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CWE-416: Use After Free, page 20

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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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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. 7.0CVE-2026-80093EPSS 0.3%

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

  2. 8.8CVE-2026-80081EPSS 0.8%

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

  3. 8.8CVE-2026-78525EPSS 0.8%

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

  4. 7.5CVE-2026-78523EPSS 1.0%

    Use after free in Windows DNS allows an unauthorized attacker to deny service over a network.

  5. 8.8CVE-2026-78514EPSS 0.8%

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

  6. 8.8CVE-2026-78507EPSS 0.8%

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

  7. 7.0CVE-2026-78457EPSS 0.3%

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

  8. 8.1CVE-2026-78450EPSS 0.7%

    Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over a network.

  9. 8.1CVE-2026-78449EPSS 0.7%

    Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over a network.

  10. 7.5CVE-2026-78446EPSS 0.5%

    Use after free in Windows Distributed File System (DFS) allows an authorized attacker to execute code over a network.

  11. 9.8CVE-2026-78445EPSS 1.0%

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

  12. 7.0CVE-2026-77905EPSS 0.3%

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

  13. 7.0CVE-2026-77899EPSS 0.3%

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

  14. 7.0CVE-2026-77894EPSS 0.2%

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

  15. 8.1CVE-2026-77505EPSS 0.7%

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

  16. 7.0CVE-2026-77485EPSS 0.3%

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

  17. 7.0CVE-2026-73022EPSS 0.3%

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

  18. 9.8CVE-2026-73010EPSS 1.0%

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

  19. 9.8CVE-2026-73009EPSS 1.0%

    Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to execute code over a network.

  20. 7.0CVE-2026-73005EPSS 0.2%

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

  21. 7.0CVE-2026-73003EPSS 0.3%

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

  22. 8.1CVE-2026-72987EPSS 0.7%

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

  23. 9.8CVE-2026-72983EPSS 1.0%

    Use after free in Windows Internet Connection Sharing (ICS) allows an unauthorized attacker to execute code over a network.

  24. 8.1CVE-2026-72981EPSS 0.7%

    Use after free in IP Helper allows an unauthorized attacker to execute code over a network.

  25. 9.8CVE-2026-72979EPSS 1.0%

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

  26. 7.8CVE-2026-72965EPSS 0.3%

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

  27. 7.0CVE-2026-72963EPSS 0.3%

    Use after free in Windows Modern Execution Server allows an authorized attacker to elevate privileges locally.

  28. 7.5CVE-2026-72954EPSS 0.7%

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

  29. 7.5CVE-2026-72943EPSS 0.7%

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

  30. 8.1CVE-2026-72936EPSS 0.7%

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

  31. 7.0CVE-2026-72930EPSS 0.3%

    Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an authorized attacker to execute code locally.

  32. 7.5CVE-2026-72928EPSS 0.7%

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

  33. 7.0CVE-2026-72926EPSS 0.3%

    Use after free in Windows Internet Connection Sharing (ICS) allows an authorized attacker to elevate privileges locally.

  34. 7.0CVE-2026-71342EPSS 0.3%

    Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.

  35. 7.0CVE-2026-71340EPSS 0.3%

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

  36. 7.0CVE-2026-71333EPSS 0.3%

    Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.

  37. 7.0CVE-2026-71332EPSS 0.3%

    Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an authorized attacker to elevate privileges locally.

  38. 7.0CVE-2026-70585EPSS 0.3%

    Use after free in Windows Services for NFS ONCRPC XDR Driver allows an authorized attacker to execute code locally.

  39. 6.4CVE-2026-70582EPSS 0.2%

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

  40. 7.0CVE-2026-70577EPSS 0.3%

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

  41. 8.1CVE-2026-70570EPSS 0.7%

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

  42. 7.0CVE-2026-70565EPSS 0.3%

    Use after free in Windows AF_UNIX Socket Provider allows an authorized attacker to elevate privileges locally.

  43. 8.1CVE-2026-70342EPSS 0.7%

    Use after free in Windows Ancillary Function Driver for WinSock allows an unauthorized attacker to elevate privileges over a network.

  44. 8.1CVE-2026-69989EPSS 0.7%

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

  45. 7.0CVE-2026-69911EPSS 0.3%

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

  46. 7.0CVE-2026-69896EPSS 0.3%

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

  47. 7.0CVE-2026-69891EPSS 0.3%

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

  48. 7.5CVE-2026-69890EPSS 0.3%

    Use after free in Windows Virtual Trusted Platform Module allows an authorized attacker to elevate privileges locally.

  49. 7.0CVE-2026-69889EPSS 0.3%

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

  50. 8.0CVE-2026-69876EPSS 0.6%

    Use after free in Windows DHCP Server allows an authorized attacker to execute code over an adjacent network.