Weaknesses of type CWE-416

5,149 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-2026-19108MEDIUMMZ Automation libiec61850 URCB Revalidation reporting.c deleteDataSetValuesShadowBuffer use after freeEPSS 0.2%CVE-2022-50378HIGHdrm/meson: reorder driver deinit sequence to fix use-after-free bugEPSS 0.2%CVE-2022-49919HIGHnetfilter: nf_tables: release flow rule object from commit pathEPSS 0.2%CVE-2026-17891MEDIUMUse after free in ANGLE in Google Chrome on Android prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer procesEPSS 0.2%CVE-2026-65377MEDIUMA memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27EPSS 0.2%CVE-2026-12445HIGHUse after free in Extensions in Google Chrome prior to 149.0.7827.155 allowed an attacker who convinced a user to install a malicious extensEPSS 0.2%CVE-2025-39863HIGHwifi: brcmfmac: fix use-after-free when rescheduling brcmf_btcoex_info workEPSS 0.2%CVE-2026-84552MEDIUMThe issue was addressed with improved memory handling. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden GEPSS 0.2%CVE-2024-1067HIGHMali GPU Kernel Driver allows improper GPU memory processing operationsEPSS 0.2%CVE-2024-41160HIGHLiteos-A has an use after free vulnerabilityEPSS 0.2%CVE-2023-53263HIGHdrm/nouveau/disp: fix use-after-free in error handling of nouveau_connector_createEPSS 0.2%CVE-2024-10074HIGHLiteos_a has an use after free vulnerabilityEPSS 0.2%CVE-2026-77235HIGHMissing privilege check in SecureContext_FreeContext in FreeRTOS-KernelEPSS 0.2%CVE-2025-23098HIGHAn issue was discovered in Samsung Mobile Processor Exynos 980, 990, 1080, 2100, 1280, 2200, 1380. A Use-After-Free in the mobile processor EPSS 0.2%CVE-2022-50421HIGHrpmsg: char: Avoid double destroy of default endpointEPSS 0.2%CVE-2026-14048MEDIUMUse after free in Chromecast in Google Chrome prior to 150.0.7871.47 allowed an attacker on the local network segment to obtain potentially EPSS 0.2%CVE-2023-5447MEDIUMUse-After-Free in Service for Hardware Support App for Fingerprint DriverEPSS 0.2%CVE-2026-13879MEDIUMUse after free in Bluetooth in Google Chrome prior to 150.0.7871.47 allowed an attacker on the local network segment to obtain potentially sEPSS 0.2%CVE-2024-23354HIGHUse After Free in Graphics LinuxEPSS 0.2%CVE-2026-73071LOWVim: Use-after-free in JSON DecodingEPSS 0.2%