CVE-2022-40521Network attack vector

Unauthenticated transient modem service interruption

Published Jun 6, 2023 · Updated Aug 3, 2024

Improper authorization in Qualcomm Snapdragon modem firmware allows remote attackers to interrupt modem service without authentication. Qualcomm has not published the missing authorization check or the request or message that triggers the failure. The flaw requires no privileges or user interaction and causes a transient modem service interruption without reported data exposure or modification.

CVSS severity7.5
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Qualcomm Snapdragon modem firmware allows remote attackers to interrupt modem service without authentication. Qualcomm has not published the missing authorization check or the request or message that triggers the failure. The flaw requires no privileges or user interaction and causes a transient modem service interruption without reported data exposure or modification.

The record

CVE
CVE-2022-40521
Published
Jun 6, 2023
Updated
Aug 3, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-287, CWE-285
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=9205 LTE Modem
  3. Affected versionversion=9206 LTE Modem
  4. Affected versionversion=9207 LTE Modem
  5. Affected versionversion=APQ8017
  6. Affected versionversion=APQ8037
  7. Affected versionversion=AQT1000
  8. Affected versionversion=AR6003
  9. Affected versionversion=AR8035
  10. Affected versionversion=CSRA6620
  11. Affected versionversion=CSRA6640
  12. Affected versionversion=CSRB31024
  13. Affected versionversion=C-V2X 9150
  14. Affected versionversion=FastConnect 6200
  15. Affected versionversion=FastConnect 6700
  16. Affected versionversion=FastConnect 6800
  17. Affected versionversion=FastConnect 6900
  18. Affected versionversion=FastConnect 7800
  19. Affected versionversion=MDM8207
  20. Affected versionversion=MDM8215
  21. Affected versionversion=MDM8215M
  22. Affected versionversion=MDM8615M
  23. Affected versionversion=MDM9215
  24. Affected versionversion=MDM9230
  25. Affected versionversion=MDM9250
  26. Affected versionversion=MDM9310
  27. Affected versionversion=MDM9330
  28. Affected versionversion=MDM9615
  29. Affected versionversion=MDM9615M
  30. Affected versionversion=MDM9628
  31. Affected versionversion=MDM9630
  32. Affected versionversion=MDM9640
  33. Affected versionversion=MDM9650
  34. Affected versionversion=MSM8108
  35. Affected versionversion=MSM8209
  36. Affected versionversion=MSM8608
  37. Affected versionversion=MSM8909W
  38. Affected versionversion=MSM8996AU
  39. Affected versionversion=QCA4004
  40. Affected versionversion=QCA6174
  41. Affected versionversion=QCA6174A
  42. Affected versionversion=QCA6310
  43. Affected versionversion=QCA6320
  44. Affected versionversion=QCA6335
  45. Affected versionversion=QCA6391
  46. Affected versionversion=QCA6420
  47. Affected versionversion=QCA6421
  48. Affected versionversion=QCA6426
  49. Affected versionversion=QCA6430
  50. Affected versionversion=QCA6431
  51. Affected versionversion=QCA6436
  52. Affected versionversion=QCA6564A
  53. Affected versionversion=QCA6564AU
  54. Affected versionversion=QCA6574
  55. Affected versionversion=QCA6574A
  56. Affected versionversion=QCA6574AU
  57. Affected versionversion=QCA6584
  58. Affected versionversion=QCA6584AU
  59. Affected versionversion=QCA6595AU
  60. Affected versionversion=QCA6696
  61. Affected versionversion=QCA6698AQ
  62. Affected versionversion=QCA8081
  63. Affected versionversion=QCA8337
  64. Affected versionversion=QCA9367
  65. Affected versionversion=QCA9377
  66. Affected versionversion=QCM2290
  67. Affected versionversion=QCM4290
  68. Affected versionversion=QCM4325
  69. Affected versionversion=QCM4490
  70. Affected versionversion=QCM6125
  71. Affected versionversion=QCM6490
  72. Affected versionversion=QCN6024
  73. Affected versionversion=QCN9024
  74. Affected versionversion=QCS2290
  75. Affected versionversion=QCS410
  76. Affected versionversion=QCS4290
  77. Affected versionversion=QCS4490
  78. Affected versionversion=QCS610
  79. Affected versionversion=QCS6125
  80. Affected versionversion=QCS6490
  81. Affected versionversion=QCS8550
  82. Affected versionversion=QTS110
  83. Affected versionversion=Qualcomm 205 Mobile Platform
  84. Affected versionversion=Qualcomm 215 Mobile Platform
  85. Affected versionversion=Robotics RB3 Platform
  86. Affected versionversion=SC8180X+SDX55
  87. Affected versionversion=SD 455
  88. Affected versionversion=SD460
  89. Affected versionversion=SD626
  90. Affected versionversion=SD660
  91. Affected versionversion=SD662
  92. Affected versionversion=SD670
  93. Affected versionversion=SD675
  94. Affected versionversion=SD 675
  95. Affected versionversion=SD730
  96. Affected versionversion=SD820
  97. Affected versionversion=SD835
  98. Affected versionversion=SD855
  99. Affected versionversion=SD865 5G
  100. Affected versionversion=SD888
  101. Affected versionversion=SDM429W
  102. Affected versionversion=SDX55
  103. Affected versionversion=SDX57M
  104. Affected versionversion=SG4150P
  105. Affected versionversion=SM4450
  106. Affected versionversion=SM6250
  107. Affected versionversion=SM6250P
  108. Affected versionversion=SM7250P
  109. Affected versionversion=SM7315
  110. Affected versionversion=SM7325P
  111. Affected versionversion=Smart Audio 200 Platform
  112. Affected versionversion=Smart Audio 400 Platform
  113. Affected versionversion=Smart Display 200 Platform (APQ5053-AA)
  114. Affected versionversion=Snapdragon 1100 Wearable Platform
  115. Affected versionversion=Snapdragon 1200 Wearable Platform
  116. Affected versionversion=Snapdragon 208 Processor
  117. Affected versionversion=Snapdragon 210 Processor
  118. Affected versionversion=Snapdragon 212 Mobile Platform
  119. Affected versionversion=Snapdragon 425 Mobile Platform
  120. Affected versionversion=Snapdragon 427 Mobile Platform
  121. Affected versionversion=Snapdragon 429 Mobile Platform
  122. Affected versionversion=Snapdragon 430 Mobile Platform
  123. Affected versionversion=Snapdragon 435 Mobile Platform
  124. Affected versionversion=Snapdragon 439 Mobile Platform
  125. Affected versionversion=Snapdragon 450 Mobile Platform
  126. Affected versionversion=Snapdragon 460 Mobile Platform
  127. Affected versionversion=Snapdragon 480 5G Mobile Platform
  128. Affected versionversion=Snapdragon 480+ 5G Mobile Platform (SM4350-AC)
  129. Affected versionversion=Snapdragon 4 Gen 1 Mobile Platform
  130. Affected versionversion=Snapdragon 625 Mobile Platform
  131. Affected versionversion=Snapdragon 626 Mobile Platform
  132. Affected versionversion=Snapdragon 630 Mobile Platform
  133. Affected versionversion=Snapdragon 632 Mobile Platform
  134. Affected versionversion=Snapdragon 636 Mobile Platform
  135. Affected versionversion=Snapdragon 660 Mobile Platform
  136. Affected versionversion=Snapdragon 662 Mobile Platform
  137. Affected versionversion=Snapdragon 665 Mobile Platform
  138. Affected versionversion=Snapdragon 670 Mobile Platform
  139. Affected versionversion=Snapdragon 675 Mobile Platform
  140. Affected versionversion=Snapdragon 678 Mobile Platform (SM6150-AC)
  141. Affected versionversion=Snapdragon 680 4G Mobile Platform
  142. Affected versionversion=Snapdragon 685 4G Mobile Platform (SM6225-AD)
  143. Affected versionversion=Snapdragon 690 5G Mobile Platform
  144. Affected versionversion=Snapdragon 695 5G Mobile Platform
  145. Affected versionversion=Snapdragon 710 Mobile Platform
  146. Affected versionversion=Snapdragon 712 Mobile Platform
  147. Affected versionversion=Snapdragon 720G Mobile Platform
  148. Affected versionversion=Snapdragon 730G Mobile Platform (SM7150-AB)
  149. Affected versionversion=Snapdragon 730 Mobile Platform (SM7150-AA)
  150. Affected versionversion=Snapdragon 732G Mobile Platform (SM7150-AC)
  151. Affected versionversion=Snapdragon 750G 5G Mobile Platform
  152. Affected versionversion=Snapdragon 765 5G Mobile Platform (SM7250-AA)
  153. Affected versionversion=Snapdragon 765G 5G Mobile Platform (SM7250-AB)
  154. Affected versionversion=Snapdragon 768G 5G Mobile Platform (SM7250-AC)
  155. Affected versionversion=Snapdragon 778G 5G Mobile Platform
  156. Affected versionversion=Snapdragon 778G+ 5G Mobile Platform (SM7325-AE)
  157. Affected versionversion=Snapdragon 780G 5G Mobile Platform
  158. Affected versionversion=Snapdragon 782G Mobile Platform (SM7325-AF)
  159. Affected versionversion=Snapdragon 7c Compute Platform (SC7180-AC)
  160. Affected versionversion=Snapdragon 7c Gen 2 Compute Platform (SC7180-AD) "Rennell Pro"
  161. Affected versionversion=Snapdragon 7c+ Gen 3 Compute
  162. Affected versionversion=Snapdragon 820 Automotive Platform
  163. Affected versionversion=Snapdragon 835 Mobile PC Platform
  164. Affected versionversion=Snapdragon 845 Mobile Platform
  165. Affected versionversion=Snapdragon 850 Mobile Compute Platform
  166. Affected versionversion=Snapdragon 855+/860 Mobile Platform (SM8150-AC)
  167. Affected versionversion=Snapdragon 855 Mobile Platform
  168. Affected versionversion=Snapdragon 865 5G Mobile Platform
  169. Affected versionversion=Snapdragon 865+ 5G Mobile Platform (SM8250-AB)
  170. Affected versionversion=Snapdragon 870 5G Mobile Platform (SM8250-AC)
  171. Affected versionversion=Snapdragon 888 5G Mobile Platform
  172. Affected versionversion=Snapdragon 888+ 5G Mobile Platform (SM8350-AC)
  173. Affected versionversion=Snapdragon 8c Compute Platform (SC8180X-AD) "Poipu Lite"
  174. Affected versionversion=Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite"
  175. Affected versionversion=Snapdragon 8cx Compute Platform (SC8180X-AA, AB)
  176. Affected versionversion=Snapdragon 8cx Compute Platform (SC8180XP-AC, AF) "Poipu Pro"
  177. Affected versionversion=Snapdragon 8cx Gen 2 5G Compute Platform (SC8180X-AC, AF) "Poipu Pro"
  178. Affected versionversion=Snapdragon 8cx Gen 2 5G Compute Platform (SC8180XP-AA, AB)
  179. Affected versionversion=Snapdragon 8 Gen 1 Mobile Platform
  180. Affected versionversion=Snapdragon 8+ Gen 1 Mobile Platform
  181. Affected versionversion=Snapdragon Auto 4G Modem
  182. Affected versionversion=Snapdragon Auto 5G Modem-RF
  183. Affected versionversion=Snapdragon W5+ Gen 1 Wearable Platform
  184. Affected versionversion=Snapdragon Wear 1300 Platform
  185. Affected versionversion=Snapdragon Wear 2100 Platform
  186. Affected versionversion=Snapdragon Wear 2500 Platform
  187. Affected versionversion=Snapdragon Wear 3100 Platform
  188. Affected versionversion=Snapdragon Wear 4100+ Platform
  189. Affected versionversion=Snapdragon X12 LTE Modem
  190. Affected versionversion=Snapdragon X20 LTE Modem
  191. Affected versionversion=Snapdragon X24 LTE Modem
  192. Affected versionversion=Snapdragon X50 5G Modem-RF System
  193. Affected versionversion=Snapdragon X55 5G Modem-RF System
  194. Affected versionversion=Snapdragon X5 LTE Modem
  195. Affected versionversion=Snapdragon X65 5G Modem-RF System
  196. Affected versionversion=Snapdragon X70 Modem-RF System
  197. Affected versionversion=Snapdragon XR1 Platform
  198. Affected versionversion=Snapdragon XR2 5G Platform
  199. Affected versionversion=SW5100
  200. Affected versionversion=SW5100P
  201. Affected versionversion=SXR1120
  202. Affected versionversion=SXR2130
  203. Affected versionversion=Vision Intelligence 100 Platform (APQ8053-AA)
  204. Affected versionversion=Vision Intelligence 200 Platform (APQ8053-AC)
  205. Affected versionversion=Vision Intelligence 300 Platform
  206. Affected versionversion=Vision Intelligence 400 Platform
  207. Affected versionversion=WCD9306
  208. Affected versionversion=WCD9326
  209. Affected versionversion=WCD9330
  210. Affected versionversion=WCD9335
  211. Affected versionversion=WCD9340
  212. Affected versionversion=WCD9341
  213. Affected versionversion=WCD9360
  214. Affected versionversion=WCD9370
  215. Affected versionversion=WCD9371
  216. Affected versionversion=WCD9375
  217. Affected versionversion=WCD9380
  218. Affected versionversion=WCD9385
  219. Affected versionversion=WCN3610
  220. Affected versionversion=WCN3615
  221. Affected versionversion=WCN3620
  222. Affected versionversion=WCN3660
  223. Affected versionversion=WCN3660B
  224. Affected versionversion=WCN3680
  225. Affected versionversion=WCN3680B
  226. Affected versionversion=WCN3910
  227. Affected versionversion=WCN3950
  228. Affected versionversion=WCN3980
  229. Affected versionversion=WCN3988
  230. Affected versionversion=WCN3990
  231. Affected versionversion=WCN6740
  232. Affected versionversion=WSA8810
  233. Affected versionversion=WSA8815
  234. Affected versionversion=WSA8830
  235. Affected versionversion=WSA8832
  236. Affected versionversion=WSA8835

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=315 5G IoT Modem; version=9205 LTE Modem; version=9206 LTE Modem; version=9207 LTE Modem; version=APQ8017; version=APQ8037; version=AQT1000; version=AR6003; version=AR8035; version=CSRA6620; version=CSRA6640; version=CSRB31024; version=C-V2X 9150; version=FastConnect 6200; version=FastConnect 6700; version=FastConnect 6800; version=FastConnect 6900; version=FastConnect 7800; version=MDM8207; version=MDM8215; version=MDM8215M; version=MDM8615M; version=MDM9215; version=MDM9230; version=MDM9250; version=MDM9310; version=MDM9330; version=MDM9615; version=MDM9615M; version=MDM9628; version=MDM9630; version=MDM9640; version=MDM9650; version=MSM8108; version=MSM8209; version=MSM8608; version=MSM8909W; version=MSM8996AU; version=QCA4004; version=QCA6174; version=QCA6174A; version=QCA6310; version=QCA6320; version=QCA6335; version=QCA6391; version=QCA6420; version=QCA6421; version=QCA6426; version=QCA6430; version=QCA6431; version=QCA6436; version=QCA6564A; version=QCA6564AU; version=QCA6574; version=QCA6574A; version=QCA6574AU; version=QCA6584; version=QCA6584AU; version=QCA6595AU; version=QCA6696; version=QCA6698AQ; version=QCA8081; version=QCA8337; version=QCA9367; version=QCA9377; version=QCM2290; version=QCM4290; version=QCM4325; version=QCM4490; version=QCM6125; version=QCM6490; version=QCN6024; version=QCN9024; version=QCS2290; version=QCS410; version=QCS4290; version=QCS4490; version=QCS610; version=QCS6125; version=QCS6490; version=QCS8550; version=QTS110; version=Qualcomm 205 Mobile Platform; version=Qualcomm 215 Mobile Platform; version=Robotics RB3 Platform; version=SC8180X+SDX55; version=SD 455; version=SD460; version=SD626; version=SD660; version=SD662; version=SD670; version=SD675; version=SD 675; version=SD730; version=SD820; version=SD835; version=SD855; version=SD865 5G; version=SD888; version=SDM429W; version=SDX55; version=SDX57M; version=SG4150P; version=SM4450; version=SM6250; version=SM6250P; version=SM7250P; version=SM7315; version=SM7325P; version=Smart Audio 200 Platform; version=Smart Audio 400 Platform; version=Smart Display 200 Platform (APQ5053-AA); version=Snapdragon 1100 Wearable Platform; version=Snapdragon 1200 Wearable Platform; version=Snapdragon 208 Processor; version=Snapdragon 210 Processor; version=Snapdragon 212 Mobile Platform; version=Snapdragon 425 Mobile Platform; version=Snapdragon 427 Mobile Platform; version=Snapdragon 429 Mobile Platform; version=Snapdragon 430 Mobile Platform; version=Snapdragon 435 Mobile Platform; version=Snapdragon 439 Mobile Platform; version=Snapdragon 450 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 625 Mobile Platform; version=Snapdragon 626 Mobile Platform; version=Snapdragon 630 Mobile Platform; version=Snapdragon 632 Mobile Platform; version=Snapdragon 636 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 835 Mobile PC 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 8 Gen 1 Mobile Platform; version=Snapdragon 8+ Gen 1 Mobile Platform; version=Snapdragon Auto 4G Modem; version=Snapdragon Auto 5G Modem-RF; version=Snapdragon W5+ Gen 1 Wearable Platform; version=Snapdragon Wear 1300 Platform; version=Snapdragon Wear 2100 Platform; version=Snapdragon Wear 2500 Platform; version=Snapdragon Wear 3100 Platform; version=Snapdragon Wear 4100+ Platform; version=Snapdragon X12 LTE Modem; version=Snapdragon X20 LTE Modem; version=Snapdragon X24 LTE Modem; version=Snapdragon X50 5G Modem-RF System; version=Snapdragon X55 5G Modem-RF System; version=Snapdragon X5 LTE Modem; version=Snapdragon X65 5G Modem-RF System; version=Snapdragon X70 Modem-RF System; version=Snapdragon XR1 Platform; version=Snapdragon XR2 5G Platform; version=SW5100; version=SW5100P; version=SXR1120; version=SXR2130; 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=WCD9306; version=WCD9326; version=WCD9330; version=WCD9335; version=WCD9340; version=WCD9341; version=WCD9360; version=WCD9370; version=WCD9371; version=WCD9375; version=WCD9380; version=WCD9385; version=WCN3610; version=WCN3615; version=WCN3620; version=WCN3660; version=WCN3660B; version=WCN3680; version=WCN3680B; version=WCN3910; version=WCN3950; version=WCN3980; version=WCN3988; version=WCN3990; version=WCN6740; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8832; version=WSA8835

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-287Improper Authentication
CWE-285Improper Authorization

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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