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CWE-416: Use After Free, page 27

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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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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

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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. 7.8CVE-2026-70311EPSS 0.5%

    Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

  2. 7.0CVE-2026-70307EPSS 0.3%

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

  3. 7.0CVE-2026-68820KEVEPSS 8.6%

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

  4. 8.1CVE-2026-66802EPSS 0.5%

    Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Device Health Attestation (DHA) allows an unauthorized attacker to execute code over a network.

  5. 8.1CVE-2026-65789EPSS 0.7%

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

  6. 7.0CVE-2026-65788EPSS 0.3%

    Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

  7. 7.0CVE-2026-65783EPSS 0.3%

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

  8. 7.0CVE-2026-65782EPSS 0.3%

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

  9. 7.0CVE-2026-65781EPSS 0.3%

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

  10. 7.0CVE-2026-65779EPSS 0.3%

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

  11. 7.0CVE-2026-65778EPSS 0.3%

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

  12. 7.0CVE-2026-65776EPSS 0.3%

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

  13. 7.8CVE-2026-65775EPSS 0.3%

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

  14. 7.0CVE-2026-65678EPSS 0.3%

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

  15. 7.8CVE-2026-65657EPSS 0.5%

    Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

  16. 7.0CVE-2026-62908EPSS 0.2%

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

  17. 7.5CVE-2026-62898EPSS 1.0%

    Use after free in Microsoft QUIC allows an unauthorized attacker to disclose information over a network.

  18. 9.8CVE-2026-62893EPSS 1.0%

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

  19. 7.0CVE-2026-62892EPSS 0.3%

    Use after free in Capability Access Management Service (camsvc) allows an authorized attacker to elevate privileges locally.

  20. 7.8CVE-2026-62888EPSS 0.3%

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

  21. 8.1CVE-2026-62819EPSS 0.7%

    Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine

  22. 8.8CVE-2026-62818EPSS 0.9%

    Use after free in Active Directory Certificate Services (AD CS) allows an authorized attacker to execute code over a network.

  23. 9.8CVE-2026-62815EPSS 1.0%

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

  24. 8.8CVE-2026-62795EPSS 0.8%

    Use after free in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to execute code over a network.

  25. 7.0CVE-2026-62788EPSS 0.3%

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

  26. 7.5CVE-2026-62787EPSS 0.7%

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

  27. 7.0CVE-2026-62780EPSS 0.2%

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

  28. 7.8CVE-2026-62779EPSS 0.3%

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

  29. 8.1CVE-2026-62778EPSS 0.5%

    Use after free in Windows DNS allows an unauthorized attacker to elevate privileges over a network.

  30. 7.0CVE-2026-62774EPSS 0.3%

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

  31. 7.0CVE-2026-62773EPSS 0.3%

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

  32. 7.0CVE-2026-62749EPSS 0.3%

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

  33. 7.0CVE-2026-62748EPSS 0.2%

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

  34. 7.0CVE-2026-62734EPSS 0.2%

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

  35. 7.0CVE-2026-62729EPSS 0.2%

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

  36. 7.0CVE-2026-62726EPSS 0.3%

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

  37. 7.0CVE-2026-62725EPSS 0.3%

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

  38. 7.0CVE-2026-62724EPSS 0.3%

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

  39. 7.0CVE-2026-62723EPSS 0.3%

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

  40. 7.8CVE-2026-62711EPSS 0.3%

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

  41. 6.4CVE-2026-62708EPSS 0.3%

    Use after free in Windows Kernel allows an unauthorized attacker to elevate privileges with a physical attack.

  42. 7.8CVE-2026-62707EPSS 0.3%

    Use after free in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally.

  43. 7.0CVE-2026-62705EPSS 0.2%

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

  44. 7.8CVE-2026-62701EPSS 0.3%

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

  45. 7.0CVE-2026-62693EPSS 0.2%

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

  46. 7.0CVE-2026-62690EPSS 0.2%

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

  47. 7.0CVE-2026-61939EPSS 0.3%

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

  48. 7.0CVE-2026-61938EPSS 0.3%

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

  49. 7.8CVE-2026-61934EPSS 0.3%

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

  50. 7.0CVE-2026-61929EPSS 0.3%

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