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-2026-84353CRITICALUse after free in Shared Tab Groups in Google Chrome on on Android prior to 152.0.7977.75 allowed a remote attacker leveraging social engineEPSS 0.5%CVE-2026-87455CRITICALUse after free in Aura in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to potentially execute arbitrary code outside the sEPSS 0.5%CVE-2026-87634CRITICALUse after free in WebPackaging in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to potentially execute arbitrary code outsiEPSS 0.5%CVE-2026-79047CRITICALUse after free in Views in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to execute arbitraryEPSS 0.5%CVE-2024-5845HIGHUse after free in Audio in Google Chrome prior to 126.0.6478.54 allowed a remote attacker to potentially exploit heap corruption via a craftEPSS 0.5%CVE-2026-24285HIGHWin32k Elevation of Privilege VulnerabilityEPSS 0.5%CVE-2026-79290CRITICALUse after free in Aura in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to execute arbitrary code outside the sandbox via aEPSS 0.5%CVE-2026-78909CRITICALUse after free in Views in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to execute arbitraryEPSS 0.5%CVE-2026-78937CRITICALUse after free in Search in Google Chrome on on Android prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to poEPSS 0.5%CVE-2026-79200CRITICALUse after free in Aura in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to execute arbitrary code outside the sandbox via aEPSS 0.5%CVE-2026-79232CRITICALUse after free in Aura in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to potentially execute arbitrary code outside the sEPSS 0.5%CVE-2026-79078CRITICALUse after free in FedCM in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to execute arbitraryEPSS 0.5%CVE-2026-87494CRITICALUse after free in Browser in Google Chrome on on Windows prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to eEPSS 0.5%CVE-2026-87558CRITICALUse after free in Payments in Google Chrome on on Mac prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code outside theEPSS 0.5%CVE-2026-87581CRITICALUse after free in Payments in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to potentially exEPSS 0.5%CVE-2026-87448CRITICALUse after free in DevTools in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code outside the sandbox vEPSS 0.5%CVE-2026-2798HIGHUse-after-free in the DOM: Core & HTML componentEPSS 0.5%CVE-2026-79052CRITICALUse after free in Aura in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to execute arbitrary code outside the sandbox via aEPSS 0.5%CVE-2026-84352CRITICALUse after free in WebGL in Google Chrome on on Android prior to 152.0.7977.75 allowed a remote attacker to execute arbitrary code outside thEPSS 0.5%CVE-2026-5278HIGHUse after free in Web MIDI in Google Chrome on Android prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code via a craEPSS 0.5%