CVE-2025-47371

Transient service interruption via invalid LTE transport block

Published Mar 2, 2026 · Updated Mar 2, 2026

Reachable assertion in Qualcomm Snapdragon modem firmware allows physically proximate attackers to interrupt service via a malformed LTE RLC packet. The modem's LTE Radio Link Control processing accepts a transport block with invalid contents and reaches an assertion instead of rejecting the packet. No authentication or user interaction is required, but the attacker must be able to transmit LTE traffic to the user equipment; the reported effect is a temporary availability loss.

CVSS severity6.5
Medium
EPSS probability0.10%
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 modem firmware allows physically proximate attackers to interrupt service via a malformed LTE RLC packet. The modem's LTE Radio Link Control processing accepts a transport block with invalid contents and reaches an assertion instead of rejecting the packet. No authentication or user interaction is required, but the attacker must be able to transmit LTE traffic to the user equipment; the reported effect is a temporary availability loss.

The record

CVE
CVE-2025-47371
Published
Mar 2, 2026
Updated
Mar 2, 2026
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-617, T1642
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 2, 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=5G Fixed Wireless Access Platform
  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=FWA Gen 3 Ultra Platform
  11. Affected versionversion=G1 Gen 1
  12. Affected versionversion=Milos
  13. Affected versionversion=Netrani
  14. Affected versionversion=Orne
  15. Affected versionversion=Palawan25
  16. Affected versionversion=QCA6174A
  17. Affected versionversion=QCA6391
  18. Affected versionversion=QCA6574A
  19. Affected versionversion=QCA6574AU
  20. Affected versionversion=QCA6584AU
  21. Affected versionversion=QCA6595AU
  22. Affected versionversion=QCA6678AQ
  23. Affected versionversion=QCA6688AQ
  24. Affected versionversion=QCA6696
  25. Affected versionversion=QCA6698AQ
  26. Affected versionversion=QCA6698AU
  27. Affected versionversion=QCA6797AQ
  28. Affected versionversion=QCA8081
  29. Affected versionversion=QCA8337
  30. Affected versionversion=QCC710
  31. Affected versionversion=QCM2290
  32. Affected versionversion=QCM4325
  33. Affected versionversion=QCM4490
  34. Affected versionversion=QCN6024
  35. Affected versionversion=QCN6224
  36. Affected versionversion=QCN6274
  37. Affected versionversion=QCN9011
  38. Affected versionversion=QCN9012
  39. Affected versionversion=QCN9024
  40. Affected versionversion=QCS2290
  41. Affected versionversion=QCS4290
  42. Affected versionversion=QCS4490
  43. Affected versionversion=QCS8550
  44. Affected versionversion=QFW7114
  45. Affected versionversion=QFW7124
  46. Affected versionversion=QMP1000
  47. Affected versionversion=Robotics RB2 Platform
  48. Affected versionversion=SD662
  49. Affected versionversion=SD 8 Gen1 5G
  50. Affected versionversion=SDX61
  51. Affected versionversion=SDX71M
  52. Affected versionversion=SM6225P
  53. Affected versionversion=SM6250
  54. Affected versionversion=SM6650P
  55. Affected versionversion=SM7435
  56. Affected versionversion=SM7550
  57. Affected versionversion=SM7550P
  58. Affected versionversion=SM7635P
  59. Affected versionversion=SM7675
  60. Affected versionversion=SM7675P
  61. Affected versionversion=SM8475P
  62. Affected versionversion=SM8550P
  63. Affected versionversion=SM8635
  64. Affected versionversion=SM8635P
  65. Affected versionversion=SM8650Q
  66. Affected versionversion=SM8750P
  67. Affected versionversion=Snapdragon 460 Mobile Platform
  68. Affected versionversion=Snapdragon 4 Gen 2 Mobile Platform
  69. Affected versionversion=Snapdragon 662 Mobile Platform
  70. Affected versionversion=Snapdragon 680 4G Mobile Platform
  71. Affected versionversion=Snapdragon 685 4G Mobile Platform
  72. Affected versionversion=Snapdragon 690 5G Mobile Platform
  73. Affected versionversion=Snapdragon 6 Gen 1 Mobile Platform
  74. Affected versionversion=Snapdragon 6 Gen 3 Mobile Platform
  75. Affected versionversion=Snapdragon 6 Gen 4 Mobile Platform
  76. Affected versionversion=Snapdragon 7c Compute Platform
  77. Affected versionversion=Snapdragon 7c Gen 2 Compute Platform "Rennell Pro"
  78. Affected versionversion=Snapdragon 7 Gen 1 Mobile Platform
  79. Affected versionversion=Snapdragon 7+ Gen 2 Mobile Platform
  80. Affected versionversion=Snapdragon 7s Gen 3 Mobile Platform
  81. Affected versionversion=Snapdragon 865 5G Mobile Platform
  82. Affected versionversion=Snapdragon 865+ 5G Mobile Platform
  83. Affected versionversion=Snapdragon 870 5G Mobile Platform
  84. Affected versionversion=Snapdragon 8 Elite
  85. Affected versionversion=Snapdragon 8 Gen 1 Mobile Platform
  86. Affected versionversion=Snapdragon 8+ Gen 1 Mobile Platform
  87. Affected versionversion=Snapdragon 8 Gen 2 Mobile Platform
  88. Affected versionversion=Snapdragon 8+ Gen 2 Mobile Platform
  89. Affected versionversion=Snapdragon 8 Gen 3 Mobile Platform
  90. Affected versionversion=Snapdragon Auto 5G Modem-RF
  91. Affected versionversion=Snapdragon Auto 5G Modem-RF Gen 2
  92. Affected versionversion=Snapdragon X55 5G Modem-RF System
  93. Affected versionversion=Snapdragon X65 5G Modem-RF System
  94. Affected versionversion=Snapdragon X72 5G Modem-RF System
  95. Affected versionversion=Snapdragon X75 5G Modem-RF System
  96. Affected versionversion=Snapdragon X80 5G Modem-RF System
  97. Affected versionversion=WCD9335
  98. Affected versionversion=WCD9340
  99. Affected versionversion=WCD9341
  100. Affected versionversion=WCD9360
  101. Affected versionversion=WCD9370
  102. Affected versionversion=WCD9371
  103. Affected versionversion=WCD9375
  104. Affected versionversion=WCD9378
  105. Affected versionversion=WCD9380
  106. Affected versionversion=WCD9385
  107. Affected versionversion=WCD9390
  108. Affected versionversion=WCD9395
  109. Affected versionversion=WCN3910
  110. Affected versionversion=WCN3950
  111. Affected versionversion=WCN3988
  112. Affected versionversion=WCN6650
  113. Affected versionversion=WCN6755
  114. Affected versionversion=WCN7860
  115. Affected versionversion=WCN7861
  116. Affected versionversion=WCN7880
  117. Affected versionversion=WCN7881
  118. Affected versionversion=WSA8810
  119. Affected versionversion=WSA8815
  120. Affected versionversion=WSA8830
  121. Affected versionversion=WSA8832
  122. Affected versionversion=WSA8835
  123. Affected versionversion=WSA8840
  124. Affected versionversion=WSA8845
  125. Affected versionversion=WSA8845H

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=5G Fixed Wireless Access Platform; version=AR8035; version=CSRA6620; version=CSRA6640; version=FastConnect 6200; version=FastConnect 6700; version=FastConnect 6800; version=FastConnect 6900; version=FastConnect 7800; version=FWA Gen 3 Ultra Platform; version=G1 Gen 1; version=Milos; version=Netrani; version=Orne; version=Palawan25; version=QCA6174A; version=QCA6391; version=QCA6574A; version=QCA6574AU; version=QCA6584AU; version=QCA6595AU; version=QCA6678AQ; version=QCA6688AQ; version=QCA6696; version=QCA6698AQ; version=QCA6698AU; version=QCA6797AQ; version=QCA8081; version=QCA8337; version=QCC710; version=QCM2290; version=QCM4325; version=QCM4490; version=QCN6024; version=QCN6224; version=QCN6274; version=QCN9011; version=QCN9012; version=QCN9024; version=QCS2290; version=QCS4290; version=QCS4490; version=QCS8550; version=QFW7114; version=QFW7124; version=QMP1000; version=Robotics RB2 Platform; version=SD662; version=SD 8 Gen1 5G; version=SDX61; version=SDX71M; version=SM6225P; version=SM6250; version=SM6650P; version=SM7435; version=SM7550; version=SM7550P; version=SM7635P; version=SM7675; version=SM7675P; version=SM8475P; version=SM8550P; version=SM8635; version=SM8635P; version=SM8650Q; version=SM8750P; version=Snapdragon 460 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 6 Gen 1 Mobile Platform; version=Snapdragon 6 Gen 3 Mobile Platform; version=Snapdragon 6 Gen 4 Mobile Platform; version=Snapdragon 7c Compute Platform; version=Snapdragon 7c Gen 2 Compute Platform "Rennell Pro"; 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 8 Elite; 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 8 Gen 3 Mobile Platform; version=Snapdragon Auto 5G Modem-RF; version=Snapdragon Auto 5G Modem-RF Gen 2; version=Snapdragon X55 5G Modem-RF System; version=Snapdragon X65 5G Modem-RF System; version=Snapdragon X72 5G Modem-RF System; version=Snapdragon X75 5G Modem-RF System; version=Snapdragon X80 5G Modem-RF System; version=WCD9335; version=WCD9340; version=WCD9341; version=WCD9360; version=WCD9370; version=WCD9371; version=WCD9375; version=WCD9378; version=WCD9380; version=WCD9385; version=WCD9390; version=WCD9395; version=WCN3910; version=WCN3950; 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

6.5QualcommCVSS:3.1/AV:A/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-617Reachable Assertion
T1642Endpoint 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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