Weaknesses of type CWE-416

5,143 results

Uso após liberação de memória

Ocorre quando o código tenta acessar um bloco de memória que já foi desalocado (free/delete). O ponteiro continua apontando para aquele endereço, mas o dado ali pode ter sido sobrescrito por outra operação, causando comportamento impredizível, corrupção de dados ou execução de código arbitrário.

Example

Um buffer é alocado, depois liberado com free(). Mais adiante, o código ainda tenta ler ou escrever naquele mesmo ponteiro sem verificar. Se um atacante controlar a alocação subsequente daquele endereço, consegue manipular o conteúdo que será lido.

How to mitigate

Anule o ponteiro imediatamente após liberar (ptr = NULL), implemente análise estática para detectar acessos pós-liberação, use ferramentas como valgrind ou AddressSanitizer nos testes, e considere linguagens com gerenciamento automático de memória para código sensível.

CVE-2025-21739HIGHscsi: ufs: core: Fix use-after free in init error and remove pathsEPSS 0.2%CVE-2025-54232HIGHAdobe Framemaker | Use After Free (CWE-416)EPSS 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-2025-54230HIGHAdobe Framemaker | Use After Free (CWE-416)EPSS 0.2%CVE-2022-49840HIGHbpf, test_run: Fix alignment problem in bpf_prog_test_run_skb()EPSS 0.2%CVE-2025-54231HIGHAdobe Framemaker | Use After Free (CWE-416)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-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-2025-22097HIGHdrm/vkms: Fix use after free and double free on init errorEPSS 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-2026-11647HIGHUse 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-2024-53218HIGHf2fs: fix race in concurrent f2fs_stop_gc_threadEPSS 0.2%CVE-2026-100805HIGHRace condition, use-after-free in the Audio/Video componentEPSS 0.2%CVE-2025-21727HIGHpadata: fix UAF in padata_reorderEPSS 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-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-2026-11631HIGHUse 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-2024-2937HIGHMali GPU Kernel Driver allows improper GPU memory processing operationsEPSS 0.2%CVE-2024-27530HIGHwasm3 139076a contains a Use-After-Free in ForEachModule.EPSS 0.2%