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CWE-416: Use After Free, page 9

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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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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. 8.1CVE-2026-83914EPSS 0.8%

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

  2. 7.8CVE-2026-83913EPSS 0.4%

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

  3. 7.8CVE-2026-83912EPSS 0.3%

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

  4. 7.0CVE-2026-83901EPSS 0.3%

    Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

  5. 7.0CVE-2026-83900EPSS 0.3%

    Use after free in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.

  6. 7.0CVE-2026-83886EPSS 0.3%

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

  7. 7.8CVE-2026-83883EPSS 0.4%

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

  8. 7.0CVE-2026-83879EPSS 0.2%

    Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.

  9. 7.8CVE-2026-83876EPSS 0.4%

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

  10. 7.0CVE-2026-83866EPSS 0.3%

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

  11. 8.8CVE-2026-83862EPSS 0.4%

    Use after free in Windows Network Load Balancing allows an unauthorized attacker to execute code over an adjacent network.

  12. 7.8CVE-2026-83859EPSS 0.4%

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

  13. 7.0CVE-2026-83853EPSS 0.3%

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

  14. 7.0CVE-2026-83852EPSS 0.3%

    Use after free in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.

  15. 7.0CVE-2026-83846EPSS 0.3%

    Use after free in Connected Devices Platform Service (Cdpsvc) allows an authorized attacker to elevate privileges locally.

  16. 7.0CVE-2026-83834EPSS 0.3%

    Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.

  17. 7.8CVE-2026-83796EPSS 0.4%

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

  18. 7.0CVE-2026-83790EPSS 0.3%

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

  19. 7.0CVE-2026-83785EPSS 0.3%

    Use after free in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.

  20. 9.8CVE-2026-83780EPSS 1.1%

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

  21. 8.8CVE-2026-83771EPSS 0.6%

    Use after free in Windows Camera Frame Server Monitor allows an unauthorized attacker to elevate privileges over an adjacent network.

  22. 7.8CVE-2026-83769EPSS 0.4%

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

  23. 7.8CVE-2026-83762EPSS 0.4%

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

  24. 7.8CVE-2026-83761EPSS 0.4%

    Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

  25. 7.8CVE-2026-83756EPSS 0.3%

    Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

  26. 7.0CVE-2026-83752EPSS 0.3%

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

  27. 7.0CVE-2026-83751EPSS 0.3%

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

  28. 7.0CVE-2026-83749EPSS 0.3%

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

  29. 7.8CVE-2026-83741EPSS 0.3%

    Use after free in Internet Explorer allows an authorized attacker to elevate privileges locally.

  30. 7.0CVE-2026-83740EPSS 0.3%

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

  31. 7.5CVE-2026-83739EPSS 0.5%

    Use after free in Windows Bluetooth Service allows an unauthorized attacker to execute code over an adjacent network.

  32. 7.0CVE-2026-83738EPSS 0.3%

    Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

  33. 7.8CVE-2026-83732EPSS 0.4%

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

  34. 7.8CVE-2026-83726EPSS 0.4%

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

  35. 7.0CVE-2026-83722EPSS 0.2%

    Use after free in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges locally.

  36. 7.8CVE-2026-83721EPSS 0.4%

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

  37. 7.0CVE-2026-83720EPSS 0.3%

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

  38. 7.0CVE-2026-83718EPSS 0.3%

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

  39. 7.0CVE-2026-83717EPSS 0.3%

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

  40. 7.0CVE-2026-83710EPSS 0.3%

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

  41. 7.0CVE-2026-83707EPSS 0.3%

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

  42. 6.7CVE-2026-83706EPSS 0.4%

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

  43. 7.0CVE-2026-83702EPSS 0.3%

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

  44. 7.0CVE-2026-83701EPSS 0.3%

    Use after free in Windows Now Playing Session Manager allows an authorized attacker to elevate privileges locally.

  45. 7.8CVE-2026-83700EPSS 0.4%

    Use after free in Windows Now Playing Session Manager allows an authorized attacker to elevate privileges locally.

  46. 7.0CVE-2026-83696EPSS 0.3%

    Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

  47. 7.8CVE-2026-83690EPSS 0.4%

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

  48. 7.0CVE-2026-83689EPSS 0.3%

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

  49. 7.0CVE-2026-83687EPSS 0.3%

    Use after free in Windows Connected User Experiences and Telemetry allows an authorized attacker to elevate privileges locally.

  50. 7.0CVE-2026-83682EPSS 0.3%

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