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-2018-17705—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.2.0.9297. User interactioEPSS 3.9%CVE-2018-17694—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit PhantomPDF 9.2.0.9297. User interaEPSS 3.9%CVE-2018-17698—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit PhantomPDF 9.2.0.9297. User interaEPSS 3.9%CVE-2018-17683—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.2.0.9297. User interactioEPSS 3.9%CVE-2018-17695—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit PhantomPDF 9.2.0.9297. User interaEPSS 3.9%CVE-2018-17702—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.2.0.9297. User interactioEPSS 3.9%CVE-2019-13332HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 9.6.0.25114. User interactionEPSS 3.9%CVE-2019-13327HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 9.5.0.20723. User interactionEPSS 3.9%CVE-2019-13326HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 9.5.0.20723. User interactionEPSS 3.9%CVE-2019-13328HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 9.5.0.20723. User interactionEPSS 3.9%CVE-2022-35665HIGHAdobe Acrobat Reader Use-After-Free Arbitrary Code ExecutionEPSS 3.8%CVE-2026-42530CRITICALNGINX Open-Source ngx_http_v3_module vulnerabilityEPSS 3.8%CVE-2018-17616—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.1.5096. User interactioEPSS 3.8%CVE-2018-17617—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.1.5096. User interactioEPSS 3.8%CVE-2018-17619—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.1.5096. User interactioEPSS 3.8%CVE-2018-17620—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.1.5096. User interactioEPSS 3.8%CVE-2022-27800HIGHAdobe Acrobat Reader DC Annotation Use-After-Free Remote Code Execution VulnerabilityEPSS 3.8%CVE-2024-38140CRITICALWindows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution VulnerabilityEPSS 3.8%CVE-2022-27797HIGHAdobe Acrobat Reader DC Annotation Use-After-Free Remote Code Execution VulnerabilityEPSS 3.8%CVE-2022-27795HIGHAdobe Acrobat Reader DC AcroForm isDefaultChecked Use-After-Free Remote Code Execution VulnerabilityEPSS 3.8%