CVE-2025-21427Network attack vector

Memory disclosure via RTP payload buffer over-read

Published Jul 8, 2025 · Updated Jul 8, 2025

Information disclosure in Data HLOS-LNX in Qualcomm Snapdragon allows remote attackers to read memory via a crafted RTP packet payload. The RTP decoder reads beyond the packet payload buffer while user equipment processes network-delivered RTP data. No authentication or user interaction is required; the over-read exposes memory and can interrupt packet processing.

CVSS severity8.2
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Data HLOS-LNX in Qualcomm Snapdragon allows remote attackers to read memory via a crafted RTP packet payload. The RTP decoder reads beyond the packet payload buffer while user equipment processes network-delivered RTP data. No authentication or user interaction is required; the over-read exposes memory and can interrupt packet processing.

The record

CVE
CVE-2025-21427
Published
Jul 8, 2025
Updated
Jul 8, 2025
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-126
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 8, 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=APQ8064AU
  2. Affected versionversion=AQT1000
  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=MSM8996AU
  9. Affected versionversion=QAM8255P
  10. Affected versionversion=QAM8295P
  11. Affected versionversion=QAM8650P
  12. Affected versionversion=QAM8775P
  13. Affected versionversion=QCA6310
  14. Affected versionversion=QCA6320
  15. Affected versionversion=QCA6335
  16. Affected versionversion=QCA6391
  17. Affected versionversion=QCA6420
  18. Affected versionversion=QCA6426
  19. Affected versionversion=QCA6430
  20. Affected versionversion=QCA6436
  21. Affected versionversion=QCA6564
  22. Affected versionversion=QCA6564A
  23. Affected versionversion=QCA6564AU
  24. Affected versionversion=QCA6574
  25. Affected versionversion=QCA6574A
  26. Affected versionversion=QCA6574AU
  27. Affected versionversion=QCA6595
  28. Affected versionversion=QCA6595AU
  29. Affected versionversion=QCA6678AQ
  30. Affected versionversion=QCA6688AQ
  31. Affected versionversion=QCA6696
  32. Affected versionversion=QCA6698AQ
  33. Affected versionversion=QCA6797AQ
  34. Affected versionversion=QCM5430
  35. Affected versionversion=QCM6125
  36. Affected versionversion=QCM6490
  37. Affected versionversion=QCM8550
  38. Affected versionversion=QCN9274
  39. Affected versionversion=QCS410
  40. Affected versionversion=QCS4490
  41. Affected versionversion=QCS5430
  42. Affected versionversion=QCS610
  43. Affected versionversion=QCS6125
  44. Affected versionversion=QCS615
  45. Affected versionversion=QCS6490
  46. Affected versionversion=QCS8300
  47. Affected versionversion=QCS8550
  48. Affected versionversion=QCS9100
  49. Affected versionversion=Qualcomm 205 Mobile Platform
  50. Affected versionversion=Qualcomm 215 Mobile Platform
  51. Affected versionversion=Qualcomm Video Collaboration VC1 Platform
  52. Affected versionversion=Qualcomm Video Collaboration VC3 Platform
  53. Affected versionversion=Robotics RB3 Platform
  54. Affected versionversion=SA4150P
  55. Affected versionversion=SA4155P
  56. Affected versionversion=SA6145P
  57. Affected versionversion=SA6150P
  58. Affected versionversion=SA6155
  59. Affected versionversion=SA6155P
  60. Affected versionversion=SA7255P
  61. Affected versionversion=SA7775P
  62. Affected versionversion=SA8145P
  63. Affected versionversion=SA8150P
  64. Affected versionversion=SA8155
  65. Affected versionversion=SA8155P
  66. Affected versionversion=SA8195P
  67. Affected versionversion=SA8255P
  68. Affected versionversion=SA8295P
  69. Affected versionversion=SA8620P
  70. Affected versionversion=SA8650P
  71. Affected versionversion=SA8775P
  72. Affected versionversion=SA9000P
  73. Affected versionversion=SD626
  74. Affected versionversion=SD660
  75. Affected versionversion=SD670
  76. Affected versionversion=SD730
  77. Affected versionversion=SD835
  78. Affected versionversion=SD855
  79. Affected versionversion=SD865 5G
  80. Affected versionversion=SD888
  81. Affected versionversion=SD 8 Gen1 5G
  82. Affected versionversion=SDM429W
  83. Affected versionversion=SDX55
  84. Affected versionversion=SG4150P
  85. Affected versionversion=SM4125
  86. Affected versionversion=SM6250
  87. Affected versionversion=SM6370
  88. Affected versionversion=SM7315
  89. Affected versionversion=SM7325P
  90. Affected versionversion=SM8550P
  91. Affected versionversion=Smart Display 200 Platform (APQ5053-AA)
  92. Affected versionversion=Snapdragon 210 Processor
  93. Affected versionversion=Snapdragon 212 Mobile Platform
  94. Affected versionversion=Snapdragon 429 Mobile Platform
  95. Affected versionversion=Snapdragon 460 Mobile Platform
  96. Affected versionversion=Snapdragon 480 5G Mobile Platform
  97. Affected versionversion=Snapdragon 480+ 5G Mobile Platform (SM4350-AC)
  98. Affected versionversion=Snapdragon 4 Gen 1 Mobile Platform
  99. Affected versionversion=Snapdragon 4 Gen 2 Mobile Platform
  100. Affected versionversion=Snapdragon 625 Mobile Platform
  101. Affected versionversion=Snapdragon 626 Mobile Platform
  102. Affected versionversion=Snapdragon 660 Mobile Platform
  103. Affected versionversion=Snapdragon 662 Mobile Platform
  104. Affected versionversion=Snapdragon 670 Mobile Platform
  105. Affected versionversion=Snapdragon 675 Mobile Platform
  106. Affected versionversion=Snapdragon 678 Mobile Platform (SM6150-AC)
  107. Affected versionversion=Snapdragon 680 4G Mobile Platform
  108. Affected versionversion=Snapdragon 685 4G Mobile Platform (SM6225-AD)
  109. Affected versionversion=Snapdragon 695 5G Mobile Platform
  110. Affected versionversion=Snapdragon 710 Mobile Platform
  111. Affected versionversion=Snapdragon 720G Mobile Platform
  112. Affected versionversion=Snapdragon 730G Mobile Platform (SM7150-AB)
  113. Affected versionversion=Snapdragon 730 Mobile Platform (SM7150-AA)
  114. Affected versionversion=Snapdragon 732G Mobile Platform (SM7150-AC)
  115. Affected versionversion=Snapdragon 778G 5G Mobile Platform
  116. Affected versionversion=Snapdragon 778G+ 5G Mobile Platform (SM7325-AE)
  117. Affected versionversion=Snapdragon 780G 5G Mobile Platform
  118. Affected versionversion=Snapdragon 782G Mobile Platform (SM7325-AF)
  119. Affected versionversion=Snapdragon 7c+ Gen 3 Compute
  120. Affected versionversion=Snapdragon 820 Automotive Platform
  121. Affected versionversion=Snapdragon 835 Mobile PC Platform
  122. Affected versionversion=Snapdragon 845 Mobile Platform
  123. Affected versionversion=Snapdragon 855+/860 Mobile Platform (SM8150-AC)
  124. Affected versionversion=Snapdragon 855 Mobile Platform
  125. Affected versionversion=Snapdragon 865 5G Mobile Platform
  126. Affected versionversion=Snapdragon 865+ 5G Mobile Platform (SM8250-AB)
  127. Affected versionversion=Snapdragon 870 5G Mobile Platform (SM8250-AC)
  128. Affected versionversion=Snapdragon 888 5G Mobile Platform
  129. Affected versionversion=Snapdragon 888+ 5G Mobile Platform (SM8350-AC)
  130. Affected versionversion=Snapdragon 8 Gen 1 Mobile Platform
  131. Affected versionversion=Snapdragon 8+ Gen 1 Mobile Platform
  132. Affected versionversion=Snapdragon 8 Gen 2 Mobile Platform
  133. Affected versionversion=Snapdragon 8+ Gen 2 Mobile Platform
  134. Affected versionversion=Snapdragon 8 Gen 3 Mobile Platform
  135. Affected versionversion=Snapdragon W5+ Gen 1 Wearable Platform
  136. Affected versionversion=Snapdragon X50 5G Modem-RF System
  137. Affected versionversion=Snapdragon X55 5G Modem-RF System
  138. Affected versionversion=Snapdragon XR1 Platform
  139. Affected versionversion=Snapdragon XR2 5G Platform
  140. Affected versionversion=Snapdragon XR2+ Gen 1 Platform
  141. Affected versionversion=SW5100
  142. Affected versionversion=SW5100P
  143. Affected versionversion=SXR1120
  144. Affected versionversion=SXR2130
  145. Affected versionversion=TalynPlus
  146. Affected versionversion=Vision Intelligence 100 Platform (APQ8053-AA)
  147. Affected versionversion=Vision Intelligence 200 Platform (APQ8053-AC)
  148. Affected versionversion=Vision Intelligence 300 Platform
  149. Affected versionversion=Vision Intelligence 400 Platform
  150. Affected versionversion=WCD9326
  151. Affected versionversion=WCD9335
  152. Affected versionversion=WCD9340
  153. Affected versionversion=WCD9341
  154. Affected versionversion=WCD9370
  155. Affected versionversion=WCD9375
  156. Affected versionversion=WCD9380
  157. Affected versionversion=WCD9385
  158. Affected versionversion=WCD9390
  159. Affected versionversion=WCD9395
  160. Affected versionversion=WCN3610
  161. Affected versionversion=WCN3615
  162. Affected versionversion=WCN3620
  163. Affected versionversion=WCN3660B
  164. Affected versionversion=WCN3680B
  165. Affected versionversion=WCN3910
  166. Affected versionversion=WCN3950
  167. Affected versionversion=WCN3980
  168. Affected versionversion=WCN3988
  169. Affected versionversion=WCN3990
  170. Affected versionversion=WCN6740
  171. Affected versionversion=WSA8810
  172. Affected versionversion=WSA8815
  173. Affected versionversion=WSA8830
  174. Affected versionversion=WSA8832
  175. Affected versionversion=WSA8835
  176. Affected versionversion=WSA8840
  177. Affected versionversion=WSA8845
  178. Affected versionversion=WSA8845H

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=APQ8064AU; version=AQT1000; version=FastConnect 6200; version=FastConnect 6700; version=FastConnect 6800; version=FastConnect 6900; version=FastConnect 7800; version=MSM8996AU; version=QAM8255P; version=QAM8295P; version=QAM8650P; version=QAM8775P; version=QCA6310; version=QCA6320; version=QCA6335; version=QCA6391; version=QCA6420; version=QCA6426; version=QCA6430; version=QCA6436; version=QCA6564; version=QCA6564A; version=QCA6564AU; version=QCA6574; version=QCA6574A; version=QCA6574AU; version=QCA6595; version=QCA6595AU; version=QCA6678AQ; version=QCA6688AQ; version=QCA6696; version=QCA6698AQ; version=QCA6797AQ; version=QCM5430; version=QCM6125; version=QCM6490; version=QCM8550; version=QCN9274; version=QCS410; version=QCS4490; version=QCS5430; version=QCS610; version=QCS6125; version=QCS615; version=QCS6490; version=QCS8300; version=QCS8550; version=QCS9100; version=Qualcomm 205 Mobile Platform; version=Qualcomm 215 Mobile Platform; version=Qualcomm Video Collaboration VC1 Platform; version=Qualcomm Video Collaboration VC3 Platform; version=Robotics RB3 Platform; version=SA4150P; version=SA4155P; version=SA6145P; version=SA6150P; version=SA6155; version=SA6155P; version=SA7255P; version=SA7775P; version=SA8145P; version=SA8150P; version=SA8155; version=SA8155P; version=SA8195P; version=SA8255P; version=SA8295P; version=SA8620P; version=SA8650P; version=SA8775P; version=SA9000P; version=SD626; version=SD660; version=SD670; version=SD730; version=SD835; version=SD855; version=SD865 5G; version=SD888; version=SD 8 Gen1 5G; version=SDM429W; version=SDX55; version=SG4150P; version=SM4125; version=SM6250; version=SM6370; version=SM7315; version=SM7325P; version=SM8550P; version=Smart Display 200 Platform (APQ5053-AA); version=Snapdragon 210 Processor; version=Snapdragon 212 Mobile Platform; version=Snapdragon 429 Mobile Platform; version=Snapdragon 460 Mobile Platform; 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 625 Mobile Platform; version=Snapdragon 626 Mobile Platform; version=Snapdragon 660 Mobile Platform; version=Snapdragon 662 Mobile Platform; version=Snapdragon 670 Mobile Platform; version=Snapdragon 675 Mobile Platform; version=Snapdragon 678 Mobile Platform (SM6150-AC); version=Snapdragon 680 4G Mobile Platform; version=Snapdragon 685 4G Mobile Platform (SM6225-AD); version=Snapdragon 695 5G Mobile Platform; version=Snapdragon 710 Mobile Platform; version=Snapdragon 720G Mobile Platform; version=Snapdragon 730G Mobile Platform (SM7150-AB); version=Snapdragon 730 Mobile Platform (SM7150-AA); version=Snapdragon 732G Mobile Platform (SM7150-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 820 Automotive Platform; version=Snapdragon 835 Mobile PC Platform; version=Snapdragon 845 Mobile Platform; 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 8 Gen 3 Mobile Platform; version=Snapdragon W5+ Gen 1 Wearable Platform; version=Snapdragon X50 5G Modem-RF System; version=Snapdragon X55 5G Modem-RF System; version=Snapdragon XR1 Platform; version=Snapdragon XR2 5G Platform; version=Snapdragon XR2+ Gen 1 Platform; version=SW5100; version=SW5100P; version=SXR1120; version=SXR2130; version=TalynPlus; version=Vision Intelligence 100 Platform (APQ8053-AA); version=Vision Intelligence 200 Platform (APQ8053-AC); version=Vision Intelligence 300 Platform; version=Vision Intelligence 400 Platform; version=WCD9326; version=WCD9335; version=WCD9340; version=WCD9341; version=WCD9370; version=WCD9375; version=WCD9380; version=WCD9385; version=WCD9390; version=WCD9395; version=WCN3610; version=WCN3615; version=WCN3620; version=WCN3660B; version=WCN3680B; version=WCN3910; version=WCN3950; version=WCN3980; version=WCN3988; version=WCN3990; version=WCN6740; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8832; version=WSA8835; version=WSA8840; version=WSA8845; version=WSA8845H

Published CVSS scores

8.2Qualcomm, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L

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-126Buffer Over-read

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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