Falhas do tipo CWE-416

5.110 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-2026-11028HIGHUse after free in Media in Google Chrome on Linux and ChromeOS prior to 149.0.7827.53 allowed a remote attacker who had compromised the rendEPSS 0.4%CVE-2026-10991HIGHUse after free in V8 in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who convinced a user to engage in specific UI gestureEPSS 0.4%CVE-2026-10957HIGHUse after free in Glic in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crEPSS 0.4%CVE-2025-57616HIGHAn issue was discovered in rust-ffmpeg 0.3.0 (after comit 5ac0527) A use-after-free vulnerability in the write_interleaved method allows an EPSS 0.4%CVE-2026-10959HIGHUse after free in Input in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandEPSS 0.4%CVE-2026-21242HIGHWindows Subsystem for Linux Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-11000HIGHUse after free in Fonts in Google Chrome on Linux prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandboEPSS 0.4%CVE-2026-10958HIGHUse after free in Chrome for iOS in Google Chrome on iOS prior to 149.0.7827.53 allowed a remote attacker who convinced a user to engage in EPSS 0.4%CVE-2026-50452HIGHWindows Runtime Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-10945HIGHUse after free in PDF in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who convinced a user to engage in specific UI gesturEPSS 0.4%CVE-2018-16882MEDIUMA use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted interrupts when nested(=1) virtualization is EPSS 0.4%CVE-2024-45146HIGHDimension | Use After Free (CWE-416)EPSS 0.4%CVE-2023-32055MEDIUMActive Template Library Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-10893HIGHUse after free in Chromoting in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code via malicious netwoEPSS 0.4%CVE-2026-50348HIGHWindows Runtime Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2023-2762HIGHUse-After-Free vulnerability in SLDPRT file reading procedure affecting SOLIDWORKS Desktop from Release SOLIDWORKS 2021 through Release SOLIDWORKS 2023EPSS 0.4%CVE-2025-53142HIGHMicrosoft Brokering File System Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2025-60716HIGHDirectX Graphics Kernel Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2020-10690MEDIUMThere is a use-after-free in kernel versions before 5.5 due to a race condition between the release of ptp_clock and cdev while resource deaEPSS 0.4%CVE-2022-41303HIGHA user may be tricked into opening a malicious FBX file which may exploit a use-after-free vulnerability in Autodesk FBX SDK 2020 version caEPSS 0.4%