Fallos del tipo CWE-416

5043 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-2025-15280HIGHFontForge SFD File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.6%CVE-2025-59282HIGHInternet Information Services (IIS) Inbox COM Objects (Global Memory) Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-57986HIGHMicrosoft Edge (Chromium-based) Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-66315HIGHMicrosoft Edge (Chromium-based) Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-58287HIGHMicrosoft Edge (Chromium-based) Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-57992HIGHMicrosoft Edge (Chromium-based) Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-58294HIGHMicrosoft Edge (Chromium-based) Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-47654HIGHRemote Desktop Client Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-58288HIGHMicrosoft Edge (Chromium-based) Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-57984HIGHMicrosoft Edge (Chromium-based) Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-69607HIGHWindows Deployment Services Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-44801HIGHRemote Desktop Client Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-48563HIGHRemote Desktop Client Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-69397HIGHMicrosoft OpenSSH for Windows Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-58276HIGHMicrosoft Edge (Chromium-based) Remote Code Execution VulnerabilityEPSS 0.6%CVE-2024-7527HIGHUnexpected marking work at the start of sweeping could have led to a use-after-free. This vulnerability affects Firefox < 129, Firefox ESR <EPSS 0.6%CVE-2026-74943CRITICALUse-after-free in the Graphics: ImageLib componentEPSS 0.6%CVE-2026-74940CRITICALUse-after-free in the Graphics: Text componentEPSS 0.6%CVE-2024-36844HIGHlibmodbus v3.1.6 was discovered to contain a use-after-free via the ctx->backend pointer. This vulnerability allows attackers to cause a DenEPSS 0.6%CVE-2025-21281HIGHMicrosoft COM for Windows Elevation of Privilege VulnerabilityEPSS 0.6%