CVE-2025-21449Network attack vector

Transient service interruption via malformed SSID length

Published Jul 8, 2025 · Updated Jul 8, 2025

Buffer over-read in Qualcomm Snapdragon WLAN firmware allows remote attackers to interrupt service with malformed SSID information elements. The WLAN embedded software trusts a malformed length field in an SSID information element and reads beyond the buffer boundary during parsing. No privileges or user interaction are required; reception of the crafted WLAN element can cause a transient denial of service without reported data exposure or modification.

CVSS severity7.5
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

Buffer over-read in Qualcomm Snapdragon WLAN firmware allows remote attackers to interrupt service with malformed SSID information elements. The WLAN embedded software trusts a malformed length field in an SSID information element and reads beyond the buffer boundary during parsing. No privileges or user interaction are required; reception of the crafted WLAN element can cause a transient denial of service without reported data exposure or modification.

The record

CVE
CVE-2025-21449
Published
Jul 8, 2025
Updated
Jul 8, 2025
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-126, T1499.004
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=315 5G IoT Modem
  2. Affected versionversion=APQ8017
  3. Affected versionversion=APQ8064AU
  4. Affected versionversion=AQT1000
  5. Affected versionversion=AR8031
  6. Affected versionversion=AR8035
  7. Affected versionversion=AR9380
  8. Affected versionversion=CSR8811
  9. Affected versionversion=CSRA6620
  10. Affected versionversion=CSRA6640
  11. Affected versionversion=CSRB31024
  12. Affected versionversion=FastConnect 6200
  13. Affected versionversion=FastConnect 6700
  14. Affected versionversion=FastConnect 6800
  15. Affected versionversion=FastConnect 6900
  16. Affected versionversion=FastConnect 7800
  17. Affected versionversion=Flight RB5 5G Platform
  18. Affected versionversion=Home Hub 100 Platform
  19. Affected versionversion=Immersive Home 214 Platform
  20. Affected versionversion=Immersive Home 216 Platform
  21. Affected versionversion=Immersive Home 316 Platform
  22. Affected versionversion=Immersive Home 318 Platform
  23. Affected versionversion=Qualcomm Video Collaboration VC1 Platform
  24. Affected versionversion=Qualcomm Video Collaboration VC3 Platform
  25. Affected versionversion=Qualcomm Video Collaboration VC5 Platform
  26. Affected versionversion=Robotics RB2 Platform
  27. Affected versionversion=Robotics RB3 Platform
  28. Affected versionversion=Robotics RB5 Platform
  29. Affected versionversion=SA4150P
  30. Affected versionversion=SA4155P
  31. Affected versionversion=SA6145P
  32. Affected versionversion=SA6150P
  33. Affected versionversion=SA6155
  34. Affected versionversion=SA6155P
  35. Affected versionversion=SA7255P
  36. Affected versionversion=SA7775P
  37. Affected versionversion=SA8145P
  38. Affected versionversion=SA8150P
  39. Affected versionversion=SA8155
  40. Affected versionversion=SA8155P
  41. Affected versionversion=SA8195P
  42. Affected versionversion=SA8255P
  43. Affected versionversion=SA8295P
  44. Affected versionversion=SA8620P
  45. Affected versionversion=SA8650P
  46. Affected versionversion=SA8770P
  47. Affected versionversion=SA8775P
  48. Affected versionversion=SA9000P
  49. Affected versionversion=SC8180X+SDX55
  50. Affected versionversion=SC8380XP
  51. Affected versionversion=SD460
  52. Affected versionversion=SD660
  53. Affected versionversion=SD662
  54. Affected versionversion=SD670
  55. Affected versionversion=SD675
  56. Affected versionversion=SD 675
  57. Affected versionversion=SD730
  58. Affected versionversion=SD820
  59. Affected versionversion=SD821
  60. Affected versionversion=SD855
  61. Affected versionversion=SD865 5G
  62. Affected versionversion=SD888
  63. Affected versionversion=SD 8CX
  64. Affected versionversion=SD 8 Gen1 5G
  65. Affected versionversion=SDX20M
  66. Affected versionversion=SDX55
  67. Affected versionversion=SDX61
  68. Affected versionversion=SG4150P
  69. Affected versionversion=SG8275P
  70. Affected versionversion=SM4125
  71. Affected versionversion=SM4635
  72. Affected versionversion=SM6250
  73. Affected versionversion=SM6250P
  74. Affected versionversion=SM6370
  75. Affected versionversion=SM6650
  76. Affected versionversion=SM6650P
  77. Affected versionversion=SM7250P
  78. Affected versionversion=SM7315
  79. Affected versionversion=SM7325P
  80. Affected versionversion=SM7635
  81. Affected versionversion=SM7635P
  82. Affected versionversion=SM7675
  83. Affected versionversion=SM7675P
  84. Affected versionversion=SM8550P
  85. Affected versionversion=SM8635
  86. Affected versionversion=SM8635P
  87. Affected versionversion=SM8650Q
  88. Affected versionversion=SM8735
  89. Affected versionversion=SM8750
  90. Affected versionversion=SM8750P
  91. Affected versionversion=Smart Audio 200 Platform
  92. Affected versionversion=Smart Audio 400 Platform
  93. Affected versionversion=Snapdragon 460 Mobile Platform
  94. Affected versionversion=Snapdragon 480 5G Mobile Platform
  95. Affected versionversion=Snapdragon 480+ 5G Mobile Platform (SM4350-AC)
  96. Affected versionversion=Snapdragon 4 Gen 1 Mobile Platform
  97. Affected versionversion=Snapdragon 4 Gen 2 Mobile Platform
  98. Affected versionversion=Snapdragon 660 Mobile Platform
  99. Affected versionversion=Snapdragon 662 Mobile Platform
  100. Affected versionversion=Snapdragon 665 Mobile Platform
  101. Affected versionversion=Snapdragon 670 Mobile Platform
  102. Affected versionversion=Snapdragon 675 Mobile Platform
  103. Affected versionversion=Snapdragon 678 Mobile Platform (SM6150-AC)
  104. Affected versionversion=Snapdragon 680 4G Mobile Platform
  105. Affected versionversion=Snapdragon 685 4G Mobile Platform (SM6225-AD)
  106. Affected versionversion=Snapdragon 690 5G Mobile Platform
  107. Affected versionversion=Snapdragon 695 5G Mobile Platform
  108. Affected versionversion=Snapdragon 710 Mobile Platform
  109. Affected versionversion=Snapdragon 712 Mobile Platform
  110. Affected versionversion=Snapdragon 720G Mobile Platform
  111. Affected versionversion=Snapdragon 730G Mobile Platform (SM7150-AB)
  112. Affected versionversion=Snapdragon 730 Mobile Platform (SM7150-AA)
  113. Affected versionversion=Snapdragon 732G Mobile Platform (SM7150-AC)
  114. Affected versionversion=Snapdragon 750G 5G Mobile Platform
  115. Affected versionversion=Snapdragon 765 5G Mobile Platform (SM7250-AA)
  116. Affected versionversion=Snapdragon 765G 5G Mobile Platform (SM7250-AB)
  117. Affected versionversion=Snapdragon 768G 5G Mobile Platform (SM7250-AC)
  118. Affected versionversion=Snapdragon 778G 5G Mobile Platform
  119. Affected versionversion=Snapdragon 778G+ 5G Mobile Platform (SM7325-AE)
  120. Affected versionversion=Snapdragon 780G 5G Mobile Platform
  121. Affected versionversion=Snapdragon 782G Mobile Platform (SM7325-AF)
  122. Affected versionversion=Snapdragon 7c Compute Platform (SC7180-AC)
  123. Affected versionversion=Snapdragon 7c Gen 2 Compute Platform (SC7180-AD) "Rennell Pro"
  124. Affected versionversion=Snapdragon 7c+ Gen 3 Compute
  125. Affected versionversion=Snapdragon 820 Automotive Platform
  126. Affected versionversion=Snapdragon 820 Mobile Platform
  127. Affected versionversion=Snapdragon 821 Mobile Platform
  128. Affected versionversion=Snapdragon 845 Mobile Platform
  129. Affected versionversion=Snapdragon 850 Mobile Compute Platform
  130. Affected versionversion=Snapdragon 855+/860 Mobile Platform (SM8150-AC)
  131. Affected versionversion=Snapdragon 855 Mobile Platform
  132. Affected versionversion=Snapdragon 865 5G Mobile Platform
  133. Affected versionversion=Snapdragon 865+ 5G Mobile Platform (SM8250-AB)
  134. Affected versionversion=Snapdragon 870 5G Mobile Platform (SM8250-AC)
  135. Affected versionversion=Snapdragon 888 5G Mobile Platform
  136. Affected versionversion=Snapdragon 888+ 5G Mobile Platform (SM8350-AC)
  137. Affected versionversion=Snapdragon 8c Compute Platform (SC8180X-AD) "Poipu Lite"
  138. Affected versionversion=Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite"
  139. Affected versionversion=Snapdragon 8cx Compute Platform (SC8180X-AA, AB)
  140. Affected versionversion=Snapdragon 8cx Compute Platform (SC8180XP-AC, AF) "Poipu Pro"
  141. Affected versionversion=Snapdragon 8cx Gen 2 5G Compute Platform (SC8180X-AC, AF) "Poipu Pro"
  142. Affected versionversion=Snapdragon 8cx Gen 2 5G Compute Platform (SC8180XP-AA, AB)
  143. Affected versionversion=Snapdragon 8cx Gen 3 Compute Platform (SC8280XP-AB, BB)
  144. Affected versionversion=Snapdragon 8 Gen 1 Mobile Platform
  145. Affected versionversion=Snapdragon 8+ Gen 1 Mobile Platform
  146. Affected versionversion=Snapdragon 8 Gen 2 Mobile Platform
  147. Affected versionversion=Snapdragon 8+ Gen 2 Mobile Platform
  148. Affected versionversion=Snapdragon 8 Gen 3 Mobile Platform
  149. Affected versionversion=Snapdragon AR1 Gen 1 Platform
  150. Affected versionversion=Snapdragon AR1 Gen 1 Platform "Luna1"
  151. Affected versionversion=Snapdragon AR2 Gen 1 Platform
  152. Affected versionversion=Snapdragon Auto 4G Modem
  153. Affected versionversion=Snapdragon Auto 5G Modem-RF
  154. Affected versionversion=Snapdragon Auto 5G Modem-RF Gen 2
  155. Affected versionversion=Snapdragon W5+ Gen 1 Wearable Platform
  156. Affected versionversion=Snapdragon X12 LTE Modem
  157. Affected versionversion=Snapdragon X20 LTE Modem
  158. Affected versionversion=Snapdragon X24 LTE Modem
  159. Affected versionversion=Snapdragon X32 5G Modem-RF System
  160. Affected versionversion=Snapdragon X35 5G Modem-RF System
  161. Affected versionversion=Snapdragon X50 5G Modem-RF System
  162. Affected versionversion=Snapdragon X55 5G Modem-RF System
  163. Affected versionversion=Snapdragon X5 LTE Modem
  164. Affected versionversion=Snapdragon X62 5G Modem-RF System
  165. Affected versionversion=Snapdragon X65 5G Modem-RF System
  166. Affected versionversion=Snapdragon X72 5G Modem-RF System
  167. Affected versionversion=Snapdragon X75 5G Modem-RF System
  168. Affected versionversion=Snapdragon XR1 Platform
  169. Affected versionversion=Snapdragon XR2 5G Platform
  170. Affected versionversion=Snapdragon XR2+ Gen 1 Platform
  171. Affected versionversion=SRV1H
  172. Affected versionversion=SRV1L
  173. Affected versionversion=SRV1M
  174. Affected versionversion=SSG2115P
  175. Affected versionversion=SSG2125P
  176. Affected versionversion=SW5100
  177. Affected versionversion=SW5100P
  178. Affected versionversion=SXR1120
  179. Affected versionversion=SXR1230P
  180. Affected versionversion=SXR2130
  181. Affected versionversion=SXR2230P
  182. Affected versionversion=SXR2250P
  183. Affected versionversion=SXR2330P
  184. Affected versionversion=Vision Intelligence 300 Platform
  185. Affected versionversion=Vision Intelligence 400 Platform

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=315 5G IoT Modem; version=APQ8017; version=APQ8064AU; version=AQT1000; version=AR8031; version=AR8035; version=AR9380; version=CSR8811; version=CSRA6620; version=CSRA6640; version=CSRB31024; version=FastConnect 6200; version=FastConnect 6700; version=FastConnect 6800; version=FastConnect 6900; version=FastConnect 7800; version=Flight RB5 5G Platform; version=Home Hub 100 Platform; version=Immersive Home 214 Platform; version=Immersive Home 216 Platform; version=Immersive Home 316 Platform; version=Immersive Home 318 Platform; version=Qualcomm Video Collaboration VC1 Platform; version=Qualcomm Video Collaboration VC3 Platform; version=Qualcomm Video Collaboration VC5 Platform; version=Robotics RB2 Platform; version=Robotics RB3 Platform; version=Robotics RB5 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=SA8770P; version=SA8775P; version=SA9000P; version=SC8180X+SDX55; version=SC8380XP; version=SD460; version=SD660; version=SD662; version=SD670; version=SD675; version=SD 675; version=SD730; version=SD820; version=SD821; version=SD855; version=SD865 5G; version=SD888; version=SD 8CX; version=SD 8 Gen1 5G; version=SDX20M; version=SDX55; version=SDX61; version=SG4150P; version=SG8275P; version=SM4125; version=SM4635; version=SM6250; version=SM6250P; version=SM6370; version=SM6650; version=SM6650P; version=SM7250P; version=SM7315; version=SM7325P; version=SM7635; version=SM7635P; version=SM7675; version=SM7675P; version=SM8550P; version=SM8635; version=SM8635P; version=SM8650Q; version=SM8735; version=SM8750; version=SM8750P; version=Smart Audio 200 Platform; version=Smart Audio 400 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 660 Mobile Platform; version=Snapdragon 662 Mobile Platform; version=Snapdragon 665 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 690 5G Mobile Platform; version=Snapdragon 695 5G Mobile Platform; version=Snapdragon 710 Mobile Platform; version=Snapdragon 712 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 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 Compute Platform (SC7180-AC); version=Snapdragon 7c Gen 2 Compute Platform (SC7180-AD) "Rennell Pro"; version=Snapdragon 7c+ Gen 3 Compute; version=Snapdragon 820 Automotive Platform; version=Snapdragon 820 Mobile Platform; version=Snapdragon 821 Mobile Platform; version=Snapdragon 845 Mobile Platform; version=Snapdragon 850 Mobile Compute 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 8c Compute Platform (SC8180X-AD) "Poipu Lite"; version=Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite"; version=Snapdragon 8cx Compute Platform (SC8180X-AA, AB); version=Snapdragon 8cx Compute Platform (SC8180XP-AC, AF) "Poipu Pro"; version=Snapdragon 8cx Gen 2 5G Compute Platform (SC8180X-AC, AF) "Poipu Pro"; version=Snapdragon 8cx Gen 2 5G Compute Platform (SC8180XP-AA, AB); version=Snapdragon 8cx Gen 3 Compute Platform (SC8280XP-AB, BB); 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 AR1 Gen 1 Platform; version=Snapdragon AR1 Gen 1 Platform "Luna1"; version=Snapdragon AR2 Gen 1 Platform; version=Snapdragon Auto 4G Modem; version=Snapdragon Auto 5G Modem-RF; version=Snapdragon Auto 5G Modem-RF Gen 2; version=Snapdragon W5+ Gen 1 Wearable Platform; version=Snapdragon X12 LTE Modem; version=Snapdragon X20 LTE Modem; version=Snapdragon X24 LTE Modem; version=Snapdragon X32 5G Modem-RF System; version=Snapdragon X35 5G Modem-RF System; version=Snapdragon X50 5G Modem-RF System; version=Snapdragon X55 5G Modem-RF System; version=Snapdragon X5 LTE Modem; version=Snapdragon X62 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 XR1 Platform; version=Snapdragon XR2 5G Platform; version=Snapdragon XR2+ Gen 1 Platform; version=SRV1H; version=SRV1L; version=SRV1M; version=SSG2115P; version=SSG2125P; version=SW5100; version=SW5100P; version=SXR1120; version=SXR1230P; version=SXR2130; version=SXR2230P; version=SXR2250P; version=SXR2330P; version=Vision Intelligence 300 Platform; version=Vision Intelligence 400 Platform

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-126Buffer Over-read
T1499.004Application or System Exploitation

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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