Fallos del tipo CWE-416

5134 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-2022-49377HIGHblk-mq: don't touch ->tagset in blk_mq_get_sq_hctxEPSS 0.3%CVE-2022-49696HIGHtipc: fix use-after-free Read in tipc_named_reinitEPSS 0.3%CVE-2026-32156HIGHWindows UPnP Device Host Remote Code Execution VulnerabilityEPSS 0.3%CVE-2026-2804MEDIUMUse-after-free in the JavaScript: WebAssembly componentEPSS 0.3%CVE-2023-31974MEDIUMyasm v1.3.0 was discovered to contain a use after free via the function error at /nasm/nasm-pp.c. Note: Multiple third parties dispute this EPSS 0.3%CVE-2026-12007HIGHUse after free in Core in Google Chrome on Windows prior to 149.0.7827.115 allowed a remote attacker to execute arbitrary code via a craftedEPSS 0.3%CVE-2023-31725MEDIUMyasm 1.3.0.55.g101bc was discovered to contain a heap-use-after-free via the function expand_mmac_params at yasm/modules/preprocs/nasm/nasm-EPSS 0.3%CVE-2026-9887HIGHUse after free in Proxy in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code via a crafted PAC scripEPSS 0.3%CVE-2026-84125MEDIUMUse-after-free in the DOM: Core & HTML componentEPSS 0.3%CVE-2026-84118MEDIUMUse-after-free in the JavaScript: GC componentEPSS 0.3%CVE-2023-52973HIGHvc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAFEPSS 0.3%CVE-2026-10909HIGHUse after free in Dawn in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to potentiEPSS 0.3%CVE-2025-6645HIGHPDF-XChange Editor U3D File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.3%CVE-2026-10908HIGHUse after free in FullScreen in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer pEPSS 0.3%CVE-2025-6644HIGHPDF-XChange Editor U3D File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.3%CVE-2026-10894HIGHUse after free in Printing in Google Chrome on Linux prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer proceEPSS 0.3%CVE-2026-94055LOWExim before 4.100.1, when certain non-default TLS settings are used with GnuTLS, has a use-after-free.EPSS 0.3%CVE-2026-10900HIGHUse after free in Passwords in Google Chrome on Mac prior to 149.0.7827.53 allowed a remote attacker who convinced a user to engage in speciEPSS 0.3%CVE-2026-11010HIGHUse after free in WebShare in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer proEPSS 0.3%CVE-2026-10953HIGHUse after free in Core in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer processEPSS 0.3%