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-2022-28672HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.2.1.53537. User interaEPSS 1.9%CVE-2022-28250MEDIUMAdobe Acrobat Reader DC Annotation Use-After-Free Information Disclosure VulnerabilityEPSS 1.9%CVE-2021-46655HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75. User interaction EPSS 1.9%CVE-2025-21307CRITICALWindows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution VulnerabilityEPSS 1.9%CVE-2025-21224HIGHWindows Line Printer Daemon (LPD) Service Remote Code Execution VulnerabilityEPSS 1.9%CVE-2023-38573HIGHA use-after-free vulnerability exists in the way Foxit Reader 12.1.2.15356 handles a signature field. A specially crafted Javascript code inEPSS 1.9%CVE-2025-30400HIGHMicrosoft DWM Core Library Elevation of Privilege VulnerabilityEPSS 1.9%KEVCVE-2021-21870HIGHA use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 10.1.4.37651. A specially crafted PDFEPSS 1.9%CVE-2021-21893HIGHA use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 11.0.0.49893. A specially crafted PDFEPSS 1.9%CVE-2025-26663HIGHWindows Lightweight Directory Access Protocol (LDAP) Remote Code Execution VulnerabilityEPSS 1.9%CVE-2021-34330—A vulnerability has been identified in JT2Go (All versions < V13.2), Teamcenter Visualization (All versions < V13.2). The Jt981.dll library EPSS 1.9%CVE-2024-38259HIGHMicrosoft Management Console Remote Code Execution VulnerabilityEPSS 1.9%CVE-2024-31083HIGHXorg-x11-server: use-after-free in procrenderaddglyphsEPSS 1.9%CVE-2022-24101LOWAdobe Acrobat Reader DC Annotation Use-After-Free Information Disclosure VulnerabilityEPSS 1.9%CVE-2020-13558HIGHA code execution vulnerability exists in the AudioSourceProviderGStreamer functionality of Webkit WebKitGTK 2.30.1. A specially crafted web EPSS 1.9%CVE-2023-32174CRITICALUnified Automation UaGateway NodeManagerOpcUa Use-After-Free Remote Code Execution VulnerabilityEPSS 1.9%CVE-2022-24062HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Sante DICOM Viewer Pro 13.2.0.21165. User EPSS 1.8%CVE-2021-28593LOWAdobe Illustrator PostScript Parsing Use-After-Free Information Disclosure VulnerabilityEPSS 1.8%CVE-2025-21406HIGHWindows Telephony Service Remote Code Execution VulnerabilityEPSS 1.8%CVE-2024-26221HIGHWindows DNS Server Remote Code Execution VulnerabilityEPSS 1.8%