CVE-2023-28556

Local key compromise through undisclosed authorization flaw

Published Nov 7, 2023 · Updated Aug 2, 2024

Improper authorization in Snapdragon HLOS key management allows local users to compromise protected key confidentiality and integrity. Qualcomm has not published the authorization decision, key-management operation, or input that causes the cryptographic failure. Exploitation requires low-privileged local code on a device built with an affected chipset; no availability impact is reported.

CVSS severity7.1
High
EPSS probability0.12%
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 Snapdragon HLOS key management allows local users to compromise protected key confidentiality and integrity. Qualcomm has not published the authorization decision, key-management operation, or input that causes the cryptographic failure. Exploitation requires low-privileged local code on a device built with an affected chipset; no availability impact is reported.

The record

CVE
CVE-2023-28556
Published
Nov 7, 2023
Updated
Aug 2, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-285
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 7, 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=9205 LTE Modem
  3. Affected versionversion=AQT1000
  4. Affected versionversion=AR8031
  5. Affected versionversion=AR8035
  6. Affected versionversion=CSRA6620
  7. Affected versionversion=CSRA6640
  8. Affected versionversion=CSRB31024
  9. Affected versionversion=C-V2X 9150
  10. Affected versionversion=FastConnect 6200
  11. Affected versionversion=FastConnect 6700
  12. Affected versionversion=FastConnect 6800
  13. Affected versionversion=FastConnect 6900
  14. Affected versionversion=FastConnect 7800
  15. Affected versionversion=Flight RB5 5G Platform
  16. Affected versionversion=FSM10056
  17. Affected versionversion=MDM9205S
  18. Affected versionversion=QAM8255P
  19. Affected versionversion=QAM8295P
  20. Affected versionversion=QAM8650P
  21. Affected versionversion=QAM8775P
  22. Affected versionversion=QAMSRV1H
  23. Affected versionversion=QCA4004
  24. Affected versionversion=QCA6174A
  25. Affected versionversion=QCA6391
  26. Affected versionversion=QCA6420
  27. Affected versionversion=QCA6421
  28. Affected versionversion=QCA6426
  29. Affected versionversion=QCA6430
  30. Affected versionversion=QCA6431
  31. Affected versionversion=QCA6436
  32. Affected versionversion=QCA6564
  33. Affected versionversion=QCA6564A
  34. Affected versionversion=QCA6564AU
  35. Affected versionversion=QCA6574
  36. Affected versionversion=QCA6574A
  37. Affected versionversion=QCA6574AU
  38. Affected versionversion=QCA6595
  39. Affected versionversion=QCA6595AU
  40. Affected versionversion=QCA6696
  41. Affected versionversion=QCA6698AQ
  42. Affected versionversion=QCA6797AQ
  43. Affected versionversion=QCA8081
  44. Affected versionversion=QCA8337
  45. Affected versionversion=QCA9377
  46. Affected versionversion=QCC710
  47. Affected versionversion=QCM2290
  48. Affected versionversion=QCM4290
  49. Affected versionversion=QCM4325
  50. Affected versionversion=QCM4490
  51. Affected versionversion=QCM6125
  52. Affected versionversion=QCM6490
  53. Affected versionversion=QCM8550
  54. Affected versionversion=QCN6024
  55. Affected versionversion=QCN6224
  56. Affected versionversion=QCN6274
  57. Affected versionversion=QCN7606
  58. Affected versionversion=QCN9011
  59. Affected versionversion=QCN9012
  60. Affected versionversion=QCN9024
  61. Affected versionversion=QCN9074
  62. Affected versionversion=QCS2290
  63. Affected versionversion=QCS410
  64. Affected versionversion=QCS4290
  65. Affected versionversion=QCS4490
  66. Affected versionversion=QCS610
  67. Affected versionversion=QCS6125
  68. Affected versionversion=QCS6490
  69. Affected versionversion=QCS7230
  70. Affected versionversion=QCS8155
  71. Affected versionversion=QCS8250
  72. Affected versionversion=QCS8550
  73. Affected versionversion=QDU1000
  74. Affected versionversion=QDU1010
  75. Affected versionversion=QDU1110
  76. Affected versionversion=QDU1210
  77. Affected versionversion=QDX1010
  78. Affected versionversion=QDX1011
  79. Affected versionversion=QFW7114
  80. Affected versionversion=QFW7124
  81. Affected versionversion=QRB5165M
  82. Affected versionversion=QRB5165N
  83. Affected versionversion=QRU1032
  84. Affected versionversion=QRU1052
  85. Affected versionversion=QRU1062
  86. Affected versionversion=QSM8250
  87. Affected versionversion=QSM8350
  88. Affected versionversion=QTS110
  89. Affected versionversion=Qualcomm Video Collaboration VC1 Platform
  90. Affected versionversion=Qualcomm Video Collaboration VC3 Platform
  91. Affected versionversion=Qualcomm Video Collaboration VC5 Platform
  92. Affected versionversion=Robotics RB5 Platform
  93. Affected versionversion=SA4150P
  94. Affected versionversion=SA4155P
  95. Affected versionversion=SA6145P
  96. Affected versionversion=SA6150P
  97. Affected versionversion=SA6155
  98. Affected versionversion=SA6155P
  99. Affected versionversion=SA8145P
  100. Affected versionversion=SA8150P
  101. Affected versionversion=SA8155
  102. Affected versionversion=SA8155P
  103. Affected versionversion=SA8195P
  104. Affected versionversion=SA8255P
  105. Affected versionversion=SA8295P
  106. Affected versionversion=SA8540P
  107. Affected versionversion=SA8650P
  108. Affected versionversion=SA9000P
  109. Affected versionversion=SC8180X+SDX55
  110. Affected versionversion=SC8380XP
  111. Affected versionversion=SD460
  112. Affected versionversion=SD662
  113. Affected versionversion=SD670
  114. Affected versionversion=SD675
  115. Affected versionversion=SD 675
  116. Affected versionversion=SD730
  117. Affected versionversion=SD855
  118. Affected versionversion=SD865 5G
  119. Affected versionversion=SD888
  120. Affected versionversion=SD 8 Gen1 5G
  121. Affected versionversion=SDX55
  122. Affected versionversion=SG4150P
  123. Affected versionversion=SG8275P
  124. Affected versionversion=SM4125
  125. Affected versionversion=SM6250
  126. Affected versionversion=SM6250P
  127. Affected versionversion=SM7250P
  128. Affected versionversion=SM7315
  129. Affected versionversion=SM7325P
  130. Affected versionversion=SM8550P
  131. Affected versionversion=Smart Audio 400 Platform
  132. Affected versionversion=Snapdragon 460 Mobile Platform
  133. Affected versionversion=Snapdragon 480 5G Mobile Platform
  134. Affected versionversion=Snapdragon 480+ 5G Mobile Platform (SM4350-AC)
  135. Affected versionversion=Snapdragon 4 Gen 1 Mobile Platform
  136. Affected versionversion=Snapdragon 4 Gen 2 Mobile Platform
  137. Affected versionversion=Snapdragon 662 Mobile Platform
  138. Affected versionversion=Snapdragon 665 Mobile Platform
  139. Affected versionversion=Snapdragon 670 Mobile Platform
  140. Affected versionversion=Snapdragon 675 Mobile Platform
  141. Affected versionversion=Snapdragon 678 Mobile Platform (SM6150-AC)
  142. Affected versionversion=Snapdragon 680 4G Mobile Platform
  143. Affected versionversion=Snapdragon 685 4G Mobile Platform (SM6225-AD)
  144. Affected versionversion=Snapdragon 690 5G Mobile Platform
  145. Affected versionversion=Snapdragon 695 5G Mobile Platform
  146. Affected versionversion=Snapdragon 710 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 855+/860 Mobile Platform (SM8150-AC)
  163. Affected versionversion=Snapdragon 855 Mobile Platform
  164. Affected versionversion=Snapdragon 865 5G Mobile Platform
  165. Affected versionversion=Snapdragon 865+ 5G Mobile Platform (SM8250-AB)
  166. Affected versionversion=Snapdragon 870 5G Mobile Platform (SM8250-AC)
  167. Affected versionversion=Snapdragon 888 5G Mobile Platform
  168. Affected versionversion=Snapdragon 888+ 5G Mobile Platform (SM8350-AC)
  169. Affected versionversion=Snapdragon 8c Compute Platform (SC8180X-AD) "Poipu Lite"
  170. Affected versionversion=Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite"
  171. Affected versionversion=Snapdragon 8cx Compute Platform (SC8180X-AA, AB)
  172. Affected versionversion=Snapdragon 8cx Compute Platform (SC8180XP-AC, AF) "Poipu Pro"
  173. Affected versionversion=Snapdragon 8cx Gen 2 5G Compute Platform (SC8180X-AC, AF) "Poipu Pro"
  174. Affected versionversion=Snapdragon 8cx Gen 2 5G Compute Platform (SC8180XP-AA, AB)
  175. Affected versionversion=Snapdragon 8cx Gen 3 Compute Platform (SC8280XP-AB, BB)
  176. Affected versionversion=Snapdragon 8 Gen 1 Mobile Platform
  177. Affected versionversion=Snapdragon 8+ Gen 1 Mobile Platform
  178. Affected versionversion=Snapdragon 8 Gen 2 Mobile Platform
  179. Affected versionversion=Snapdragon 8+ Gen 2 Mobile Platform
  180. Affected versionversion=Snapdragon AR2 Gen 1 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 X24 LTE Modem
  186. Affected versionversion=Snapdragon X50 5G Modem-RF System
  187. Affected versionversion=Snapdragon X55 5G Modem-RF System
  188. Affected versionversion=Snapdragon X65 5G Modem-RF System
  189. Affected versionversion=Snapdragon X75 5G Modem-RF System
  190. Affected versionversion=Snapdragon XR1 Platform
  191. Affected versionversion=Snapdragon XR2 5G Platform
  192. Affected versionversion=Snapdragon XR2+ Gen 1 Platform
  193. Affected versionversion=SRV1H
  194. Affected versionversion=SSG2115P
  195. Affected versionversion=SSG2125P
  196. Affected versionversion=SW5100
  197. Affected versionversion=SW5100P
  198. Affected versionversion=SXR1120
  199. Affected versionversion=SXR1230P
  200. Affected versionversion=SXR2130
  201. Affected versionversion=SXR2230P
  202. Affected versionversion=WCD9306
  203. Affected versionversion=WCD9326
  204. Affected versionversion=WCD9335
  205. Affected versionversion=WCD9340
  206. Affected versionversion=WCD9341
  207. Affected versionversion=WCD9360
  208. Affected versionversion=WCD9370
  209. Affected versionversion=WCD9371
  210. Affected versionversion=WCD9375
  211. Affected versionversion=WCD9380
  212. Affected versionversion=WCD9385
  213. Affected versionversion=WCD9390
  214. Affected versionversion=WCD9395
  215. Affected versionversion=WCN3910
  216. Affected versionversion=WCN3950
  217. Affected versionversion=WCN3980
  218. Affected versionversion=WCN3988
  219. Affected versionversion=WCN3990
  220. Affected versionversion=WCN3999
  221. Affected versionversion=WCN6740
  222. Affected versionversion=WSA8810
  223. Affected versionversion=WSA8815
  224. Affected versionversion=WSA8830
  225. Affected versionversion=WSA8832
  226. Affected versionversion=WSA8835
  227. Affected versionversion=WSA8840
  228. Affected versionversion=WSA8845
  229. Affected versionversion=WSA8845H

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Qualcomm · Snapdragonversion=315 5G IoT Modem; version=9205 LTE Modem; version=AQT1000; version=AR8031; 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=Flight RB5 5G Platform; version=FSM10056; version=MDM9205S; version=QAM8255P; version=QAM8295P; version=QAM8650P; version=QAM8775P; version=QAMSRV1H; version=QCA4004; version=QCA6174A; 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=QCA6698AQ; version=QCA6797AQ; version=QCA8081; version=QCA8337; version=QCA9377; version=QCC710; version=QCM2290; version=QCM4290; version=QCM4325; version=QCM4490; version=QCM6125; version=QCM6490; version=QCM8550; version=QCN6024; version=QCN6224; version=QCN6274; version=QCN7606; version=QCN9011; version=QCN9012; version=QCN9024; version=QCN9074; version=QCS2290; version=QCS410; version=QCS4290; version=QCS4490; version=QCS610; version=QCS6125; version=QCS6490; version=QCS7230; version=QCS8155; version=QCS8250; version=QCS8550; version=QDU1000; version=QDU1010; version=QDU1110; version=QDU1210; version=QDX1010; version=QDX1011; version=QFW7114; version=QFW7124; version=QRB5165M; version=QRB5165N; version=QRU1032; version=QRU1052; version=QRU1062; version=QSM8250; version=QSM8350; version=QTS110; version=Qualcomm Video Collaboration VC1 Platform; version=Qualcomm Video Collaboration VC3 Platform; version=Qualcomm Video Collaboration VC5 Platform; version=Robotics RB5 Platform; version=SA4150P; version=SA4155P; version=SA6145P; version=SA6150P; version=SA6155; version=SA6155P; version=SA8145P; version=SA8150P; version=SA8155; version=SA8155P; version=SA8195P; version=SA8255P; version=SA8295P; version=SA8540P; version=SA8650P; version=SA9000P; version=SC8180X+SDX55; version=SC8380XP; version=SD460; version=SD662; version=SD670; version=SD675; version=SD 675; version=SD730; version=SD855; version=SD865 5G; version=SD888; version=SD 8 Gen1 5G; version=SDX55; version=SG4150P; version=SG8275P; version=SM4125; version=SM6250; version=SM6250P; version=SM7250P; version=SM7315; version=SM7325P; version=SM8550P; 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 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 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 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 AR2 Gen 1 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 X24 LTE Modem; version=Snapdragon X50 5G Modem-RF System; version=Snapdragon X55 5G Modem-RF System; version=Snapdragon X65 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=SSG2115P; version=SSG2125P; version=SW5100; version=SW5100P; version=SXR1120; version=SXR1230P; version=SXR2130; version=SXR2230P; version=WCD9306; version=WCD9326; version=WCD9335; version=WCD9340; version=WCD9341; version=WCD9360; version=WCD9370; version=WCD9371; version=WCD9375; version=WCD9380; version=WCD9385; version=WCD9390; version=WCD9395; version=WCN3910; version=WCN3950; version=WCN3980; version=WCN3988; version=WCN3990; version=WCN3999; version=WCN6740; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8832; version=WSA8835; version=WSA8840; version=WSA8845; version=WSA8845H

Published CVSS scores

7.1Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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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