Weaknesses of type CWE-416

5,138 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-2025-3212MEDIUMMali GPU Kernel Driver allows access to already freed memoryEPSS 0.3%CVE-2024-39495HIGHgreybus: Fix use-after-free bug in gb_interface_release due to race condition.EPSS 0.3%CVE-2026-10891HIGHUse after free in GFX in Google Chrome on Linux prior to 149.0.7827.53 allowed a remote attacker to potentially exploit heap corruption via EPSS 0.3%CVE-2026-10931CRITICALUse after free in FileSystem in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to potentially perform a sandbox escape via aEPSS 0.3%CVE-2022-47093HIGHGPAC MP4box 2.1-DEV-rev574-g9d5bb184b is vulnerable to heap use-after-free via filters/dmx_m2ts.c:470 in m2tsdmx_declare_pidEPSS 0.3%CVE-2026-9964HIGHUse after free in Bluetooth in Google Chrome on Mac prior to 148.0.7778.216 allowed an attacker who convinced a user to install a malicious EPSS 0.3%CVE-2026-20844HIGHWindows Clipboard Server Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-10972CRITICALUse after free in Ozone in Google Chrome on Linux prior to 149.0.7827.53 allowed a remote attacker to potentially perform a sandbox escape vEPSS 0.3%CVE-2026-11009CRITICALUse after free in USB in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker to potentially perform a sandbox escape vEPSS 0.3%CVE-2026-14032HIGHUse after free in Bluetooth in Google Chrome on Mac prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious eEPSS 0.3%CVE-2023-1249MEDIUMA use-after-free flaw was found in the Linux kernel’s core dump subsystem. This flaw allows a local user to crash the system. Only if patch EPSS 0.3%CVE-2026-15777HIGHUse after free in UI in Google Chrome on Linux prior to 150.0.7871.125 allowed a remote attacker who convinced a user to engage in specific EPSS 0.3%CVE-2025-47991HIGHWindows Input Method Editor (IME) Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2025-62788MEDIUMWazuh Vulnerable to Heap Use After Free in w_copy_event_for_logEPSS 0.3%CVE-2026-80093HIGHWindows Cloud Files Mini Filter Driver Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2024-9725HIGHTrimble SketchUp Viewer SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.3%CVE-2026-6359HIGHUse after free in Video in Google Chrome on Windows prior to 147.0.7727.101 allowed a remote attacker who had compromised the renderer proceEPSS 0.3%CVE-2024-9727HIGHTrimble SketchUp Viewer SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.3%CVE-2024-53171HIGHubifs: authentication: Fix use-after-free in ubifs_tnc_end_commitEPSS 0.3%CVE-2025-11460HIGHUse after free in Storage in Google Chrome prior to 141.0.7390.65 allowed a remote attacker to execute arbitrary code via a crafted video fiEPSS 0.3%