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CWE-416: Use After Free, page 57

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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

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  1. 7.8CVE-2026-27292EPSS 0.2%

    Adobe Framemaker versions 2022.8 and earlier are affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a vi…

  2. 7.0CVE-2026-33018EPSS 0.2%

    libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. Versions 1.8.7 and prior contain a Use-After-Free vulnerability via the load_gif() function in fromgif.c, where a single sixel_frame_t object is reused across a…

  3. 8.4CVE-2026-33115EPSS 0.3%

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

  4. 7.0CVE-2026-33104EPSS 0.2%

    Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

  5. 7.8CVE-2026-33101EPSS 0.2%

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

  6. 7.0CVE-2026-33100EPSS 0.2%

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

  7. 7.0CVE-2026-33099EPSS 0.2%

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

  8. 7.8CVE-2026-33098EPSS 0.3%

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

  9. 7.8CVE-2026-33095EPSS 0.4%

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

  10. 7.0CVE-2026-32224EPSS 0.2%

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

  11. 7.8CVE-2026-32200EPSS 0.3%

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

  12. 7.8CVE-2026-32199EPSS 0.3%

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

  13. 7.8CVE-2026-32198EPSS 0.3%

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

  14. 7.8CVE-2026-32197EPSS 0.3%

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

  15. 8.4CVE-2026-32190EPSS 0.3%

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

  16. 7.8CVE-2026-32189EPSS 0.4%

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

  17. 7.8CVE-2026-32165EPSS 0.2%

    Use after free in Windows User Interface Core allows an authorized attacker to elevate privileges locally.

  18. 7.8CVE-2026-32163EPSS 0.2%

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

  19. 7.8CVE-2026-32159EPSS 0.2%

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

  20. 7.8CVE-2026-32158EPSS 0.2%

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

  21. 8.8CVE-2026-32157EPSS 0.8%

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

  22. 7.4CVE-2026-32156EPSS 0.3%

    Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an unauthorized attacker to execute code locally.

  23. 7.8CVE-2026-32155EPSS 0.3%

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

  24. 7.8CVE-2026-32154EPSS 0.4%

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

  25. 7.8CVE-2026-32153EPSS 0.2%

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

  26. 7.8CVE-2026-32152EPSS 0.5%

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

  27. 7.0CVE-2026-32091EPSS 0.2%

    Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Brokering File System allows an unauthorized attacker to elevate privileges locally.

  28. 7.0CVE-2026-32090EPSS 0.2%

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

  29. 7.8CVE-2026-32089EPSS 0.2%

    Use after free in Windows Speech Brokered Api allows an authorized attacker to elevate privileges locally.

  30. 7.0CVE-2026-32080EPSS 0.2%

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

  31. 7.8CVE-2026-32078EPSS 0.3%

    Use after free in Windows Projected File System allows an authorized attacker to elevate privileges locally.

  32. 7.0CVE-2026-32075EPSS 0.3%

    Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.

  33. 7.0CVE-2026-32073EPSS 0.4%

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

  34. 7.0CVE-2026-32070EPSS 0.3%

    Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.

  35. 7.0CVE-2026-27927EPSS 0.2%

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

  36. 7.0CVE-2026-27926EPSS 0.2%

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

  37. 6.5CVE-2026-27925EPSS 0.4%

    Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an unauthorized attacker to disclose information over an adjacent network.

  38. 7.8CVE-2026-27924EPSS 0.3%

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

  39. 7.8CVE-2026-27923EPSS 0.2%

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

  40. 7.0CVE-2026-27922EPSS 0.2%

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

  41. 7.0CVE-2026-27921EPSS 1.2%

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  42. 7.0CVE-2026-27917EPSS 0.2%

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  43. 7.8CVE-2026-27916EPSS 0.2%

    Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.

  44. 7.8CVE-2026-27915EPSS 0.3%

    Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.

  45. 7.8CVE-2026-27911EPSS 0.2%

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

  46. 7.8CVE-2026-27909EPSS 1.8%

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  47. 7.0CVE-2026-27908EPSS 1.6%

    Use after free in Windows TDI Translation Driver (tdx.sys) allows an authorized attacker to elevate privileges locally.

  48. 7.0CVE-2026-26182EPSS 0.2%

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  49. 7.8CVE-2026-26181EPSS 0.2%

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  50. 7.0CVE-2026-26177EPSS 0.2%

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