Fallos del tipo CWE-416

5038 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-2026-21241HIGHWindows Ancillary Function Driver for WinSock Elevation of Privilege VulnerabilityEPSS 2.6%CVE-2022-35254HIGHAn unauthenticated attacker can cause a denial-of-service to the following products: Ivanti Connect Secure (ICS) in versions prior to 9.1R14EPSS 2.6%CVE-2023-38243MEDIUMZDI-CAN-21252: Adobe Acrobat Reader DC JBIG2 File Parsing Use-After-Free Information Disclosure VulnerabilityEPSS 2.6%CVE-2024-35264HIGH.NET and Visual Studio Remote Code Execution VulnerabilityEPSS 2.6%CVE-2022-30647HIGHAdobe Illustrator Font Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 2.5%CVE-2022-30648HIGHAdobe Illustrator Font Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 2.5%CVE-2021-21900HIGHA code execution vulnerability exists in the dxfRW::processLType() functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crEPSS 2.5%CVE-2022-24360HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.1.0.52543. User interaEPSS 2.5%CVE-2022-24367HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.1.0.52543. User interaEPSS 2.5%CVE-2022-24365HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.1.0.52543. User interaEPSS 2.5%CVE-2022-24366HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.1.0.52543. User interaEPSS 2.5%CVE-2022-24362HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.1.0.52543. User interaEPSS 2.5%CVE-2022-24364HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.1.0.52543. User interaEPSS 2.5%CVE-2022-24359HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.1.0.52543. User interaEPSS 2.5%CVE-2022-24363HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.1.0.52543. User interaEPSS 2.5%CVE-2022-24357HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.1.0.52543. User interaEPSS 2.5%CVE-2024-21409HIGH.NET, .NET Framework, and Visual Studio Remote Code Execution VulnerabilityEPSS 2.5%CVE-2021-36008LOWAdobe Illustrator PDF File Parsing Use-After-Free Information Disclosure VulnerabilityEPSS 2.5%CVE-2022-43552MEDIUMA use after free vulnerability exists in curl <7.87.0. Curl can be asked to *tunnel* virtually all protocols it supports through an HTTP proEPSS 2.5%CVE-2025-62221HIGHWindows Cloud Files Mini Filter Driver Elevation of Privilege VulnerabilityEPSS 2.5%KEV