Fallos del tipo CWE-416

5138 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-2025-21693HIGHmm: zswap: properly synchronize freeing resources during CPU hotunplugEPSS 0.2%CVE-2025-61842MEDIUMFormat Plugins | Use After Free (CWE-416)EPSS 0.2%CVE-2026-11687HIGHUse after free in Dawn in Google Chrome on Mac prior to 149.0.7827.103 allowed a remote attacker to potentially exploit heap corruption via EPSS 0.2%CVE-2026-8553LOWUse after free in GPU in Google Chrome prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer process to performEPSS 0.2%CVE-2025-21929HIGHHID: intel-ish-hid: Fix use-after-free issue in hid_ishtp_cl_remove()EPSS 0.2%CVE-2025-21915HIGHcdx: Fix possible UAF error in driver_override_show()EPSS 0.2%CVE-2026-11698HIGHUse after free in Bluetooth in Google Chrome on Mac prior to 149.0.7827.103 allowed a remote attacker to potentially exploit heap corruptionEPSS 0.2%CVE-2023-53432HIGHfirewire: net: fix use after free in fwnet_finish_incoming_packet()EPSS 0.2%CVE-2026-11681HIGHUse after free in Ozone in Google Chrome on Linux prior to 149.0.7827.103 allowed a remote attacker to potentially exploit heap corruption vEPSS 0.2%CVE-2026-69682HIGHWindows Host Guardian Service Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-62780HIGHWindows Kernel Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-50669HIGHWindows Telephony Server Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-50403HIGHWindows Runtime Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-45596HIGHWindows Ancillary Function Driver for WinSock Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-26168HIGHWindows Ancillary Function Driver for WinSock Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-68824HIGHConnected User Experiences and Telemetry Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-62734HIGHWindows Telephony Service Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-62705HIGHMicrosoft Brokering File System Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-61927HIGHWindows Bind Filter Driver Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-69581HIGHWindows Device Association Service Elevation of Privilege VulnerabilityEPSS 0.2%