Fallos del tipo CWE-416

5110 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-2023-0135HIGHUse after free in Cart in Google Chrome prior to 109.0.5414.74 allowed an attacker who convinced a user to install a malicious extension to EPSS 0.5%CVE-2023-0134HIGHUse after free in Cart in Google Chrome prior to 109.0.5414.74 allowed an attacker who convinced a user to install a malicious extension to EPSS 0.5%CVE-2025-1012CRITICALUse-after-free during concurrent delazificationEPSS 0.5%CVE-2024-30161MEDIUMIn Qt 6.5.4, 6.5.5, and 6.6.2, QNetworkReply header data might be accessed via a dangling pointer in Qt for WebAssembly (wasm). (Earlier andEPSS 0.5%CVE-2025-43550HIGHAcrobat Reader | Use After Free (CWE-416)EPSS 0.5%CVE-2025-43577HIGHAcrobat Reader | Use After Free (CWE-416)EPSS 0.5%CVE-2021-3392—A use-after-free flaw was found in the MegaRAID emulator of QEMU. This issue occurs while processing SCSI I/O requests in the case of an errEPSS 0.4%CVE-2026-92040HIGHUse-after-free in the JavaScript: WebAssembly componentEPSS 0.4%CVE-2026-6928CRITICALMultiple Vulnerabilities in IBM Concert SoftwareEPSS 0.4%CVE-2025-53147HIGHWindows Ancillary Function Driver for WinSock Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-24680HIGHFreeRDP has a heap-use-after-free in update_pointer_new(SDL)EPSS 0.4%CVE-2023-21532HIGHWindows GDI Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2024-0806HIGHUse after free in Passwords in Google Chrome prior to 121.0.6167.85 allowed a remote attacker to potentially exploit heap corruption via speEPSS 0.4%CVE-2026-10646HIGHUse-after-return in `zsock_getaddrinfo()` when a timed-out DNS query is retried without cancellationEPSS 0.4%CVE-2025-53152HIGHDesktop Windows Manager Remote Code Execution VulnerabilityEPSS 0.4%CVE-2025-6192HIGHUse after free in Metrics in Google Chrome prior to 137.0.7151.119 allowed a remote attacker to potentially exploit heap corruption via a crEPSS 0.4%CVE-2024-9252LOWFoxit PDF Reader AcroForm Use-After-Free Information Disclosure VulnerabilityEPSS 0.4%CVE-2023-40489HIGHMaxon Cinema 4D SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-40488HIGHMaxon Cinema 4D SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-40487HIGHMaxon Cinema 4D SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.4%