Fallos del tipo CWE-416

5129 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-2022-2742HIGHUse after free in Exosphere in Google Chrome on Chrome OS and Lacros prior to 104.0.5112.79 allowed a remote attacker who convinced a user tEPSS 0.4%CVE-2026-20822HIGHWindows Graphics Component Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-20842HIGHMicrosoft DWM Core Library Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-16356CRITICALSandbox escape due to use-after-free in the Disability Access APIs componentEPSS 0.4%CVE-2026-5883HIGHUse after free in Media in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code inside a sandbox via a cEPSS 0.4%CVE-2026-16351CRITICALSandbox escape due to use-after-free in the DOM: Navigation componentEPSS 0.4%CVE-2026-16352CRITICALSandbox escape due to use-after-free in the Disability Access APIs componentEPSS 0.4%CVE-2026-7347HIGHUse after free in Chromoting in Google Chrome prior to 147.0.7727.138 allowed a remote attacker to execute arbitrary code via malicious netwEPSS 0.4%CVE-2026-19166CRITICALUse after free in Web Authentication in Google Chrome prior to 151.0.7922.109 allowed a remote attacker to potentially perform a sandbox escEPSS 0.4%CVE-2026-13779HIGHUse after free in Chromoting in Google Chrome on ChromeOS prior to 150.0.7871.47 allowed a remote attacker to execute arbitrary code via malEPSS 0.4%CVE-2025-26601HIGHXorg: xwayland: use-after-free in syncinittrigger()EPSS 0.4%CVE-2026-95333HIGHUse after free in Metrics in Google Chrome prior to 154.0.8037.57 allowed a remote attacker to execute arbitrary code outside the sandbox viEPSS 0.4%CVE-2025-26594HIGHX.org: xwayland: use-after-free of the root cursorEPSS 0.4%CVE-2023-26606HIGHIn the Linux kernel 6.0.8, there is a use-after-free in ntfs_trim_fs in fs/ntfs3/bitmap.c.EPSS 0.4%CVE-2026-64715MEDIUMA use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, EPSS 0.4%CVE-2025-26600HIGHXorg: xwayland: use-after-free in playreleasedevents()EPSS 0.4%CVE-2025-27200HIGHAnimate | Use After Free (CWE-416)EPSS 0.4%CVE-2026-28835MEDIUMA use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOEPSS 0.4%CVE-2024-27934HIGH*const c_void / ExternalPointer unsoundness leading to use-after-freeEPSS 0.4%CVE-2025-47986HIGHUniversal Print Management Service Elevation of Privilege VulnerabilityEPSS 0.4%