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CWE-122: Heap-based Buffer Overflow, page 17

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The product writes past the end of a buffer that was allocated on the heap.

What the weakness is: CWE-122 at MITRE

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Show the promptExplain CWE-122: Heap-based Buffer Overflow and how to prevent and detect it in code. Use https://cwe.mitre.org/data/definitions/122.html and https://cve.bz/cve/cwe/122?via=ask-ai-copy for recent CVEs with this weakness. Cite the sources.

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  1. 8.0CVE-2026-69481EPSS 0.8%

    Heap-based buffer overflow in Windows Enterprise App Management allows an authorized attacker to elevate privileges over a network.

  2. 7.8CVE-2026-69480EPSS 0.3%

    Heap-based buffer overflow in Windows Partition Management Driver allows an authorized attacker to elevate privileges locally.

  3. 8.4CVE-2026-69479EPSS 0.4%

    Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.

  4. 7.8CVE-2026-69478EPSS 0.3%

    Heap-based buffer overflow in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

  5. 7.3CVE-2026-69477EPSS 0.4%

    Heap-based buffer overflow in Microsoft Office Access allows an authorized attacker to execute code locally.

  6. 7.8CVE-2026-69476EPSS 0.3%

    Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

  7. 6.6CVE-2026-69469EPSS 0.5%

    Integer overflow or wraparound in Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker to elevate privileges with a physical attack.

  8. 7.0CVE-2026-69468EPSS 0.3%

    Heap-based buffer overflow in Windows Volume Manager Extension Driver allows an authorized attacker to elevate privileges locally.

  9. 9.8CVE-2026-69463EPSS 1.0%

    Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code over a network.

  10. 8.0CVE-2026-69462EPSS 0.8%

    Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges over a network.

  11. 7.8CVE-2026-69459EPSS 0.3%

    Heap-based buffer overflow in Windows Power Dependency Coordinator allows an authorized attacker to elevate privileges locally.

  12. 7.8CVE-2026-69456EPSS 0.3%

    Heap-based buffer overflow in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.

  13. 7.8CVE-2026-69455EPSS 0.3%

    Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.

  14. 6.7CVE-2026-69449EPSS 0.3%

    Heap-based buffer overflow in Windows BitLocker allows an authorized attacker to execute code locally.

  15. 7.8CVE-2026-69447EPSS 0.3%

    Heap-based buffer overflow in Windows Audio Service allows an authorized attacker to elevate privileges locally.

  16. 7.8CVE-2026-69444EPSS 0.3%

    Heap-based buffer overflow in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.

  17. 8.8CVE-2026-69442EPSS 0.8%

    Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.

  18. 8.8CVE-2026-69439EPSS 0.8%

    Heap-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to elevate privileges over a network.

  19. 7.8CVE-2026-69436EPSS 0.3%

    Heap-based buffer overflow in Windows State Repository Service allows an authorized attacker to elevate privileges locally.

  20. 8.8CVE-2026-69434EPSS 0.8%

    Heap-based buffer overflow in Windows URL Moniker allows an unauthorized attacker to execute code over a network.

  21. 7.8CVE-2026-69433EPSS 0.3%

    Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally.

  22. 7.8CVE-2026-69432EPSS 0.3%

    Heap-based buffer overflow in Volume Manager Driver allows an authorized attacker to elevate privileges locally.

  23. 9.8CVE-2026-69431EPSS 1.0%

    Heap-based buffer overflow in Telnet Client allows an unauthorized attacker to execute code over a network.

  24. 7.5CVE-2026-69429EPSS 0.7%

    Heap-based buffer overflow in Windows IKE Extension allows an authorized attacker to execute code over a network.

  25. 7.8CVE-2026-69426EPSS 0.3%

    Heap-based buffer overflow in Windows VOLSNAP.SYS allows an authorized attacker to execute code locally.

  26. 7.8CVE-2026-69424EPSS 0.3%

    Heap-based buffer overflow in Windows Distributed File System (DFS) allows an authorized attacker to elevate privileges locally.

  27. 8.0CVE-2026-69423EPSS 0.8%

    Heap-based buffer overflow in Windows USB Video Driver allows an authorized attacker to elevate privileges over a network.

  28. 7.8CVE-2026-69421EPSS 0.3%

    Integer underflow (wrap or wraparound) in Windows Kernel Mode Driver allows an authorized attacker to elevate privileges locally.

  29. 7.8CVE-2026-69420EPSS 0.3%

    Heap-based buffer overflow in Windows VOLSNAP.SYS allows an authorized attacker to elevate privileges locally.

  30. 8.0CVE-2026-69418EPSS 0.8%

    Heap-based buffer overflow in Volume Manager Driver allows an authorized attacker to elevate privileges over a network.

  31. 9.8CVE-2026-69408EPSS 1.0%

    Integer overflow or wraparound in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.

  32. 7.0CVE-2026-69394EPSS 0.3%

    Heap-based buffer overflow in Windows Audio Service allows an authorized attacker to elevate privileges locally.

  33. 7.8CVE-2026-69389EPSS 0.3%

    Heap-based buffer overflow in Windows Storage Management Provider allows an authorized attacker to elevate privileges locally.

  34. 8.8CVE-2026-69386EPSS 0.8%

    Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.

  35. 8.0CVE-2026-69371EPSS 0.8%

    Heap-based buffer overflow in Windows Overlay Filter allows an authorized attacker to elevate privileges over a network.

  36. 7.8CVE-2026-69368EPSS 0.3%

    Heap-based buffer overflow in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.

  37. 8.8CVE-2026-69360EPSS 0.8%

    Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

  38. 7.8CVE-2026-69359EPSS 0.3%

    Heap-based buffer overflow in Active Directory Domain Services allows an authorized attacker to elevate privileges locally.

  39. 7.8CVE-2026-69352EPSS 0.3%

    Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

  40. 6.7CVE-2026-69350EPSS 0.3%

    Heap-based buffer overflow in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.

  41. 7.8CVE-2026-69348EPSS 0.3%

    Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.

  42. 7.4CVE-2026-69347EPSS 0.3%

    Heap-based buffer overflow in Windows Fast FAT Driver allows an unauthorized attacker to execute code locally.

  43. 8.0CVE-2026-69346EPSS 0.8%

    Heap-based buffer overflow in Windows Print Spooler Components allows an authorized attacker to elevate privileges over a network.

  44. 7.1CVE-2026-69340EPSS 0.6%

    Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges over a network.

  45. 7.1CVE-2026-69336EPSS 0.6%

    Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.

  46. 8.8CVE-2026-69334EPSS 0.8%

    Heap-based buffer overflow in Windows Volume Manager Extension Driver allows an unauthorized attacker to execute code over a network.

  47. 8.1CVE-2026-69325EPSS 0.7%

    Heap-based buffer overflow in Microsoft JScript allows an unauthorized attacker to execute code over a network.

  48. 7.8CVE-2026-69323EPSS 0.3%

    Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

  49. 7.1CVE-2026-69313EPSS 0.6%

    Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.

  50. 7.8CVE-2026-69307EPSS 0.3%

    Heap-based buffer overflow in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.