Fallos del tipo CWE-416

5143 resultados

Uso após liberação de memória

Ocorre quando o código tenta acessar uma área de memória que já foi liberada (deallocated). O programa continua usando um ponteiro que aponta para um endereço inválido, causando leitura/escrita em memória não controlada. Isso pode levar a crash, corrupção de dados ou execução arbitrária de código.

Ejemplo

Um navegador aloca memória para um objeto DOM, depois o remove da página e libera a memória. Se um script JavaScript ainda tentar acessar esse objeto deletado, o navegador tenta ler/escrever em um endereço que agora contém outro dado, causando comportamento impredizível ou exploração por atacante.

Cómo mitigar

Use linguagens com garbage collection (Java, Python, C#) ou práticas rigorosas: null os ponteiros após free(), use smart pointers (C++), evite compartilhamento de referências sem sincronização, faça testes de memória com ferramentas como Valgrind ou AddressSanitizer.

CVE-2026-91790HIGHFoxit PDF Editor/Reader Doc Object Use-After-Free Information Disclosure VulnerabilityEPSS 0.1%CVE-2026-91793HIGHFoxit PDF Editor/Reader Doc Object Use-After-Free Information Disclosure VulnerabilityEPSS 0.1%CVE-2022-20552MEDIUMIn btif_a2dp_sink_command_ready of btif_a2dp_sink.cc, there is a possible out of bounds read due to a use after free. This could lead to locEPSS 0.1%CVE-2026-11623LOWtmux image.c image_free use after freeEPSS 0.1%CVE-2026-47588HIGHNVIDIA GPU Display Driver for Linux contains a vulnerability where an unprivileged user could cause a use-after-free condition by issuing a EPSS 0.1%CVE-2026-47589HIGHNVIDIA GPU Display Driver for Windows and Linux contains a vulnerability where an unprivileged user may cause a use-after-free condition by EPSS 0.1%CVE-2026-47594HIGHNVIDIA GPU Display Driver for Windows and Linux contains a vulnerability where an unprivileged user may cause a use-after-free condition by EPSS 0.1%CVE-2026-47587HIGHNVIDIA GPU Display Driver for Linux contains a vulnerability where an unprivileged user could cause a use-after-free. A successful exploit oEPSS 0.1%CVE-2026-47590HIGHNVIDIA GPU Display Driver for Windows and Linux contains a vulnerability where an unprivileged user may cause a use-after-free condition by EPSS 0.1%CVE-2022-33225MEDIUMUse after free in Trusted Application EnvironmentEPSS 0.1%CVE-2023-28577MEDIUMMultiple Dmabuf Kernel Address UAF VulnerabilityEPSS 0.1%CVE-2022-20158MEDIUMIn bdi_put and bdi_unregister of backing-dev.c, there is a possible memory corruption due to a use after free. This could lead to local escaEPSS 0.1%CVE-2022-33245MEDIUMUse after free in WLANEPSS 0.1%CVE-2026-4737HIGHUse-After-Free Vulnerability in No-Chicken/Echo-MateEPSS 0.1%CVE-2022-42754MEDIUMIn npu driver, there is a memory corruption due to a use after free. This could lead to local denial of service in kernel.EPSS 0.1%CVE-2022-25723HIGHMemory corruption in multimedia due to use after free during callback registration failure in Snapdragon MobileEPSS 0.1%CVE-2025-0031MEDIUMA use after free in the SEV firmware could allow a malicous hypervisor to activate a migrated guest with the SINGLE_SOCKET policy on a diffeEPSS 0.1%CVE-2022-39853MEDIUMA use after free vulnerability in perf-mgr driver prior to SMR Oct-2022 Release 1 allows attacker to cause memory access fault.EPSS 0.1%CVE-2023-33094HIGHUse After Free in Linux GraphicsEPSS 0.1%CVE-2023-33114HIGHUse after free in Neural Processing UnitEPSS 0.1%