Weaknesses of type CWE-416

5,043 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-2026-6317HIGHUse after free in Cast in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code via a crafted HTML page.EPSS 0.4%CVE-2026-14403HIGHUse after free in V8 in Google Chrome prior to 150.0.7871.46 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafEPSS 0.4%CVE-2026-79244HIGHUse after free in Animation in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to execute arbitrary code inside the sandbox vEPSS 0.4%CVE-2026-17694HIGHUse after free in DOM in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via a craEPSS 0.4%CVE-2026-6316HIGHUse after free in Forms in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a EPSS 0.4%CVE-2026-5861HIGHUse after free in V8 in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafEPSS 0.4%CVE-2026-6303HIGHUse after free in Codecs in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via aEPSS 0.4%CVE-2026-15118HIGHUse after free in Input in Google Chrome prior to 150.0.7871.115 allowed a remote attacker to execute arbitrary code inside a sandbox via a EPSS 0.4%CVE-2026-9947HIGHUse after free in XML in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a crEPSS 0.4%CVE-2026-16805HIGHUse after free in Blink in Google Chrome prior to 150.0.7871.186 allowed a remote attacker to execute arbitrary code inside a sandbox via a EPSS 0.4%CVE-2026-4680HIGHUse after free in FedCM in Google Chrome prior to 146.0.7680.165 allowed a remote attacker to execute arbitrary code inside a sandbox via a EPSS 0.4%CVE-2026-13965HIGHUse after free in Oilpan in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to execute arbitrary code inside a sandbox via a EPSS 0.4%CVE-2026-79198HIGHUse after free in Platform in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to execute arbitrary code inside the sandbox viEPSS 0.4%CVE-2026-87587HIGHUse after free in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code inside the sandbox via a crEPSS 0.4%CVE-2026-87617HIGHUse after free in DevTools in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to execute arbitrEPSS 0.4%CVE-2026-79202HIGHUse after free in Chromecast in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to execute arbitrary code inside the sandbox EPSS 0.4%CVE-2026-79197HIGHUse after free in V8 in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to execute arbitrary code inside the sandbox via a crEPSS 0.4%CVE-2026-9897HIGHUse after free in DOM in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a crEPSS 0.4%CVE-2026-17836HIGHUse after free in V8 in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafEPSS 0.4%CVE-2026-5877HIGHUse after free in Navigation in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code inside a sandbox viEPSS 0.4%