Falhas do tipo CWE-416

5.079 resultados

Uso após liberação de memória

Ocorre quando o código tenta acessar (ler ou escrever) um bloco de memória que já foi liberado (free, delete). O programa mantém um ponteiro para a memória, mas o sistema operacional pode reatribuir essa região para outro uso, causando corrupção de dados, travamento ou execução de código arbitrário.

Exemplo

Um servidor web aloca memória para armazenar dados de sessão do usuário, depois libera essa memória quando a sessão encerra. Se uma thread continuar tentando acessar essa sessão após a liberação, pode ler dados de outra sessão ou sobrescrever dados críticos de outro processo.

Como mitigar

Sempre anule ponteiros após liberar memória (ptr = NULL), use variáveis de controle para rastrear estado de alocação, implemente gerenciamento automático de memória quando possível (smart pointers em C++), e execute testes com sanitizers (AddressSanitizer, Valgrind) durante desenvolvimento e CI/CD.

CVE-2024-37004HIGHMultiple Vulnerabilities in the Autodesk AutoCAD Desktop SoftwareEPSS 0.4%CVE-2025-11677MEDIUMUse After Free in libwebsockets WebSocket serverEPSS 0.4%CVE-2025-21159HIGHIllustrator | Use After Free (CWE-416)EPSS 0.4%CVE-2026-79210HIGHUse after free in Audio in Google Chrome on on Android prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer proEPSS 0.4%CVE-2026-87639HIGHUse after free in WebPackaging in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process toEPSS 0.4%CVE-2026-85048HIGHUse after free in Compositing in Google Chrome prior to 152.0.7977.82 allowed a remote attacker who had compromised the renderer process to EPSS 0.4%CVE-2026-59184HIGHOpenEXR: OpenEXRUtil FlatImageChannel row nonzero dataWindow heap OOB writeEPSS 0.4%CVE-2026-84349HIGHUse after free in Browser in Google Chrome prior to 152.0.7977.75 allowed a remote attacker who had compromised the renderer process to execEPSS 0.4%CVE-2026-79224HIGHUse after free in Chromecast in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to eEPSS 0.4%CVE-2021-0262MEDIUMJunos OS: QFX10002-60C: Use after free vulnerability found during static code analysisEPSS 0.4%CVE-2026-78983HIGHUse after free in Views in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to executEPSS 0.4%CVE-2026-87648HIGHUse after free in ANGLE in Google Chrome on on Windows prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer proEPSS 0.4%CVE-2026-79054HIGHUse after free in Chromecast in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to eEPSS 0.4%CVE-2026-87524HIGHUse after free in Core in Google Chrome on on Windows prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer procEPSS 0.4%CVE-2026-10887HIGHUse after free in Chromoting in Google Chrome on Mac prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code via maliciouEPSS 0.4%CVE-2026-87480HIGHUse after free in Printing in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potEPSS 0.4%CVE-2023-37575HIGHMultiple use-after-free vulnerabilities exist in the VCD get_vartoken realloc functionality of GTKWave 3.3.115. A specially crafted .vcd filEPSS 0.4%CVE-2023-37574HIGHMultiple use-after-free vulnerabilities exist in the VCD get_vartoken realloc functionality of GTKWave 3.3.115. A specially crafted .vcd filEPSS 0.4%CVE-2023-37576HIGHMultiple use-after-free vulnerabilities exist in the VCD get_vartoken realloc functionality of GTKWave 3.3.115. A specially crafted .vcd filEPSS 0.4%CVE-2023-44328MEDIUMZDI-CAN-21797: Adobe Bridge MP4 File Parsing Use-After-Free Information Disclosure VulnerabilityEPSS 0.4%