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-2025-55650MEDIUMA heap use-after-free in the gf_node_get_tag function (scenegraph/base_scenegraph.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial EPSS 0.2%CVE-2024-56600HIGHnet: inet6: do not leave a dangling sk pointer in inet6_create()EPSS 0.2%CVE-2026-11680HIGHUse after free in Media in Google Chrome on Windows prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sanEPSS 0.2%CVE-2025-14372MEDIUMUse after free in Password Manager in Google Chrome prior to 143.0.7499.110 allowed a remote attacker to potentially perform a sandbox escapEPSS 0.2%CVE-2024-56606HIGHaf_packet: avoid erroring out after sock_init_data() in packet_create()EPSS 0.2%CVE-2025-55644MEDIUMA heap use-after-free in the gf_node_get_tag function (scenegraph/base_scenegraph.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial EPSS 0.2%CVE-2024-56642HIGHtipc: Fix use-after-free of kernel socket in cleanup_bearer().EPSS 0.2%CVE-2026-10703MEDIUMEIPStackGroup OpENer SendRRData cipmessagerouter.c CreateMessageRouterRequestStructure use after freeEPSS 0.2%CVE-2026-11661HIGHUse after free in Views in Google Chrome on Windows prior to 149.0.7827.103 allowed a remote attacker who had compromised the renderer proceEPSS 0.2%CVE-2023-2513MEDIUMA use-after-free vulnerability was found in the Linux kernel's ext4 filesystem in the way it handled the extra inode size for extended attriEPSS 0.2%CVE-2023-52629HIGHsh: push-switch: Reorder cleanup operations to avoid use-after-free bugEPSS 0.2%CVE-2025-9385MEDIUMappneta tcpreplay tcprewrite edit_packet.c fix_ipv6_checksums use after freeEPSS 0.2%CVE-2026-11230HIGHUse after free in Extensions in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox viEPSS 0.2%CVE-2026-11652HIGHUse after free in Extensions in Google Chrome prior to 149.0.7827.103 allowed a remote attacker who had compromised the renderer process to EPSS 0.2%CVE-2022-1048—A use-after-free flaw was found in the Linux kernel’s sound subsystem in the way a user triggers concurrent calls of PCM hw_params. The hw_fEPSS 0.2%CVE-2026-34772MEDIUMElectron: Use-after-free in download save dialog callbackEPSS 0.2%CVE-2024-25385MEDIUMAn issue in flvmeta v.1.2.2 allows a local attacker to cause a denial of service via the flvmeta/src/flv.c:375:21 function in flv_close.EPSS 0.2%CVE-2023-4387HIGHKernel: vmxnet3: use-after-free in vmxnet3_rq_alloc_rx_buf()EPSS 0.2%CVE-2025-21715HIGHnet: davicom: fix UAF in dm9000_drv_removeEPSS 0.2%CVE-2024-26957HIGHs390/zcrypt: fix reference counting on zcrypt card objectsEPSS 0.2%