CVE-2023-21666Public exploit

Local memory disclosure via graphics-pool buffer access

Published May 2, 2023 · Updated Aug 2, 2024

Memory corruption in Qualcomm Snapdragon Graphics allows local users to expose memory contents by accessing a graphics-pool buffer. Qualcomm identifies the graphics pool as the locus but does not disclose which allocation, lifetime, or reference-count operation mishandles the buffer. Local code execution is required; the public Adreno/KGSL artifact demonstrates data leakage, while additional corruption consequences remain undocumented.

CVSS severity8.4
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in Qualcomm Snapdragon Graphics allows local users to expose memory contents by accessing a graphics-pool buffer. Qualcomm identifies the graphics pool as the locus but does not disclose which allocation, lifetime, or reference-count operation mishandles the buffer. Local code execution is required; the public Adreno/KGSL artifact demonstrates data leakage, while additional corruption consequences remain undocumented.

The record

CVE
CVE-2023-21666
Published
May 2, 2023
Updated
Aug 2, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-401
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 2, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=9206 LTE Modem
  3. Affected versionversion=APQ8017
  4. Affected versionversion=AQT1000
  5. Affected versionversion=AR8031
  6. Affected versionversion=AR8035
  7. Affected versionversion=CSRA6620
  8. Affected versionversion=CSRA6640
  9. Affected versionversion=CSRB31024
  10. Affected versionversion=C-V2X 9150
  11. Affected versionversion=FastConnect 6200
  12. Affected versionversion=FastConnect 6800
  13. Affected versionversion=FastConnect 6900
  14. Affected versionversion=Flight RB5 5G Platform
  15. Affected versionversion=Home Hub 100 Platform
  16. Affected versionversion=MDM9250
  17. Affected versionversion=MDM9628
  18. Affected versionversion=MDM9650
  19. Affected versionversion=MSM8108
  20. Affected versionversion=MSM8209
  21. Affected versionversion=MSM8608
  22. Affected versionversion=MSM8909W
  23. Affected versionversion=QCA6174
  24. Affected versionversion=QCA6174A
  25. Affected versionversion=QCA6310
  26. Affected versionversion=QCA6320
  27. Affected versionversion=QCA6335
  28. Affected versionversion=QCA6391
  29. Affected versionversion=QCA6420
  30. Affected versionversion=QCA6421
  31. Affected versionversion=QCA6426
  32. Affected versionversion=QCA6430
  33. Affected versionversion=QCA6431
  34. Affected versionversion=QCA6436
  35. Affected versionversion=QCA6564
  36. Affected versionversion=QCA6564A
  37. Affected versionversion=QCA6564AU
  38. Affected versionversion=QCA6574
  39. Affected versionversion=QCA6574A
  40. Affected versionversion=QCA6574AU
  41. Affected versionversion=QCA6595
  42. Affected versionversion=QCA6595AU
  43. Affected versionversion=QCA6696
  44. Affected versionversion=QCA8337
  45. Affected versionversion=QCA9367
  46. Affected versionversion=QCA9377
  47. Affected versionversion=QCA9379
  48. Affected versionversion=QCM2290
  49. Affected versionversion=QCM4290
  50. Affected versionversion=QCM6125
  51. Affected versionversion=QCN9011
  52. Affected versionversion=QCN9012
  53. Affected versionversion=QCN9074
  54. Affected versionversion=QCS2290
  55. Affected versionversion=QCS410
  56. Affected versionversion=QCS4290
  57. Affected versionversion=QCS610
  58. Affected versionversion=QCS6125
  59. Affected versionversion=QCS8155
  60. Affected versionversion=QCS8250
  61. Affected versionversion=QRB5165M
  62. Affected versionversion=QRB5165N
  63. Affected versionversion=QSM8250
  64. Affected versionversion=Qualcomm 205 Mobile Platform
  65. Affected versionversion=Qualcomm 215 Mobile Platform
  66. Affected versionversion=Robotics RB3 Platform
  67. Affected versionversion=Robotics RB5 Platform
  68. Affected versionversion=SA6145P
  69. Affected versionversion=SA6150P
  70. Affected versionversion=SA6155
  71. Affected versionversion=SA6155P
  72. Affected versionversion=SA8145P
  73. Affected versionversion=SA8150P
  74. Affected versionversion=SA8155
  75. Affected versionversion=SA8155P
  76. Affected versionversion=SA8195P
  77. Affected versionversion=SD626
  78. Affected versionversion=SD660
  79. Affected versionversion=SD670
  80. Affected versionversion=SD675
  81. Affected versionversion=SD 675
  82. Affected versionversion=SD730
  83. Affected versionversion=SD835
  84. Affected versionversion=SD855
  85. Affected versionversion=SD865 5G
  86. Affected versionversion=SDM429W
  87. Affected versionversion=SDX20M
  88. Affected versionversion=SDX55
  89. Affected versionversion=SM4125
  90. Affected versionversion=SM6250
  91. Affected versionversion=SM6250P
  92. Affected versionversion=SM7250P
  93. Affected versionversion=Smart Audio 200 Platform
  94. Affected versionversion=Smart Audio 400 Platform
  95. Affected versionversion=Smart Display 200 Platform (APQ5053-AA)
  96. Affected versionversion=Snapdragon 1200 Wearable Platform
  97. Affected versionversion=Snapdragon 208 Processor
  98. Affected versionversion=Snapdragon 210 Processor
  99. Affected versionversion=Snapdragon 212 Mobile Platform
  100. Affected versionversion=Snapdragon 425 Mobile Platform
  101. Affected versionversion=Snapdragon 429 Mobile Platform
  102. Affected versionversion=Snapdragon 439 Mobile Platform
  103. Affected versionversion=Snapdragon 450 Mobile Platform
  104. Affected versionversion=Snapdragon 460 Mobile Platform
  105. Affected versionversion=Snapdragon 625 Mobile Platform
  106. Affected versionversion=Snapdragon 626 Mobile Platform
  107. Affected versionversion=Snapdragon 632 Mobile Platform
  108. Affected versionversion=Snapdragon 660 Mobile Platform
  109. Affected versionversion=Snapdragon 662 Mobile Platform
  110. Affected versionversion=Snapdragon 665 Mobile Platform
  111. Affected versionversion=Snapdragon 670 Mobile Platform
  112. Affected versionversion=Snapdragon 675 Mobile Platform
  113. Affected versionversion=Snapdragon 678 Mobile Platform (SM6150-AC)
  114. Affected versionversion=Snapdragon 680 4G Mobile Platform
  115. Affected versionversion=Snapdragon 685 4G Mobile Platform (SM6225-AD)
  116. Affected versionversion=Snapdragon 690 5G Mobile Platform
  117. Affected versionversion=Snapdragon 710 Mobile Platform
  118. Affected versionversion=Snapdragon 720G Mobile Platform
  119. Affected versionversion=Snapdragon 730G Mobile Platform (SM7150-AB)
  120. Affected versionversion=Snapdragon 730 Mobile Platform (SM7150-AA)
  121. Affected versionversion=Snapdragon 732G Mobile Platform (SM7150-AC)
  122. Affected versionversion=Snapdragon 750G 5G Mobile Platform
  123. Affected versionversion=Snapdragon 765 5G Mobile Platform (SM7250-AA)
  124. Affected versionversion=Snapdragon 765G 5G Mobile Platform (SM7250-AB)
  125. Affected versionversion=Snapdragon 768G 5G Mobile Platform (SM7250-AC)
  126. Affected versionversion=Snapdragon 820 Automotive Platform
  127. Affected versionversion=Snapdragon 835 Mobile PC Platform
  128. Affected versionversion=Snapdragon 845 Mobile Platform
  129. Affected versionversion=Snapdragon 855+/860 Mobile Platform (SM8150-AC)
  130. Affected versionversion=Snapdragon 855 Mobile Platform
  131. Affected versionversion=Snapdragon 865 5G Mobile Platform
  132. Affected versionversion=Snapdragon 865+ 5G Mobile Platform (SM8250-AB)
  133. Affected versionversion=Snapdragon 870 5G Mobile Platform (SM8250-AC)
  134. Affected versionversion=Snapdragon Auto 4G Modem
  135. Affected versionversion=Snapdragon Auto 5G Modem-RF
  136. Affected versionversion=Snapdragon Wear 2100 Platform
  137. Affected versionversion=Snapdragon Wear 2500 Platform
  138. Affected versionversion=Snapdragon Wear 3100 Platform
  139. Affected versionversion=Snapdragon Wear 4100+ Platform
  140. Affected versionversion=Snapdragon X20 LTE Modem
  141. Affected versionversion=Snapdragon X24 LTE Modem
  142. Affected versionversion=Snapdragon X50 5G Modem-RF System
  143. Affected versionversion=Snapdragon X55 5G Modem-RF System
  144. Affected versionversion=Snapdragon X5 LTE Modem
  145. Affected versionversion=Snapdragon XR1 Platform
  146. Affected versionversion=Snapdragon XR2 5G Platform
  147. Affected versionversion=Snapdragon XR2+ Gen 1 Platform
  148. Affected versionversion=SXR1120
  149. Affected versionversion=SXR2130
  150. Affected versionversion=Vision Intelligence 100 Platform (APQ8053-AA)
  151. Affected versionversion=Vision Intelligence 200 Platform (APQ8053-AC)
  152. Affected versionversion=Vision Intelligence 400 Platform
  153. Affected versionversion=WCD9326
  154. Affected versionversion=WCD9330
  155. Affected versionversion=WCD9335
  156. Affected versionversion=WCD9340
  157. Affected versionversion=WCD9341
  158. Affected versionversion=WCD9370
  159. Affected versionversion=WCD9371
  160. Affected versionversion=WCD9375
  161. Affected versionversion=WCD9380
  162. Affected versionversion=WCD9385
  163. Affected versionversion=WCN3610
  164. Affected versionversion=WCN3615
  165. Affected versionversion=WCN3620
  166. Affected versionversion=WCN3660
  167. Affected versionversion=WCN3660B
  168. Affected versionversion=WCN3680
  169. Affected versionversion=WCN3680B
  170. Affected versionversion=WCN3910
  171. Affected versionversion=WCN3950
  172. Affected versionversion=WCN3980
  173. Affected versionversion=WCN3988
  174. Affected versionversion=WCN3990
  175. Affected versionversion=WCN3999
  176. Affected versionversion=WSA8810
  177. Affected versionversion=WSA8815
  178. Affected versionversion=WSA8830
  179. Affected versionversion=WSA8835

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=315 5G IoT Modem; version=9206 LTE Modem; version=APQ8017; version=AQT1000; version=AR8031; version=AR8035; version=CSRA6620; version=CSRA6640; version=CSRB31024; version=C-V2X 9150; version=FastConnect 6200; version=FastConnect 6800; version=FastConnect 6900; version=Flight RB5 5G Platform; version=Home Hub 100 Platform; version=MDM9250; version=MDM9628; version=MDM9650; version=MSM8108; version=MSM8209; version=MSM8608; version=MSM8909W; 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=QCA6564; version=QCA6564A; version=QCA6564AU; version=QCA6574; version=QCA6574A; version=QCA6574AU; version=QCA6595; version=QCA6595AU; version=QCA6696; version=QCA8337; version=QCA9367; version=QCA9377; version=QCA9379; version=QCM2290; version=QCM4290; version=QCM6125; version=QCN9011; version=QCN9012; version=QCN9074; version=QCS2290; version=QCS410; version=QCS4290; version=QCS610; version=QCS6125; version=QCS8155; version=QCS8250; version=QRB5165M; version=QRB5165N; version=QSM8250; version=Qualcomm 205 Mobile Platform; version=Qualcomm 215 Mobile Platform; version=Robotics RB3 Platform; version=Robotics RB5 Platform; version=SA6145P; version=SA6150P; version=SA6155; version=SA6155P; version=SA8145P; version=SA8150P; version=SA8155; version=SA8155P; version=SA8195P; version=SD626; version=SD660; version=SD670; version=SD675; version=SD 675; version=SD730; version=SD835; version=SD855; version=SD865 5G; version=SDM429W; version=SDX20M; version=SDX55; version=SM4125; version=SM6250; version=SM6250P; version=SM7250P; version=Smart Audio 200 Platform; version=Smart Audio 400 Platform; version=Smart Display 200 Platform (APQ5053-AA); 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 429 Mobile Platform; version=Snapdragon 439 Mobile Platform; version=Snapdragon 450 Mobile Platform; version=Snapdragon 460 Mobile Platform; version=Snapdragon 625 Mobile Platform; version=Snapdragon 626 Mobile Platform; version=Snapdragon 632 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 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 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 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 Auto 4G Modem; version=Snapdragon Auto 5G Modem-RF; version=Snapdragon Wear 2100 Platform; version=Snapdragon Wear 2500 Platform; version=Snapdragon Wear 3100 Platform; version=Snapdragon Wear 4100+ Platform; 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 XR1 Platform; version=Snapdragon XR2 5G Platform; version=Snapdragon XR2+ Gen 1 Platform; version=SXR1120; version=SXR2130; version=Vision Intelligence 100 Platform (APQ8053-AA); version=Vision Intelligence 200 Platform (APQ8053-AC); version=Vision Intelligence 400 Platform; version=WCD9326; version=WCD9330; version=WCD9335; version=WCD9340; version=WCD9341; 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=WCN3999; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8835

Published CVSS scores

8.4Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-401Improper Release of Memory Before Removing Last Reference ('Memory Leak')

Public exploit references

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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