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CWE-122: Heap-based Buffer Overflow, page 12

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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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    An issue was discovered in DPU in Samsung Mobile Processor Exynos 1280, 2200, and 1380. A heap overflow in the Exynos DRM HDR driver (due to improper buffer size validation) leads to kernel memory corruption and a system crash.

  5. 2.5CVE-2025-64031EPSS 0.2%

    libarchive 3.8.x before 3.8.2 has a strcpy heap-based buffer overflow in the gzip writer via the original-filename field to archive_compressor_gzip_open in archive_write_add_filter_gzip.c, aka GHSA-92wx-p669-8gr9. This relates to bsdtar. E…

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  7. 8.5CVE-2026-90556EPSS 0.2%

    Freeciv versions before 3.2.6 contain a heap buffer overflow in worklist_load() when processing savegame files with declared worklist lengths exceeding the fixed array bound of 64 elements. Attackers can craft malicious savegame files that…

  8. 7.4CVE-2026-54241EPSS 0.4%

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  9. 7.5CVE-2026-79393EPSS 0.7%

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  12. 3.3CVE-2026-45761EPSS 0.2%

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  14. 8.0CVE-2026-42807EPSS 0.3%

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  15. 9.8CVE-2026-85103EPSS 4.3%

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  16. 7.1CVE-2026-21104EPSS 0.1%

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  17. 9.2CVE-2026-21096EPSS 0.8%

    Heap-based buffer overflow in JPEG decoder of libimagecodec.quram.so prior to SMR Sep-2026 Release 1 allows remote attackers to execute arbitrary code.

  18. 9.2CVE-2026-21095EPSS 0.8%

    Heap-based buffer overflow in DNG decoder of libimagecodec.quram.so prior to SMR Sep-2026 Release 1 allows remote attackers to execute arbitrary code.

  19. 9.6CVE-2026-87654EPSS 0.4%

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  20. 8.8CVE-2026-87579EPSS 0.6%

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  25. 7.8CVE-2026-81992EPSS 0.3%

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  38. 8.8CVE-2026-85877EPSS 0.8%

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  39. 7.8CVE-2026-84000EPSS 0.3%

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

  40. 8.8CVE-2026-83998EPSS 0.8%

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

  41. 8.8CVE-2026-83996EPSS 0.3%

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

  42. 7.8CVE-2026-83995EPSS 0.3%

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  43. 8.8CVE-2026-83992EPSS 0.8%

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  44. 7.8CVE-2026-83988EPSS 0.3%

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  45. 7.8CVE-2026-83987EPSS 0.3%

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  46. 7.8CVE-2026-83986EPSS 0.3%

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  47. 7.8CVE-2026-83985EPSS 0.3%

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  48. 7.8CVE-2026-83983EPSS 0.3%

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  49. 7.8CVE-2026-83982EPSS 0.3%

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  50. 7.8CVE-2026-83981EPSS 0.3%

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