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-2026-87657LOWUse after free in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to read memoEPSS 0.2%CVE-2025-21928HIGHHID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove()EPSS 0.2%CVE-2025-61801HIGHDimension | Use After Free (CWE-416)EPSS 0.2%CVE-2025-12437HIGHUse after free in PageInfo in Google Chrome prior to 142.0.7444.59 allowed a remote attacker who convinced a user to engage in specific UI gEPSS 0.2%CVE-2026-92627MEDIUMHeap Use-After-Free in H5T__conv_f_fEPSS 0.2%CVE-2026-11073MEDIUMUse after free in WebGL in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to obtain potentially sensitive information from pEPSS 0.2%CVE-2026-11208MEDIUMUse after free in Codecs in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to obtain potentially sensitive information from EPSS 0.2%CVE-2026-12028HIGHUse after free in GPU in Google Chrome on Android prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer processEPSS 0.2%CVE-2025-5644LOWRadare2 radiff2 cons.c r_cons_flush use after freeEPSS 0.2%CVE-2024-56675HIGHbpf: Fix UAF via mismatching bpf_prog/attachment RCU flavorsEPSS 0.2%CVE-2026-12023HIGHUse after free in GPU in Google Chrome on Mac prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to EPSS 0.2%CVE-2022-48637HIGHbnxt: prevent skb UAF after handing over to PTP workerEPSS 0.2%CVE-2024-56602HIGHnet: ieee802154: do not leave a dangling sk pointer in ieee802154_create()EPSS 0.2%CVE-2024-1312MEDIUMKernel: race condition leads to use after free during vma lock in lock_vma_under_rcuEPSS 0.2%CVE-2025-21999HIGHproc: fix UAF in proc_get_inode()EPSS 0.2%CVE-2026-11305HIGHUse after free in PDFium in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a EPSS 0.2%CVE-2024-50130HIGHnetfilter: bpf: must hold reference on net namespaceEPSS 0.2%CVE-2024-0217LOWPackagekitd: use-after-free in idle function callbackEPSS 0.2%CVE-2026-11307HIGHUse after free in PDFium in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a EPSS 0.2%CVE-2025-12205MEDIUMKamailio Configuration File cfg.lex sr_push_yy_state use after freeEPSS 0.2%