Falhas do tipo CWE-416

5.138 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-2025-54231HIGHAdobe Framemaker | Use After Free (CWE-416)EPSS 0.2%CVE-2025-54232HIGHAdobe Framemaker | Use After Free (CWE-416)EPSS 0.2%CVE-2025-21797HIGHHID: corsair-void: Add missing delayed work cancel for headset statusEPSS 0.2%CVE-2026-6362MEDIUMUse after free in Codecs in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to potentially perform out of bounds memory acceEPSS 0.2%CVE-2025-54230HIGHAdobe Framemaker | Use After Free (CWE-416)EPSS 0.2%CVE-2024-57801HIGHnet/mlx5e: Skip restore TC rules for vport rep without loaded flagEPSS 0.2%CVE-2023-0030HIGHA use-after-free flaw was found in the Linux kernel’s nouveau driver in how a user triggers a memory overflow that causes the nvkm_vma_tail EPSS 0.2%CVE-2026-5273MEDIUMUse after free in CSS in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code inside a sandbox via a crEPSS 0.2%CVE-2026-11647HIGHUse after free in Printing in Google Chrome on Android prior to 149.0.7827.103 allowed a remote attacker who had compromised the renderer prEPSS 0.2%CVE-2026-12464HIGHUse after free in Browser in Google Chrome prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to potEPSS 0.2%CVE-2025-21727HIGHpadata: fix UAF in padata_reorderEPSS 0.2%CVE-2025-21861MEDIUMmm/migrate_device: don't add folio to be freed to LRU in migrate_device_finalize()EPSS 0.2%CVE-2024-2937HIGHMali GPU Kernel Driver allows improper GPU memory processing operationsEPSS 0.2%CVE-2024-53216HIGHnfsd: release svc_expkey/svc_export with rcu_workEPSS 0.2%CVE-2026-11631HIGHUse after free in Aura in Google Chrome on Windows prior to 149.0.7827.103 allowed a remote attacker who had compromised the renderer procesEPSS 0.2%CVE-2026-11635HIGHUse after free in Bluetooth in Google Chrome on Mac prior to 149.0.7827.103 allowed a remote attacker who had compromised the renderer proceEPSS 0.2%CVE-2026-12467HIGHUse after free in Extensions in Google Chrome prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to EPSS 0.2%CVE-2024-9126HIGHUse after free in Internals in Google Chrome on iOS prior to 127.0.6533.88 allowed a remote attacker who convinced a user to engage in speciEPSS 0.2%CVE-2026-11636HIGHUse after free in Autofill in Google Chrome on Windows prior to 149.0.7827.103 allowed a remote attacker who convinced a user to engage in sEPSS 0.2%CVE-2026-9932HIGHUse after free in ANGLE in Google Chrome on Windows prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer proceEPSS 0.2%