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CWE-416: Use After Free, page 43

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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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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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  3. 8.8CVE-2026-12439EPSS 0.3%

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  4. 8.3CVE-2026-12437EPSS 0.3%

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  5. 7.8CVE-2026-0143EPSS 0.07%

    In lwis_device_external_event_emit of lwis_event.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for…

  6. 7.8CVE-2026-0137EPSS 0.07%

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  7. 7.0CVE-2026-0125EPSS 0.07%

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  9. 4.8CVE-2026-10639EPSS 0.2%

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  10. 7.5CVE-2026-10638EPSS 0.4%

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  12. 3.7CVE-2026-10636EPSS 0.3%

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  17. 9.8CVE-2026-12293EPSS 0.3%

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  18. 8.8CVE-2026-12291EPSS 0.4%

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  19. 6.3CVE-2026-10635EPSS 0.2%

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  23. 5.3CVE-2026-10634EPSS 0.3%

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  24. 7.8CVE-2026-41158EPSS 0.1%

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  25. 8.7CVE-2026-11933EPSS 0.4%

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  26. 8.8CVE-2026-12035EPSS 0.2%

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    Use after free in Video in Google Chrome on Windows prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Hi…

  28. 8.3CVE-2026-12028EPSS 0.2%

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  38. 6.2CVE-2026-46523EPSS 0.3%

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  47. 7.8CVE-2026-47918EPSS 0.3%

    Acrobat Reader versions 24.001.30365, 26.001.21651 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 intera…

  48. 7.8CVE-2026-47917EPSS 0.3%

    Acrobat Reader versions 24.001.30365, 26.001.21651 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 intera…

  49. 7.8CVE-2026-47916EPSS 0.2%

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