CVE-2023-33077

Memory corruption via unchecked authorization-token conversion

Published Feb 6, 2024 · Updated Aug 22, 2024

Classic buffer overflow in Qualcomm Snapdragon HLOS allows local users with high privileges to corrupt memory using an authorization token. During conversion from the authorization token to a HIDL vector, HLOS copies input without validating its size, corrupting memory. Reaching the conversion requires local access and high privileges; Qualcomm does not disclose whether corruption yields code execution, data access, or a crash.

CVSS severity6.7
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Classic buffer overflow in Qualcomm Snapdragon HLOS allows local users with high privileges to corrupt memory using an authorization token. During conversion from the authorization token to a HIDL vector, HLOS copies input without validating its size, corrupting memory. Reaching the conversion requires local access and high privileges; Qualcomm does not disclose whether corruption yields code execution, data access, or a crash.

The record

CVE
CVE-2023-33077
Published
Feb 6, 2024
Updated
Aug 22, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-120
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Feb 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 22, 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=aqt1000
  2. Affected versionversion=AQT1000
  3. Affected versionversion=ar8035
  4. Affected versionversion=AR8035
  5. Affected versionversion=c-v2x-9150
  6. Affected versionversion=C-V2X 9150
  7. Affected versionversion=fastconnect_6200
  8. Affected versionversion=FastConnect 6200
  9. Affected versionversion=fastconnect_6800
  10. Affected versionversion=FastConnect 6800
  11. Affected versionversion=fastconnect_6900
  12. Affected versionversion=FastConnect 6900
  13. Affected versionversion=fastconnect7800
  14. Affected versionversion=FastConnect 7800
  15. Affected versionversion=QAM8255P
  16. Affected versionversion=qam8295p
  17. Affected versionversion=QAM8295P
  18. Affected versionversion=qam8650p
  19. Affected versionversion=QAM8650P
  20. Affected versionversion=qam8775p
  21. Affected versionversion=QAM8775P
  22. Affected versionversion=qamsrv1h
  23. Affected versionversion=QAMSRV1H
  24. Affected versionversion=qamsrv1m
  25. Affected versionversion=QAMSRV1M
  26. Affected versionversion=qca6310
  27. Affected versionversion=QCA6310
  28. Affected versionversion=qca6320
  29. Affected versionversion=QCA6320
  30. Affected versionversion=qca6391
  31. Affected versionversion=QCA6391
  32. Affected versionversion=qca6420
  33. Affected versionversion=QCA6420
  34. Affected versionversion=qca6426
  35. Affected versionversion=QCA6426
  36. Affected versionversion=qca6430
  37. Affected versionversion=QCA6430
  38. Affected versionversion=qca6436
  39. Affected versionversion=QCA6436
  40. Affected versionversion=qca6574au
  41. Affected versionversion=QCA6574AU
  42. Affected versionversion=qca6584au
  43. Affected versionversion=QCA6584AU
  44. Affected versionversion=qca6696
  45. Affected versionversion=QCA6696
  46. Affected versionversion=qca6698aq
  47. Affected versionversion=QCA6698AQ
  48. Affected versionversion=qca8081
  49. Affected versionversion=QCA8081
  50. Affected versionversion=qca8337
  51. Affected versionversion=QCA8337
  52. Affected versionversion=qcc710
  53. Affected versionversion=QCC710
  54. Affected versionversion=qcn6224
  55. Affected versionversion=QCN6224
  56. Affected versionversion=qcn6274
  57. Affected versionversion=QCN6274
  58. Affected versionversion=qcn9074
  59. Affected versionversion=QCN9074
  60. Affected versionversion=qcs410
  61. Affected versionversion=QCS410
  62. Affected versionversion=qcs610
  63. Affected versionversion=QCS610
  64. Affected versionversion=qcs8155
  65. Affected versionversion=QCS8155
  66. Affected versionversion=qfw7114
  67. Affected versionversion=QFW7114
  68. Affected versionversion=qfw7124
  69. Affected versionversion=QFW7124
  70. Affected versionversion=qualcommm_video_collaboration_vc3_platform
  71. Affected versionversion=Qualcomm Video Collaboration VC1 Platform
  72. Affected versionversion=qualcomm_video_collaboration_vc3_platform
  73. Affected versionversion=Qualcomm Video Collaboration VC3 Platform
  74. Affected versionversion=sa4150p
  75. Affected versionversion=SA4150P
  76. Affected versionversion=sa4155p
  77. Affected versionversion=SA4155P
  78. Affected versionversion=sa6145p
  79. Affected versionversion=SA6145P
  80. Affected versionversion=sa6150p
  81. Affected versionversion=SA6150P
  82. Affected versionversion=sa6155p
  83. Affected versionversion=SA6155P
  84. Affected versionversion=sa8145p
  85. Affected versionversion=SA8145P
  86. Affected versionversion=sa8150p
  87. Affected versionversion=SA8150P
  88. Affected versionversion=sa8155p
  89. Affected versionversion=SA8155P
  90. Affected versionversion=sa8195p
  91. Affected versionversion=SA8195P
  92. Affected versionversion=sa8255p
  93. Affected versionversion=SA8255P
  94. Affected versionversion=sa8295p
  95. Affected versionversion=SA8295P
  96. Affected versionversion=sa8650p
  97. Affected versionversion=SA8650P
  98. Affected versionversion=sa8770p
  99. Affected versionversion=SA8770P
  100. Affected versionversion=sa8775p
  101. Affected versionversion=SA8775P
  102. Affected versionversion=sa9000p
  103. Affected versionversion=SA9000P
  104. Affected versionversion=sd670
  105. Affected versionversion=SD670
  106. Affected versionversion=sd835
  107. Affected versionversion=SD835
  108. Affected versionversion=sd855
  109. Affected versionversion=SD855
  110. Affected versionversion=sd865_5g
  111. Affected versionversion=SD865 5G
  112. Affected versionversion=sdx55
  113. Affected versionversion=SDX55
  114. Affected versionversion=snapdragon_670_mobile_platform
  115. Affected versionversion=Snapdragon 670 Mobile Platform
  116. Affected versionversion=snapdragon_710_mobile_platform
  117. Affected versionversion=Snapdragon 710 Mobile Platform
  118. Affected versionversion=Snapdragon 835 Mobile PC Platform
  119. Affected versionversion=snapdragon_835_mobile_platform
  120. Affected versionversion=Snapdragon 855+/860 Mobile Platform (SM8150-AC)
  121. Affected versionversion=snapdragon_855_mobile_platform
  122. Affected versionversion=Snapdragon 855 Mobile Platform
  123. Affected versionversion=snapdragon_855_plus_5g_mobile_platform\/sm8250-ac\/
  124. Affected versionversion=Snapdragon 865 5G Mobile Platform
  125. Affected versionversion=Snapdragon 865+ 5G Mobile Platform (SM8250-AB)
  126. Affected versionversion=Snapdragon 870 5G Mobile Platform (SM8250-AC)
  127. Affected versionversion=snapdragon_870_5g_moden-rf_gen_2
  128. Affected versionversion=snapdragon_8_gen_1_mobile_platform
  129. Affected versionversion=Snapdragon 8 Gen 1 Mobile Platform
  130. Affected versionversion=Snapdragon Auto 5G Modem-RF Gen 2
  131. Affected versionversion=snapdragon_auto_5g_moden-rf_gen_2
  132. Affected versionversion=Snapdragon W5+ Gen 1 Wearable Platform
  133. Affected versionversion=snapdragon_w5_plus_gen_1_wearable_platform
  134. Affected versionversion=Snapdragon Wear 4100+ Platform
  135. Affected versionversion=snapdragon_wear_4100_plus_platform
  136. Affected versionversion=Snapdragon X55 5G Modem-RF System
  137. Affected versionversion=snapdragon_x55_5g_moden-rf_system
  138. Affected versionversion=snapdragon_x75_5g__modem-rf_system
  139. Affected versionversion=Snapdragon X75 5G Modem-RF System
  140. Affected versionversion=snapdragon_xr1_platform
  141. Affected versionversion=Snapdragon XR1 Platform
  142. Affected versionversion=snapdragon_xr2_5g_platform
  143. Affected versionversion=Snapdragon XR2 5G Platform
  144. Affected versionversion=srv1h
  145. Affected versionversion=SRV1H
  146. Affected versionversion=srv1m
  147. Affected versionversion=SRV1M
  148. Affected versionversion=sw5100
  149. Affected versionversion=SW5100
  150. Affected versionversion=sw5100p
  151. Affected versionversion=SW5100P
  152. Affected versionversion=sxr1120
  153. Affected versionversion=SXR1120
  154. Affected versionversion=sxr2130
  155. Affected versionversion=SXR2130
  156. Affected versionversion=WCD9326
  157. Affected versionversion=wcd9335
  158. Affected versionversion=WCD9335
  159. Affected versionversion=wcd9340
  160. Affected versionversion=WCD9340
  161. Affected versionversion=wcd9341
  162. Affected versionversion=WCD9341
  163. Affected versionversion=wcd9370
  164. Affected versionversion=WCD9370
  165. Affected versionversion=wcd9380
  166. Affected versionversion=WCD9380
  167. Affected versionversion=wcn3610
  168. Affected versionversion=WCN3610
  169. Affected versionversion=wcn3660b
  170. Affected versionversion=WCN3660B
  171. Affected versionversion=wcn3680b
  172. Affected versionversion=WCN3680B
  173. Affected versionversion=wcn3950
  174. Affected versionversion=WCN3950
  175. Affected versionversion=wcn3980
  176. Affected versionversion=WCN3980
  177. Affected versionversion=wcn3988
  178. Affected versionversion=WCN3988
  179. Affected versionversion=wcn3990
  180. Affected versionversion=WCN3990
  181. Affected versionversion=wsa8810
  182. Affected versionversion=WSA8810
  183. Affected versionversion=wsa8815
  184. Affected versionversion=WSA8815
  185. Affected versionversion=wsa8830
  186. Affected versionversion=WSA8830
  187. Affected versionversion=wsa8835
  188. Affected versionversion=WSA8835
  189. Affected versionversion=wxd9326

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Qualcomm · Snapdragonversion=aqt1000; version=AQT1000; version=ar8035; version=AR8035; version=c-v2x-9150; version=C-V2X 9150; version=fastconnect_6200; version=FastConnect 6200; version=fastconnect_6800; version=FastConnect 6800; version=fastconnect_6900; version=FastConnect 6900; version=fastconnect7800; version=FastConnect 7800; version=QAM8255P; version=qam8295p; version=QAM8295P; version=qam8650p; version=QAM8650P; version=qam8775p; version=QAM8775P; version=qamsrv1h; version=QAMSRV1H; version=qamsrv1m; version=QAMSRV1M; version=qca6310; version=QCA6310; version=qca6320; version=QCA6320; version=qca6391; version=QCA6391; version=qca6420; version=QCA6420; version=qca6426; version=QCA6426; version=qca6430; version=QCA6430; version=qca6436; version=QCA6436; version=qca6574au; version=QCA6574AU; version=qca6584au; version=QCA6584AU; version=qca6696; version=QCA6696; version=qca6698aq; version=QCA6698AQ; version=qca8081; version=QCA8081; version=qca8337; version=QCA8337; version=qcc710; version=QCC710; version=qcn6224; version=QCN6224; version=qcn6274; version=QCN6274; version=qcn9074; version=QCN9074; version=qcs410; version=QCS410; version=qcs610; version=QCS610; version=qcs8155; version=QCS8155; version=qfw7114; version=QFW7114; version=qfw7124; version=QFW7124; version=qualcommm_video_collaboration_vc3_platform; version=Qualcomm Video Collaboration VC1 Platform; version=qualcomm_video_collaboration_vc3_platform; version=Qualcomm Video Collaboration VC3 Platform; version=sa4150p; version=SA4150P; version=sa4155p; version=SA4155P; version=sa6145p; version=SA6145P; version=sa6150p; version=SA6150P; version=sa6155p; version=SA6155P; version=sa8145p; version=SA8145P; version=sa8150p; version=SA8150P; version=sa8155p; version=SA8155P; version=sa8195p; version=SA8195P; version=sa8255p; version=SA8255P; version=sa8295p; version=SA8295P; version=sa8650p; version=SA8650P; version=sa8770p; version=SA8770P; version=sa8775p; version=SA8775P; version=sa9000p; version=SA9000P; version=sd670; version=SD670; version=sd835; version=SD835; version=sd855; version=SD855; version=sd865_5g; version=SD865 5G; version=sdx55; version=SDX55; version=snapdragon_670_mobile_platform; version=Snapdragon 670 Mobile Platform; version=snapdragon_710_mobile_platform; version=Snapdragon 710 Mobile Platform; version=Snapdragon 835 Mobile PC Platform; version=snapdragon_835_mobile_platform; version=Snapdragon 855+/860 Mobile Platform (SM8150-AC); version=snapdragon_855_mobile_platform; version=Snapdragon 855 Mobile Platform; version=snapdragon_855_plus_5g_mobile_platform\/sm8250-ac\/; version=Snapdragon 865 5G Mobile Platform; version=Snapdragon 865+ 5G Mobile Platform (SM8250-AB); version=Snapdragon 870 5G Mobile Platform (SM8250-AC); version=snapdragon_870_5g_moden-rf_gen_2; version=snapdragon_8_gen_1_mobile_platform; version=Snapdragon 8 Gen 1 Mobile Platform; version=Snapdragon Auto 5G Modem-RF Gen 2; version=snapdragon_auto_5g_moden-rf_gen_2; version=Snapdragon W5+ Gen 1 Wearable Platform; version=snapdragon_w5_plus_gen_1_wearable_platform; version=Snapdragon Wear 4100+ Platform; version=snapdragon_wear_4100_plus_platform; version=Snapdragon X55 5G Modem-RF System; version=snapdragon_x55_5g_moden-rf_system; version=snapdragon_x75_5g__modem-rf_system; version=Snapdragon X75 5G Modem-RF System; version=snapdragon_xr1_platform; version=Snapdragon XR1 Platform; version=snapdragon_xr2_5g_platform; version=Snapdragon XR2 5G Platform; version=srv1h; version=SRV1H; version=srv1m; version=SRV1M; version=sw5100; version=SW5100; version=sw5100p; version=SW5100P; version=sxr1120; version=SXR1120; version=sxr2130; version=SXR2130; version=WCD9326; version=wcd9335; version=WCD9335; version=wcd9340; version=WCD9340; version=wcd9341; version=WCD9341; version=wcd9370; version=WCD9370; version=wcd9380; version=WCD9380; version=wcn3610; version=WCN3610; version=wcn3660b; version=WCN3660B; version=wcn3680b; version=WCN3680B; version=wcn3950; version=WCN3950; version=wcn3980; version=WCN3980; version=wcn3988; version=WCN3988; version=wcn3990; version=WCN3990; version=wsa8810; version=WSA8810; version=wsa8815; version=WSA8815; version=wsa8830; version=WSA8830; version=wsa8835; version=WSA8835; version=wxd9326

Published CVSS scores

6.7Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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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