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-2023-26418HIGHZDI-CAN-20311: Adobe Acrobat Reader DC AcroForm exportAsFDFStr Use-After-Free Remote Code Execution VulnerabilityEPSS 2.7%CVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEVCVE-2022-28838HIGHAdobe Acrobat Pro DC Doc flattenPages Use-After-Free Remote Code Execution VulnerabilityEPSS 2.7%CVE-2023-38230MEDIUMZDI-CAN-21318: Adobe Acrobat Reader DC Font Parsing Use-After-Free Information Disclosure VulnerabilityEPSS 2.7%CVE-2018-0170—A vulnerability in the Cisco Umbrella Integration feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause EPSS 2.7%CVE-2021-32944—A use-after-free issue exists in the DGN file-reading procedure in the Drawings SDK (All versions prior to 2022.4) resulting from the lack oEPSS 2.7%CVE-2023-36034HIGHMicrosoft Edge (Chromium-based) Remote Code Execution VulnerabilityEPSS 2.7%CVE-2018-14809—Fuji Electric V-Server 4.0.3.0 and prior, A use after free vulnerability has been identified, which may allow remote code execution.EPSS 2.7%CVE-2022-30657HIGHAdobe InCopy Font Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 2.7%CVE-2022-28823HIGHAdobe FrameMaker Font Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 2.7%CVE-2022-30655HIGHAdobe InCopy Font Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 2.7%CVE-2022-28824HIGHAdobe FrameMaker Font Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 2.7%CVE-2019-6772LOWThis vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader 2019.010.20098. UseEPSS 2.7%CVE-2019-6758LOWThis vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader 9.4.16811. User intEPSS 2.7%CVE-2019-6771LOWThis vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader 2019.010.20098. UseEPSS 2.7%CVE-2019-6770LOWThis vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader 9.4.1.16828. User iEPSS 2.7%CVE-2019-6766LOWThis vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader 9.4.1.16828. User iEPSS 2.7%CVE-2018-9961—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.1.1049. User interactioEPSS 2.6%CVE-2018-9953—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.1.1049. User interactioEPSS 2.6%CVE-2018-9935—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 8.3.2.25013. User interactiEPSS 2.6%