is a transient service interruption, not data disclosure or modification.

The record

CVE
CVE-2023-33044
Published
Dec 5, 2023
Updated
Aug 2, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-617, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 5, 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=315 5G IoT Modem
  2. Affected versionversion=AR8035
  3. Affected versionversion=FastConnect 6200
  4. Affected versionversion=FastConnect 6700
  5. Affected versionversion=FastConnect 6800
  6. Affected versionversion=FastConnect 6900
  7. Affected versionversion=FastConnect 7800
  8. Affected versionversion=QCA6391
  9. Affected versionversion=QCA6421
  10. Affected versionversion=QCA6426
  11. Affected versionversion=QCA6431
  12. Affected versionversion=QCA6436
  13. Affected versionversion=QCA6574A
  14. Affected versionversion=QCA6574AU
  15. Affected versionversion=QCA6595AU
  16. Affected versionversion=QCA6696
  17. Affected versionversion=QCA6698AQ
  18. Affected versionversion=QCA8081
  19. Affected versionversion=QCA8337
  20. Affected versionversion=QCM4490
  21. Affected versionversion=QCM6490
  22. Affected versionversion=QCM8550
  23. Affected versionversion=QCN6024
  24. Affected versionversion=QCN9024
  25. Affected versionversion=QCS4490
  26. Affected versionversion=QCS6490
  27. Affected versionversion=QCS8550
  28. Affected versionversion=Qualcomm Video Collaboration VC3 Platform
  29. Affected versionversion=SD855
  30. Affected versionversion=SD865 5G
  31. Affected versionversion=SD888
  32. Affected versionversion=SDX55
  33. Affected versionversion=SDX57M
  34. Affected versionversion=SM7250P
  35. Affected versionversion=SM7315
  36. Affected versionversion=SM7325P
  37. Affected versionversion=SM8550P
  38. Affected versionversion=Snapdragon 480 5G Mobile Platform
  39. Affected versionversion=Snapdragon 480+ 5G Mobile Platform (SM4350-AC)
  40. Affected versionversion=Snapdragon 4 Gen 1 Mobile Platform
  41. Affected versionversion=Snapdragon 4 Gen 2 Mobile Platform
  42. Affected versionversion=Snapdragon 690 5G Mobile Platform
  43. Affected versionversion=Snapdragon 695 5G Mobile Platform
  44. Affected versionversion=Snapdragon 750G 5G Mobile Platform
  45. Affected versionversion=Snapdragon 765 5G Mobile Platform (SM7250-AA)
  46. Affected versionversion=Snapdragon 765G 5G Mobile Platform (SM7250-AB)
  47. Affected versionversion=Snapdragon 768G 5G Mobile Platform (SM7250-AC)
  48. Affected versionversion=Snapdragon 778G 5G Mobile Platform
  49. Affected versionversion=Snapdragon 778G+ 5G Mobile Platform (SM7325-AE)
  50. Affected versionversion=Snapdragon 780G 5G Mobile Platform
  51. Affected versionversion=Snapdragon 782G Mobile Platform (SM7325-AF)
  52. Affected versionversion=Snapdragon 7c+ Gen 3 Compute
  53. Affected versionversion=Snapdragon 855+/860 Mobile Platform (SM8150-AC)
  54. Affected versionversion=Snapdragon 855 Mobile Platform
  55. Affected versionversion=Snapdragon 865 5G Mobile Platform
  56. Affected versionversion=Snapdragon 865+ 5G Mobile Platform (SM8250-AB)
  57. Affected versionversion=Snapdragon 870 5G Mobile Platform (SM8250-AC)
  58. Affected versionversion=Snapdragon 888 5G Mobile Platform
  59. Affected versionversion=Snapdragon 888+ 5G Mobile Platform (SM8350-AC)
  60. Affected versionversion=Snapdragon 8 Gen 1 Mobile Platform
  61. Affected versionversion=Snapdragon 8+ Gen 1 Mobile Platform
  62. Affected versionversion=Snapdragon 8 Gen 2 Mobile Platform
  63. Affected versionversion=Snapdragon 8+ Gen 2 Mobile Platform
  64. Affected versionversion=Snapdragon Auto 5G Modem-RF
  65. Affected versionversion=Snapdragon X55 5G Modem-RF System
  66. Affected versionversion=Snapdragon X65 5G Modem-RF System
  67. Affected versionversion=Snapdragon X70 Modem-RF System
  68. Affected versionversion=Snapdragon XR2 5G Platform
  69. Affected versionversion=SXR2130
  70. Affected versionversion=WCD9341
  71. Affected versionversion=WCD9360
  72. Affected versionversion=WCD9370
  73. Affected versionversion=WCD9375
  74. Affected versionversion=WCD9380
  75. Affected versionversion=WCD9385
  76. Affected versionversion=WCD9390
  77. Affected versionversion=WCD9395
  78. Affected versionversion=WCN3950
  79. Affected versionversion=WCN3988
  80. Affected versionversion=WCN6740
  81. Affected versionversion=WSA8810
  82. Affected versionversion=WSA8815
  83. Affected versionversion=WSA8830
  84. Affected versionversion=WSA8832
  85. Affected versionversion=WSA8835
  86. Affected versionversion=WSA8840
  87. Affected versionversion=WSA8845
  88. Affected versionversion=WSA8845H

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=315 5G IoT Modem; version=AR8035; version=FastConnect 6200; version=FastConnect 6700; version=FastConnect 6800; version=FastConnect 6900; version=FastConnect 7800; version=QCA6391; version=QCA6421; version=QCA6426; version=QCA6431; version=QCA6436; version=QCA6574A; version=QCA6574AU; version=QCA6595AU; version=QCA6696; version=QCA6698AQ; version=QCA8081; version=QCA8337; version=QCM4490; version=QCM6490; version=QCM8550; version=QCN6024; version=QCN9024; version=QCS4490; version=QCS6490; version=QCS8550; version=Qualcomm Video Collaboration VC3 Platform; version=SD855; version=SD865 5G; version=SD888; version=SDX55; version=SDX57M; version=SM7250P; version=SM7315; version=SM7325P; version=SM8550P; version=Snapdragon 480 5G Mobile Platform; version=Snapdragon 480+ 5G Mobile Platform (SM4350-AC); version=Snapdragon 4 Gen 1 Mobile Platform; version=Snapdragon 4 Gen 2 Mobile Platform; version=Snapdragon 690 5G Mobile Platform; version=Snapdragon 695 5G Mobile Platform; version=Snapdragon 750G 5G Mobile Platform; version=Snapdragon 765 5G Mobile Platform (SM7250-AA); version=Snapdragon 765G 5G Mobile Platform (SM7250-AB); version=Snapdragon 768G 5G Mobile Platform (SM7250-AC); version=Snapdragon 778G 5G Mobile Platform; version=Snapdragon 778G+ 5G Mobile Platform (SM7325-AE); version=Snapdragon 780G 5G Mobile Platform; version=Snapdragon 782G Mobile Platform (SM7325-AF); version=Snapdragon 7c+ Gen 3 Compute; version=Snapdragon 855+/860 Mobile Platform (SM8150-AC); version=Snapdragon 855 Mobile 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 888 5G Mobile Platform; version=Snapdragon 888+ 5G Mobile Platform (SM8350-AC); version=Snapdragon 8 Gen 1 Mobile Platform; version=Snapdragon 8+ Gen 1 Mobile Platform; version=Snapdragon 8 Gen 2 Mobile Platform; version=Snapdragon 8+ Gen 2 Mobile Platform; version=Snapdragon Auto 5G Modem-RF; version=Snapdragon X55 5G Modem-RF System; version=Snapdragon X65 5G Modem-RF System; version=Snapdragon X70 Modem-RF System; version=Snapdragon XR2 5G Platform; version=SXR2130; version=WCD9341; version=WCD9360; version=WCD9370; version=WCD9375; version=WCD9380; version=WCD9385; version=WCD9390; version=WCD9395; version=WCN3950; version=WCN3988; version=WCN6740; version=WSA8810; version=WSA8815; 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.

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-617Reachable Assertion
T1499Endpoint 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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