CVE-2025-27034Network attack vector

Memory corruption via unchecked PLMN list index

Published Sep 24, 2025 · Updated Sep 24, 2025

Memory corruption in Snapdragon's Multi-Mode Call Processor allows remote attackers to corrupt memory through a network-supplied SOR failed list. During PLMN selection, the processor uses an inadequately validated array index to access entries in the Steering of Roaming failed list. A network-supplied roaming list is required, and Qualcomm does not disclose whether the corruption causes code execution, data access, or a crash.

CVSS severity9.8
Critical
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in Snapdragon's Multi-Mode Call Processor allows remote attackers to corrupt memory through a network-supplied SOR failed list. During PLMN selection, the processor uses an inadequately validated array index to access entries in the Steering of Roaming failed list. A network-supplied roaming list is required, and Qualcomm does not disclose whether the corruption causes code execution, data access, or a crash.

The record

CVE
CVE-2025-27034
Published
Sep 24, 2025
Updated
Sep 24, 2025
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-129
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2025Record 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=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=QCA6174A
  9. Affected versionversion=QCA6391
  10. Affected versionversion=QCA6574A
  11. Affected versionversion=QCA6584AU
  12. Affected versionversion=QCA6595AU
  13. Affected versionversion=QCA6696
  14. Affected versionversion=QCA6698AQ
  15. Affected versionversion=QCA8081
  16. Affected versionversion=QCA8337
  17. Affected versionversion=QCC710
  18. Affected versionversion=QCM4490
  19. Affected versionversion=QCM5430
  20. Affected versionversion=QCM6490
  21. Affected versionversion=QCM8550
  22. Affected versionversion=QCN6024
  23. Affected versionversion=QCN6224
  24. Affected versionversion=QCN6274
  25. Affected versionversion=QCN9024
  26. Affected versionversion=QCS4490
  27. Affected versionversion=QCS5430
  28. Affected versionversion=QCS6490
  29. Affected versionversion=QCS8550
  30. Affected versionversion=QEP8111
  31. Affected versionversion=QFW7114
  32. Affected versionversion=QFW7124
  33. Affected versionversion=Qualcomm Video Collaboration VC3 Platform
  34. Affected versionversion=SD 8 Gen1 5G
  35. Affected versionversion=SDX55
  36. Affected versionversion=SDX57M
  37. Affected versionversion=SDX61
  38. Affected versionversion=SDX71M
  39. Affected versionversion=SDX80M
  40. Affected versionversion=SG8275P
  41. Affected versionversion=SM4635
  42. Affected versionversion=SM6650
  43. Affected versionversion=SM7250P
  44. Affected versionversion=SM7325P
  45. Affected versionversion=SM7635
  46. Affected versionversion=SM7675
  47. Affected versionversion=SM7675P
  48. Affected versionversion=SM8550P
  49. Affected versionversion=SM8635
  50. Affected versionversion=SM8635P
  51. Affected versionversion=SM8650Q
  52. Affected versionversion=SM8750
  53. Affected versionversion=SM8750P
  54. Affected versionversion=Snapdragon 480 5G Mobile Platform
  55. Affected versionversion=Snapdragon 480+ 5G Mobile Platform (SM4350-AC)
  56. Affected versionversion=Snapdragon 4 Gen 1 Mobile Platform
  57. Affected versionversion=Snapdragon 690 5G Mobile Platform
  58. Affected versionversion=Snapdragon 695 5G Mobile Platform
  59. Affected versionversion=Snapdragon 765 5G Mobile Platform (SM7250-AA)
  60. Affected versionversion=Snapdragon 765G 5G Mobile Platform (SM7250-AB)
  61. Affected versionversion=Snapdragon 768G 5G Mobile Platform (SM7250-AC)
  62. Affected versionversion=Snapdragon 778G 5G Mobile Platform
  63. Affected versionversion=Snapdragon 778G+ 5G Mobile Platform (SM7325-AE)
  64. Affected versionversion=Snapdragon 780G 5G Mobile Platform
  65. Affected versionversion=Snapdragon 782G Mobile Platform (SM7325-AF)
  66. Affected versionversion=Snapdragon 7c+ Gen 3 Compute
  67. Affected versionversion=Snapdragon 865 5G Mobile Platform
  68. Affected versionversion=Snapdragon 865+ 5G Mobile Platform (SM8250-AB)
  69. Affected versionversion=Snapdragon 870 5G Mobile Platform (SM8250-AC)
  70. Affected versionversion=Snapdragon 888 5G Mobile Platform
  71. Affected versionversion=Snapdragon 888+ 5G Mobile Platform (SM8350-AC)
  72. Affected versionversion=Snapdragon 8 Gen 1 Mobile Platform
  73. Affected versionversion=Snapdragon 8+ Gen 1 Mobile Platform
  74. Affected versionversion=Snapdragon 8 Gen 2 Mobile Platform
  75. Affected versionversion=Snapdragon 8+ Gen 2 Mobile Platform
  76. Affected versionversion=Snapdragon 8 Gen 3 Mobile Platform
  77. Affected versionversion=Snapdragon Auto 5G Modem-RF
  78. Affected versionversion=Snapdragon Auto 5G Modem-RF Gen 2
  79. Affected versionversion=Snapdragon X35 5G Modem-RF System
  80. Affected versionversion=Snapdragon X55 5G Modem-RF System
  81. Affected versionversion=Snapdragon X62 5G Modem-RF System
  82. Affected versionversion=Snapdragon X65 5G Modem-RF System
  83. Affected versionversion=Snapdragon X70 Modem-RF System
  84. Affected versionversion=Snapdragon X72 5G Modem-RF System
  85. Affected versionversion=Snapdragon X75 5G Modem-RF System
  86. Affected versionversion=WCD9340
  87. Affected versionversion=WCD9341
  88. Affected versionversion=WCD9360
  89. Affected versionversion=WCD9370
  90. Affected versionversion=WCD9375
  91. Affected versionversion=WCD9378
  92. Affected versionversion=WCD9380
  93. Affected versionversion=WCD9385
  94. Affected versionversion=WCD9390
  95. Affected versionversion=WCD9395
  96. Affected versionversion=WCN3950
  97. Affected versionversion=WCN3988
  98. Affected versionversion=WCN6450
  99. Affected versionversion=WCN6650
  100. Affected versionversion=WCN6740
  101. Affected versionversion=WCN6755
  102. Affected versionversion=WCN7860
  103. Affected versionversion=WCN7861
  104. Affected versionversion=WCN7880
  105. Affected versionversion=WCN7881
  106. Affected versionversion=WSA8810
  107. Affected versionversion=WSA8815
  108. Affected versionversion=WSA8830
  109. Affected versionversion=WSA8832
  110. Affected versionversion=WSA8835
  111. Affected versionversion=WSA8840
  112. Affected versionversion=WSA8845
  113. 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=QCA6174A; version=QCA6391; version=QCA6574A; version=QCA6584AU; version=QCA6595AU; version=QCA6696; version=QCA6698AQ; version=QCA8081; version=QCA8337; version=QCC710; version=QCM4490; version=QCM5430; version=QCM6490; version=QCM8550; version=QCN6024; version=QCN6224; version=QCN6274; version=QCN9024; version=QCS4490; version=QCS5430; version=QCS6490; version=QCS8550; version=QEP8111; version=QFW7114; version=QFW7124; version=Qualcomm Video Collaboration VC3 Platform; version=SD 8 Gen1 5G; version=SDX55; version=SDX57M; version=SDX61; version=SDX71M; version=SDX80M; version=SG8275P; version=SM4635; version=SM6650; version=SM7250P; version=SM7325P; version=SM7635; version=SM7675; version=SM7675P; version=SM8550P; version=SM8635; version=SM8635P; version=SM8650Q; version=SM8750; version=SM8750P; version=Snapdragon 480 5G Mobile Platform; version=Snapdragon 480+ 5G Mobile Platform (SM4350-AC); version=Snapdragon 4 Gen 1 Mobile Platform; version=Snapdragon 690 5G Mobile Platform; version=Snapdragon 695 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 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 8 Gen 3 Mobile Platform; version=Snapdragon Auto 5G Modem-RF; version=Snapdragon Auto 5G Modem-RF Gen 2; version=Snapdragon X35 5G Modem-RF System; version=Snapdragon X55 5G Modem-RF System; version=Snapdragon X62 5G Modem-RF System; version=Snapdragon X65 5G Modem-RF System; version=Snapdragon X70 Modem-RF System; version=Snapdragon X72 5G Modem-RF System; version=Snapdragon X75 5G Modem-RF System; version=WCD9340; version=WCD9341; version=WCD9360; version=WCD9370; version=WCD9375; version=WCD9378; version=WCD9380; version=WCD9385; version=WCD9390; version=WCD9395; version=WCN3950; version=WCN3988; version=WCN6450; version=WCN6650; version=WCN6740; 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

9.8Qualcomm, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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-129Improper Validation of Array Index

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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