Fallos del tipo CWE-416

5138 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-2026-11634CRITICALUse after free in Gamepad in Google Chrome on Windows prior to 149.0.7827.103 allowed a remote attacker to potentially perform a sandbox escEPSS 0.3%CVE-2022-49082HIGHscsi: mpt3sas: Fix use after free in _scsih_expander_node_remove()EPSS 0.3%CVE-2026-2321HIGHUse after free in Ozone in Google Chrome prior to 145.0.7632.45 allowed a remote attacker who convinced a user to engage in specific UI gestEPSS 0.3%CVE-2025-12438HIGHUse after free in Ozone in Google Chrome on Linux and ChromeOS prior to 142.0.7444.59 allowed a remote attacker to potentially exploit objecEPSS 0.3%CVE-2026-11657HIGHUse after free in Payments in Google Chrome on Mac prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code via a craftedEPSS 0.3%CVE-2026-11654CRITICALUse after free in CameraCapture in Google Chrome on Mac prior to 149.0.7827.103 allowed a remote attacker to potentially perform a sandbox eEPSS 0.3%CVE-2023-52838MEDIUMfbdev: imsttfb: fix a resource leak in probeEPSS 0.3%CVE-2022-3977HIGHA use-after-free flaw was found in the Linux kernel MCTP (Management Component Transport Protocol) functionality. This issue occurs when a uEPSS 0.3%CVE-2024-50280HIGHdm cache: fix flushing uninitialized delayed_work on cache_ctr errorEPSS 0.3%CVE-2026-12440CRITICALUse after free in DigitalCredentials in Google Chrome on Windows prior to 149.0.7827.155 allowed a remote attacker to potentially perform a EPSS 0.3%CVE-2023-1838—A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in virtio network subcomponent in the Linux kernel due to a EPSS 0.3%CVE-2026-11941MEDIUMUse-after-free in connection ID iterator and FFI functionsEPSS 0.3%CVE-2023-4295HIGHMali GPU Kernel Driver allows improper GPU memory processing operationsEPSS 0.3%CVE-2024-57926HIGHdrm/mediatek: Set private->all_drm_private[i]->drm to NULL if mtk_drm_bind returns errEPSS 0.3%CVE-2025-59195HIGHWindows Graphics Component Denial of Service VulnerabilityEPSS 0.3%CVE-2025-8176MEDIUMLibTIFF tiffmedian.c get_histogram use after freeEPSS 0.3%CVE-2023-33250MEDIUMThe Linux kernel 6.3 has a use-after-free in iopt_unmap_iova_range in drivers/iommu/iommufd/io_pagetable.c.EPSS 0.3%CVE-2022-2979HIGHOmron CX-ProgrammerEPSS 0.3%CVE-2023-2235HIGHUse-after-free in Linux kernel's Performance Events subsystemEPSS 0.3%CVE-2025-59220HIGHWindows Bluetooth Service Elevation of Privilege VulnerabilityEPSS 0.2%