CVE-2022-33237Network attack vector

Transient denial of service via PPE buffer over-read

Published Nov 15, 2022 · Updated Apr 22, 2025

A buffer over-read in Qualcomm Snapdragon WLAN firmware allows remote attackers to cause a transient service interruption while processing a PPE threshold. PPE-threshold handling reads beyond the available input buffer because the firmware fails to enforce the buffer boundary before reading the threshold. Network reachability without prior authentication is sufficient, and the documented consequence is temporary WLAN service interruption rather than data access or code execution.

CVSS severity7.5
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A buffer over-read in Qualcomm Snapdragon WLAN firmware allows remote attackers to cause a transient service interruption while processing a PPE threshold. PPE-threshold handling reads beyond the available input buffer because the firmware fails to enforce the buffer boundary before reading the threshold. Network reachability without prior authentication is sufficient, and the documented consequence is temporary WLAN service interruption rather than data access or code execution.

The record

CVE
CVE-2022-33237
Published
Nov 15, 2022
Updated
Apr 22, 2025
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-125, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 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=AQT1000
  2. Affected versionversion=AR8031
  3. Affected versionversion=AR8035
  4. Affected versionversion=AR9380
  5. Affected versionversion=CSR8811
  6. Affected versionversion=CSRA6620
  7. Affected versionversion=CSRA6640
  8. Affected versionversion=CSRB31024
  9. Affected versionversion=IPQ4018
  10. Affected versionversion=IPQ4028
  11. Affected versionversion=IPQ4029
  12. Affected versionversion=IPQ5010
  13. Affected versionversion=IPQ5018
  14. Affected versionversion=IPQ5028
  15. Affected versionversion=IPQ6000
  16. Affected versionversion=IPQ6010
  17. Affected versionversion=IPQ6018
  18. Affected versionversion=IPQ6028
  19. Affected versionversion=IPQ8064
  20. Affected versionversion=IPQ8069
  21. Affected versionversion=IPQ8070
  22. Affected versionversion=IPQ8070A
  23. Affected versionversion=IPQ8071
  24. Affected versionversion=IPQ8071A
  25. Affected versionversion=IPQ8072
  26. Affected versionversion=IPQ8072A
  27. Affected versionversion=IPQ8074
  28. Affected versionversion=IPQ8074A
  29. Affected versionversion=IPQ8076
  30. Affected versionversion=IPQ8076A
  31. Affected versionversion=IPQ8078
  32. Affected versionversion=IPQ8078A
  33. Affected versionversion=IPQ8173
  34. Affected versionversion=IPQ8174
  35. Affected versionversion=IPQ9008
  36. Affected versionversion=MDM9206
  37. Affected versionversion=MDM9607
  38. Affected versionversion=MDM9628
  39. Affected versionversion=PMP8074
  40. Affected versionversion=QAM8295P
  41. Affected versionversion=QCA0000
  42. Affected versionversion=QCA1062
  43. Affected versionversion=QCA1064
  44. Affected versionversion=QCA2062
  45. Affected versionversion=QCA2064
  46. Affected versionversion=QCA2065
  47. Affected versionversion=QCA2066
  48. Affected versionversion=QCA4024
  49. Affected versionversion=QCA6174A
  50. Affected versionversion=QCA6310
  51. Affected versionversion=QCA6335
  52. Affected versionversion=QCA6390
  53. Affected versionversion=QCA6391
  54. Affected versionversion=QCA6420
  55. Affected versionversion=QCA6421
  56. Affected versionversion=QCA6426
  57. Affected versionversion=QCA6428
  58. Affected versionversion=QCA6430
  59. Affected versionversion=QCA6431
  60. Affected versionversion=QCA6436
  61. Affected versionversion=QCA6438
  62. Affected versionversion=QCA6554A
  63. Affected versionversion=QCA6564AU
  64. Affected versionversion=QCA6574
  65. Affected versionversion=QCA6574A
  66. Affected versionversion=QCA6574AU
  67. Affected versionversion=QCA6584AU
  68. Affected versionversion=QCA6595
  69. Affected versionversion=QCA6595AU
  70. Affected versionversion=QCA6694
  71. Affected versionversion=QCA6696
  72. Affected versionversion=QCA8072
  73. Affected versionversion=QCA8075
  74. Affected versionversion=QCA8081
  75. Affected versionversion=QCA8082
  76. Affected versionversion=QCA8084
  77. Affected versionversion=QCA8085
  78. Affected versionversion=QCA8337
  79. Affected versionversion=QCA8386
  80. Affected versionversion=QCA9367
  81. Affected versionversion=QCA9377
  82. Affected versionversion=QCA9888
  83. Affected versionversion=QCA9889
  84. Affected versionversion=QCA9898
  85. Affected versionversion=QCA9980
  86. Affected versionversion=QCA9984
  87. Affected versionversion=QCA9990
  88. Affected versionversion=QCA9992
  89. Affected versionversion=QCA9994
  90. Affected versionversion=QCC5100
  91. Affected versionversion=QCM2290
  92. Affected versionversion=QCM4290
  93. Affected versionversion=QCM6125
  94. Affected versionversion=QCM6490
  95. Affected versionversion=QCN5021
  96. Affected versionversion=QCN5022
  97. Affected versionversion=QCN5024
  98. Affected versionversion=QCN5052
  99. Affected versionversion=QCN5054
  100. Affected versionversion=QCN5122
  101. Affected versionversion=QCN5124
  102. Affected versionversion=QCN5152
  103. Affected versionversion=QCN5154
  104. Affected versionversion=QCN5164
  105. Affected versionversion=QCN6023
  106. Affected versionversion=QCN6024
  107. Affected versionversion=QCN6100
  108. Affected versionversion=QCN6102
  109. Affected versionversion=QCN6112
  110. Affected versionversion=QCN6122
  111. Affected versionversion=QCN6132
  112. Affected versionversion=QCN7605
  113. Affected versionversion=QCN7606
  114. Affected versionversion=QCN9000
  115. Affected versionversion=QCN9001
  116. Affected versionversion=QCN9002
  117. Affected versionversion=QCN9003
  118. Affected versionversion=QCN9011
  119. Affected versionversion=QCN9012
  120. Affected versionversion=QCN9022
  121. Affected versionversion=QCN9024
  122. Affected versionversion=QCN9070
  123. Affected versionversion=QCN9072
  124. Affected versionversion=QCN9074
  125. Affected versionversion=QCN9100
  126. Affected versionversion=QCN9274
  127. Affected versionversion=QCS2290
  128. Affected versionversion=QCS405
  129. Affected versionversion=QCS410
  130. Affected versionversion=QCS4290
  131. Affected versionversion=QCS603
  132. Affected versionversion=QCS605
  133. Affected versionversion=QCS610
  134. Affected versionversion=QCS6125
  135. Affected versionversion=QCS6490
  136. Affected versionversion=QCX315
  137. Affected versionversion=QRB5165
  138. Affected versionversion=QRB5165M
  139. Affected versionversion=QRB5165N
  140. Affected versionversion=QSM8250
  141. Affected versionversion=QSM8350
  142. Affected versionversion=SA4150P
  143. Affected versionversion=SA4155P
  144. Affected versionversion=SA415M
  145. Affected versionversion=SA515M
  146. Affected versionversion=SA6145P
  147. Affected versionversion=SA6150P
  148. Affected versionversion=SA6155
  149. Affected versionversion=SA6155P
  150. Affected versionversion=SA8145P
  151. Affected versionversion=SA8150P
  152. Affected versionversion=SA8155
  153. Affected versionversion=SA8155P
  154. Affected versionversion=SA8195P
  155. Affected versionversion=SA8295P
  156. Affected versionversion=SC8180X+SDX55
  157. Affected versionversion=SD460
  158. Affected versionversion=SD480
  159. Affected versionversion=SD660
  160. Affected versionversion=SD662
  161. Affected versionversion=SD665
  162. Affected versionversion=SD670
  163. Affected versionversion=SD675
  164. Affected versionversion=SD 675
  165. Affected versionversion=SD678
  166. Affected versionversion=SD680
  167. Affected versionversion=SD690 5G
  168. Affected versionversion=SD695
  169. Affected versionversion=SD710
  170. Affected versionversion=SD712
  171. Affected versionversion=SD720G
  172. Affected versionversion=SD730
  173. Affected versionversion=SD750G
  174. Affected versionversion=SD765
  175. Affected versionversion=SD765G
  176. Affected versionversion=SD768G
  177. Affected versionversion=SD778G
  178. Affected versionversion=SD780G
  179. Affected versionversion=SD7c
  180. Affected versionversion=SD845
  181. Affected versionversion=SD850
  182. Affected versionversion=SD855
  183. Affected versionversion=SD865 5G
  184. Affected versionversion=SD870
  185. Affected versionversion=SD888
  186. Affected versionversion=SD888 5G
  187. Affected versionversion=SD 8CX
  188. Affected versionversion=SD 8cx Gen2
  189. Affected versionversion=SD 8cx Gen3
  190. Affected versionversion=SD 8 Gen1 5G
  191. Affected versionversion=SDX20M
  192. Affected versionversion=SDX50M
  193. Affected versionversion=SDX55
  194. Affected versionversion=SDX55M
  195. Affected versionversion=SDX65
  196. Affected versionversion=SDXR1
  197. Affected versionversion=SDXR2 5G
  198. Affected versionversion=SM4125
  199. Affected versionversion=SM4375
  200. Affected versionversion=SM6250
  201. Affected versionversion=SM6250P
  202. Affected versionversion=SM7250P
  203. Affected versionversion=SM7315
  204. Affected versionversion=SM7325P
  205. Affected versionversion=SW5100
  206. Affected versionversion=SW5100P
  207. Affected versionversion=SXR2150P
  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=WCN3910
  220. Affected versionversion=WCN3950
  221. Affected versionversion=WCN3980
  222. Affected versionversion=WCN3988
  223. Affected versionversion=WCN3990
  224. Affected versionversion=WCN3991
  225. Affected versionversion=WCN3998
  226. Affected versionversion=WCN3999
  227. Affected versionversion=WCN6740
  228. Affected versionversion=WCN6750
  229. Affected versionversion=WCN6850
  230. Affected versionversion=WCN6851
  231. Affected versionversion=WCN6855
  232. Affected versionversion=WCN6856
  233. Affected versionversion=WCN7850
  234. Affected versionversion=WCN7851
  235. Affected versionversion=WSA8810
  236. Affected versionversion=WSA8815
  237. Affected versionversion=WSA8830
  238. Affected versionversion=WSA8835

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=AQT1000; version=AR8031; version=AR8035; version=AR9380; version=CSR8811; version=CSRA6620; version=CSRA6640; version=CSRB31024; version=IPQ4018; version=IPQ4028; version=IPQ4029; version=IPQ5010; version=IPQ5018; version=IPQ5028; version=IPQ6000; version=IPQ6010; version=IPQ6018; version=IPQ6028; version=IPQ8064; version=IPQ8069; version=IPQ8070; version=IPQ8070A; version=IPQ8071; version=IPQ8071A; version=IPQ8072; version=IPQ8072A; version=IPQ8074; version=IPQ8074A; version=IPQ8076; version=IPQ8076A; version=IPQ8078; version=IPQ8078A; version=IPQ8173; version=IPQ8174; version=IPQ9008; version=MDM9206; version=MDM9607; version=MDM9628; version=PMP8074; version=QAM8295P; version=QCA0000; version=QCA1062; version=QCA1064; version=QCA2062; version=QCA2064; version=QCA2065; version=QCA2066; version=QCA4024; version=QCA6174A; version=QCA6310; version=QCA6335; version=QCA6390; version=QCA6391; version=QCA6420; version=QCA6421; version=QCA6426; version=QCA6428; version=QCA6430; version=QCA6431; version=QCA6436; version=QCA6438; version=QCA6554A; version=QCA6564AU; version=QCA6574; version=QCA6574A; version=QCA6574AU; version=QCA6584AU; version=QCA6595; version=QCA6595AU; version=QCA6694; version=QCA6696; version=QCA8072; version=QCA8075; version=QCA8081; version=QCA8082; version=QCA8084; version=QCA8085; version=QCA8337; version=QCA8386; version=QCA9367; version=QCA9377; version=QCA9888; version=QCA9889; version=QCA9898; version=QCA9980; version=QCA9984; version=QCA9990; version=QCA9992; version=QCA9994; version=QCC5100; version=QCM2290; version=QCM4290; version=QCM6125; version=QCM6490; version=QCN5021; version=QCN5022; version=QCN5024; version=QCN5052; version=QCN5054; version=QCN5122; version=QCN5124; version=QCN5152; version=QCN5154; version=QCN5164; version=QCN6023; version=QCN6024; version=QCN6100; version=QCN6102; version=QCN6112; version=QCN6122; version=QCN6132; version=QCN7605; version=QCN7606; version=QCN9000; version=QCN9001; version=QCN9002; version=QCN9003; version=QCN9011; version=QCN9012; version=QCN9022; version=QCN9024; version=QCN9070; version=QCN9072; version=QCN9074; version=QCN9100; version=QCN9274; version=QCS2290; version=QCS405; version=QCS410; version=QCS4290; version=QCS603; version=QCS605; version=QCS610; version=QCS6125; version=QCS6490; version=QCX315; version=QRB5165; version=QRB5165M; version=QRB5165N; version=QSM8250; version=QSM8350; version=SA4150P; version=SA4155P; version=SA415M; version=SA515M; version=SA6145P; version=SA6150P; version=SA6155; version=SA6155P; version=SA8145P; version=SA8150P; version=SA8155; version=SA8155P; version=SA8195P; version=SA8295P; version=SC8180X+SDX55; version=SD460; version=SD480; version=SD660; version=SD662; version=SD665; version=SD670; version=SD675; version=SD 675; version=SD678; version=SD680; version=SD690 5G; version=SD695; version=SD710; version=SD712; version=SD720G; version=SD730; version=SD750G; version=SD765; version=SD765G; version=SD768G; version=SD778G; version=SD780G; version=SD7c; version=SD845; version=SD850; version=SD855; version=SD865 5G; version=SD870; version=SD888; version=SD888 5G; version=SD 8CX; version=SD 8cx Gen2; version=SD 8cx Gen3; version=SD 8 Gen1 5G; version=SDX20M; version=SDX50M; version=SDX55; version=SDX55M; version=SDX65; version=SDXR1; version=SDXR2 5G; version=SM4125; version=SM4375; version=SM6250; version=SM6250P; version=SM7250P; version=SM7315; version=SM7325P; version=SW5100; version=SW5100P; version=SXR2150P; version=WCD9326; version=WCD9330; version=WCD9335; version=WCD9340; version=WCD9341; version=WCD9360; version=WCD9370; version=WCD9371; version=WCD9375; version=WCD9380; version=WCD9385; version=WCN3910; version=WCN3950; version=WCN3980; version=WCN3988; version=WCN3990; version=WCN3991; version=WCN3998; version=WCN3999; version=WCN6740; version=WCN6750; version=WCN6850; version=WCN6851; version=WCN6855; version=WCN6856; version=WCN7850; version=WCN7851; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8835

Published CVSS scores

7.5QualcommCVSS: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-125Out-of-bounds Read
T1499Endpoint 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

See the directory against your own environment.

Your stack

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