CVE-2023-21637

Memory corruption via system configuration API calls

Published Jul 4, 2023 · Updated Aug 2, 2024

Memory corruption in Qualcomm Snapdragon Linux components allows high-privilege local users to corrupt memory through system configuration API calls. Qualcomm has not disclosed the affected function, unsafe buffer operation, triggering input, or resulting device behavior. Local high-privilege access is required, and the published assessment reports that no user interaction is needed.

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

Memory corruption in Qualcomm Snapdragon Linux components allows high-privilege local users to corrupt memory through system configuration API calls. Qualcomm has not disclosed the affected function, unsafe buffer operation, triggering input, or resulting device behavior. Local high-privilege access is required, and the published assessment reports that no user interaction is needed.

The record

CVE
CVE-2023-21637
Published
Jul 4, 2023
Updated
Aug 2, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-119, CWE-787
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jul 4, 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=AQT1000
  2. Affected versionversion=FastConnect 6200
  3. Affected versionversion=FastConnect 6800
  4. Affected versionversion=FastConnect 6900
  5. Affected versionversion=QCA6310
  6. Affected versionversion=QCA6320
  7. Affected versionversion=QCA6391
  8. Affected versionversion=QCA6420
  9. Affected versionversion=QCA6426
  10. Affected versionversion=QCA6430
  11. Affected versionversion=QCA6436
  12. Affected versionversion=QCA6574A
  13. Affected versionversion=QCA6574AU
  14. Affected versionversion=QCA6595AU
  15. Affected versionversion=QCA6696
  16. Affected versionversion=SA6145P
  17. Affected versionversion=SA6150P
  18. Affected versionversion=SA6155P
  19. Affected versionversion=SA8145P
  20. Affected versionversion=SA8150P
  21. Affected versionversion=SA8155P
  22. Affected versionversion=SA8195P
  23. Affected versionversion=SD835
  24. Affected versionversion=SD855
  25. Affected versionversion=SD865 5G
  26. Affected versionversion=SDX55
  27. Affected versionversion=Snapdragon 835 Mobile PC Platform
  28. Affected versionversion=Snapdragon 855+/860 Mobile Platform (SM8150-AC)
  29. Affected versionversion=Snapdragon 855 Mobile Platform
  30. Affected versionversion=Snapdragon 865 5G Mobile Platform
  31. Affected versionversion=Snapdragon 865+ 5G Mobile Platform (SM8250-AB)
  32. Affected versionversion=Snapdragon 870 5G Mobile Platform (SM8250-AC)
  33. Affected versionversion=Snapdragon Auto 5G Modem-RF
  34. Affected versionversion=Snapdragon W5+ Gen 1 Wearable Platform
  35. Affected versionversion=Snapdragon Wear 4100+ Platform
  36. Affected versionversion=Snapdragon X55 5G Modem-RF System
  37. Affected versionversion=Snapdragon XR2 5G Platform
  38. Affected versionversion=SW5100
  39. Affected versionversion=SW5100P
  40. Affected versionversion=SXR2130
  41. Affected versionversion=WCD9335
  42. Affected versionversion=WCD9340
  43. Affected versionversion=WCD9341
  44. Affected versionversion=WCD9360
  45. Affected versionversion=WCD9380
  46. Affected versionversion=WCN3610
  47. Affected versionversion=WCN3660B
  48. Affected versionversion=WCN3680B
  49. Affected versionversion=WCN3980
  50. Affected versionversion=WCN3988
  51. Affected versionversion=WCN3990
  52. Affected versionversion=WSA8810
  53. Affected versionversion=WSA8815
  54. Affected versionversion=WSA8830
  55. Affected versionversion=WSA8835

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Qualcomm · Snapdragonversion=AQT1000; version=FastConnect 6200; version=FastConnect 6800; version=FastConnect 6900; version=QCA6310; version=QCA6320; version=QCA6391; version=QCA6420; version=QCA6426; version=QCA6430; version=QCA6436; version=QCA6574A; version=QCA6574AU; version=QCA6595AU; version=QCA6696; version=SA6145P; version=SA6150P; version=SA6155P; version=SA8145P; version=SA8150P; version=SA8155P; version=SA8195P; version=SD835; version=SD855; version=SD865 5G; version=SDX55; version=Snapdragon 835 Mobile PC 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 5G Modem-RF; version=Snapdragon W5+ Gen 1 Wearable Platform; version=Snapdragon Wear 4100+ Platform; version=Snapdragon X55 5G Modem-RF System; version=Snapdragon XR2 5G Platform; version=SW5100; version=SW5100P; version=SXR2130; version=WCD9335; version=WCD9340; version=WCD9341; version=WCD9360; version=WCD9380; version=WCN3610; version=WCN3660B; version=WCN3680B; version=WCN3980; version=WCN3988; version=WCN3990; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8835

Published CVSS scores

7.8NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.7Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-787Out-of-bounds Write

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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