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CWE-416: Use After Free, page 21

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The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

What the weakness is: CWE-416 at MITRE

Ask an AI about CWE-416

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Show the promptExplain CWE-416: Use After Free and how to prevent and detect it in code. Use https://cwe.mitre.org/data/definitions/416.html and https://cve.bz/cve/cwe/416?via=ask-ai-copy for recent CVEs with this weakness. Cite the sources.

Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this weakness's id and public links.

  1. 7.0CVE-2026-69866EPSS 0.3%

    Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

  2. 7.8CVE-2026-69864EPSS 0.3%

    Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.

  3. 8.1CVE-2026-69858EPSS 0.7%

    Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.

  4. 7.0CVE-2026-69838EPSS 0.3%

    Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.

  5. 7.0CVE-2026-69834EPSS 0.3%

    Use after free in Windows ALPC allows an authorized attacker to elevate privileges locally.

  6. 8.1CVE-2026-69827EPSS 0.5%

    Concurrent execution using shared resource with improper synchronization ('race condition') in DNS Server allows an unauthorized attacker to execute code over a network.

  7. 7.0CVE-2026-69818EPSS 0.3%

    Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.

  8. 7.0CVE-2026-69817EPSS 0.3%

    Use after free in Windows Bluetooth Port Driver allows an authorized attacker to elevate privileges locally.

  9. 7.0CVE-2026-69816EPSS 0.3%

    Use after free in Windows Accounts Control allows an authorized attacker to elevate privileges locally.

  10. 7.0CVE-2026-69814EPSS 0.3%

    Use after free in Windows Credential Providers allows an authorized attacker to elevate privileges locally.

  11. 8.1CVE-2026-69813EPSS 0.7%

    Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.

  12. 8.8CVE-2026-69797EPSS 0.8%

    Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.

  13. 7.0CVE-2026-69791EPSS 0.3%

    Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

  14. 8.8CVE-2026-69784EPSS 0.3%

    Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.

  15. 8.1CVE-2026-69782EPSS 0.5%

    Concurrent execution using shared resource with improper synchronization ('race condition') in DNS Server allows an unauthorized attacker to execute code over a network.

  16. 7.5CVE-2026-69775EPSS 0.6%

    Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges over a network.

  17. 8.8CVE-2026-69767EPSS 0.8%

    Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.

  18. 7.5CVE-2026-69761EPSS 0.6%

    Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges over a network.

  19. 7.5CVE-2026-69757EPSS 0.6%

    Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges over a network.

  20. 8.8CVE-2026-69740EPSS 0.3%

    Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.

  21. 7.0CVE-2026-69735EPSS 0.3%

    Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

  22. 9.8CVE-2026-69730EPSS 1.0%

    Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.

  23. 8.8CVE-2026-69712EPSS 0.9%

    Use after free in Windows Key Distribution Center allows an authorized attacker to execute code over a network.

  24. 7.0CVE-2026-69711EPSS 0.3%

    Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

  25. 7.0CVE-2026-69708EPSS 0.3%

    Use after free in Windows Web Platform Storage allows an authorized attacker to elevate privileges locally.

  26. 7.5CVE-2026-69706EPSS 0.6%

    Use after free in Windows Win32K allows an authorized attacker to elevate privileges over a network.

  27. 7.0CVE-2026-69693EPSS 0.3%

    Use after free in Windows Device Association Broker service allows an authorized attacker to elevate privileges locally.

  28. 7.0CVE-2026-69692EPSS 0.3%

    Use after free in Windows Audio Service allows an authorized attacker to elevate privileges locally.

  29. 7.0CVE-2026-69682EPSS 0.2%

    Use after free in Windows Host Guardian Service allows an authorized attacker to elevate privileges locally.

  30. 8.8CVE-2026-69678EPSS 0.8%

    Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.

  31. 7.0CVE-2026-69654EPSS 0.3%

    Use after free in Windows Accounts Control allows an authorized attacker to elevate privileges locally.

  32. 7.0CVE-2026-69652EPSS 0.3%

    Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.

  33. 7.0CVE-2026-69648EPSS 0.3%

    Use after free in Windows Notification allows an authorized attacker to elevate privileges locally.

  34. 7.0CVE-2026-69645EPSS 0.3%

    Use after free in Windows Message Queuing allows an authorized attacker to elevate privileges locally.

  35. 8.8CVE-2026-69632EPSS 0.8%

    Use after free in Microsoft Office allows an unauthorized attacker to execute code over a network.

  36. 7.0CVE-2026-69613EPSS 0.3%

    Use after free in Windows Image Acquisition allows an authorized attacker to elevate privileges locally.

  37. 7.0CVE-2026-69611EPSS 0.3%

    Use after free in Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to elevate privileges locally.

  38. 7.5CVE-2026-69607EPSS 0.6%

    Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a network.

  39. 7.0CVE-2026-69606EPSS 0.3%

    Use after free in Windows Shell allows an authorized attacker to elevate privileges locally.

  40. 7.0CVE-2026-69605EPSS 0.3%

    Use after free in Microsoft Install Service allows an authorized attacker to elevate privileges locally.

  41. 7.5CVE-2026-69602EPSS 0.6%

    Use after free in Windows PrintWorkflowUserSvc allows an authorized attacker to elevate privileges over a network.

  42. 7.0CVE-2026-69600EPSS 0.3%

    Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.

  43. 7.5CVE-2026-69599EPSS 0.7%

    Use after free in Windows Remote Desktop Services allows an authorized attacker to execute code over a network.

  44. 7.5CVE-2026-69597EPSS 0.6%

    Use after free in Windows HTTP.sys allows an authorized attacker to elevate privileges over a network.

  45. 9.8CVE-2026-69595EPSS 1.0%

    Use after free in Windows Services for NFS ONCRPC XDR Driver allows an unauthorized attacker to execute code over a network.

  46. 7.0CVE-2026-69581EPSS 0.2%

    Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

  47. 9.8CVE-2026-69579EPSS 1.0%

    Use after free in Windows Message Queuing allows an unauthorized attacker to execute code over a network.

  48. 7.8CVE-2026-69576EPSS 0.3%

    Use after free in Graphic Fonts allows an authorized attacker to elevate privileges locally.

  49. 7.0CVE-2026-69575EPSS 0.3%

    Use after free in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.

  50. 7.0CVE-2026-69574EPSS 0.3%

    Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally.