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CWE-122: Heap-based Buffer Overflow, page 14

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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. 7.5CVE-2026-77898EPSS 0.6%

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

  2. 8.8CVE-2026-77495EPSS 0.8%

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

  3. 8.8CVE-2026-77486EPSS 0.8%

    Integer overflow or wraparound in SQL Server allows an unauthorized attacker to execute code over a network.

  4. 8.8CVE-2026-77482EPSS 0.8%

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

  5. 8.8CVE-2026-77481EPSS 0.9%

    Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.

  6. 7.8CVE-2026-73026EPSS 0.3%

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

  7. 7.8CVE-2026-73024EPSS 0.3%

    Heap-based buffer overflow in Windows Services for NFS ONCRPC XDR Driver allows an authorized attacker to elevate privileges locally.

  8. 8.8CVE-2026-73023EPSS 0.8%

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

  9. 7.8CVE-2026-73021EPSS 0.3%

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

  10. 7.8CVE-2026-73020EPSS 0.3%

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

  11. 8.8CVE-2026-73018EPSS 0.8%

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

  12. 7.5CVE-2026-73017EPSS 0.3%

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

  13. 8.8CVE-2026-73016EPSS 0.8%

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

  14. 7.8CVE-2026-73015EPSS 0.3%

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

  15. 8.8CVE-2026-73013EPSS 0.8%

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

  16. 8.8CVE-2026-73012EPSS 0.9%

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

  17. 7.8CVE-2026-73011EPSS 0.3%

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

  18. 7.8CVE-2026-73007EPSS 0.3%

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

  19. 7.8CVE-2026-73001EPSS 0.3%

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

  20. 7.8CVE-2026-73000EPSS 0.3%

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

  21. 7.8CVE-2026-72997EPSS 0.3%

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

  22. 7.8CVE-2026-72996EPSS 0.3%

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

  23. 7.8CVE-2026-72995EPSS 0.3%

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

  24. 7.8CVE-2026-72994EPSS 0.3%

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

  25. 7.8CVE-2026-72993EPSS 0.3%

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

  26. 7.8CVE-2026-72992EPSS 0.3%

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

  27. 7.8CVE-2026-72991EPSS 0.3%

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

  28. 7.8CVE-2026-72990EPSS 0.3%

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

  29. 7.8CVE-2026-72988EPSS 0.3%

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

  30. 8.8CVE-2026-72986EPSS 0.8%

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

  31. 6.8CVE-2026-72985EPSS 0.4%

    Heap-based buffer overflow in Windows Volume Shadow Copy allows an unauthorized attacker to elevate privileges with a physical attack.

  32. 8.8CVE-2026-72973EPSS 0.8%

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

  33. 8.8CVE-2026-72972EPSS 0.8%

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

  34. 7.8CVE-2026-72967EPSS 0.3%

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

  35. 8.2CVE-2026-72962EPSS 0.3%

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

  36. 8.2CVE-2026-72961EPSS 0.3%

    Out-of-bounds read in Windows Hyper-V allows an authorized attacker to elevate privileges locally.

  37. 8.8CVE-2026-72960EPSS 0.8%

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

  38. 8.8CVE-2026-72959EPSS 0.9%

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

  39. 7.8CVE-2026-72957EPSS 0.3%

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

  40. 7.8CVE-2026-72953EPSS 0.3%

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

  41. 9.8CVE-2026-72950EPSS 0.9%

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

  42. 7.8CVE-2026-72946EPSS 0.3%

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

  43. 7.8CVE-2026-72944EPSS 0.3%

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

  44. 7.8CVE-2026-72941EPSS 0.3%

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

  45. 8.8CVE-2026-72940EPSS 0.8%

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

  46. 8.8CVE-2026-72933EPSS 0.8%

    Heap-based buffer overflow in Microsoft WDAC OLE DB provider for SQL allows an unauthorized attacker to execute code over a network.

  47. 7.8CVE-2026-72927EPSS 0.3%

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

  48. 6.8CVE-2026-71350EPSS 0.4%

    Heap-based buffer overflow in Windows Spaceport.sys allows an unauthorized attacker to execute code with a physical attack.

  49. 6.8CVE-2026-71349EPSS 0.4%

    Heap-based buffer overflow in Windows Spaceport.sys allows an unauthorized attacker to execute code with a physical attack.

  50. 6.8CVE-2026-71348EPSS 0.4%

    Heap-based buffer overflow in Windows Spaceport.sys allows an unauthorized attacker to execute code with a physical attack.