Weaknesses of type CWE-416

5,110 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-2026-8551HIGHUse after free in Downloads in Google Chrome prior to 148.0.7778.168 allowed a remote attacker who convinced a user to engage in specific UIEPSS 0.4%CVE-2026-13811HIGHUse after free in IME in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to execute arbitrary code inside a sandbox via a craEPSS 0.4%CVE-2026-14107HIGHUse after free in Scheduling in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to execute arbitrary code inside a sandbox viEPSS 0.4%CVE-2026-7348HIGHUse after free in Codecs in Google Chrome prior to 147.0.7727.138 allowed a remote attacker to execute arbitrary code inside a sandbox via aEPSS 0.4%CVE-2026-9126HIGHUse after free in DOM in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to execute arbitrary code inside a sandbox via aEPSS 0.4%CVE-2026-7356HIGHUse after free in Navigation in Google Chrome prior to 147.0.7727.138 allowed a remote attacker to execute arbitrary code via a crafted HTMLEPSS 0.4%CVE-2026-8522HIGHUse after free in Downloads in Google Chrome on Mac prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code via a crafteEPSS 0.4%CVE-2026-13845HIGHUse after free in DOM in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to execute arbitrary code inside a sandbox via a craEPSS 0.4%CVE-2026-9978HIGHUse after free in Glic in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a cEPSS 0.4%CVE-2026-13036HIGHUse after free in Blink in Google Chrome prior to 149.0.7827.197 allowed a remote attacker to execute arbitrary code inside a sandbox via a EPSS 0.4%CVE-2026-13888HIGHUse after free in Extensions in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to execute arbitrary code inside a sandbox viEPSS 0.4%CVE-2026-13038HIGHUse after free in Autofill in Google Chrome on Windows prior to 149.0.7827.197 allowed a remote attacker to execute arbitrary code via a craEPSS 0.4%CVE-2026-7363HIGHUse after free in Canvas in Google Chrome on Linux, ChromeOS prior to 147.0.7727.138 allowed a remote attacker to execute arbitrary code insEPSS 0.4%CVE-2026-13805HIGHUse after free in GFX in Google Chrome on Mac prior to 150.0.7871.47 allowed a remote attacker to execute arbitrary code via a crafted HTML EPSS 0.4%CVE-2026-9992HIGHUse after free in Network in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via EPSS 0.4%CVE-2026-9984HIGHUse after free in UI in Google Chrome on Windows prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code via a crafted HEPSS 0.4%CVE-2026-14091HIGHUse after free in DevTools in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to execute arbitrary code inside a sandbox via EPSS 0.4%CVE-2026-9873HIGHUse after free in Network in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via EPSS 0.4%CVE-2026-7358HIGHUse after free in Animation in Google Chrome prior to 147.0.7727.138 allowed a remote attacker to execute arbitrary code inside a sandbox viEPSS 0.4%CVE-2026-9118HIGHUse after free in XR in Google Chrome on Windows prior to 148.0.7778.179 allowed a remote attacker to execute arbitrary code via a crafted HEPSS 0.4%