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-2026-40361HIGHMicrosoft Outlook and Word Remote Code Execution VulnerabilityEPSS 0.4%CVE-2022-44518HIGHAcrobat Reader | Use After Free (CWE-416)EPSS 0.4%CVE-2026-49798CRITICALWindows Kernel Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2022-44520HIGHAcrobat Reader | Use After Free (CWE-416)EPSS 0.4%CVE-2026-40402CRITICALWindows Hyper-V Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-45474HIGHMicrosoft Office Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-40358HIGHMicrosoft Office Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-32190HIGHMicrosoft Office Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-40366HIGHMicrosoft Word Remote Code Execution VulnerabilityEPSS 0.4%CVE-2025-53718HIGHWindows Ancillary Function Driver for WinSock Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-30978HIGHHeap-use-after-free in CIccCmm::AddXform()EPSS 0.4%CVE-2026-17896HIGHUse after free in DevTools in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via EPSS 0.4%CVE-2026-13802HIGHUse after free in Views in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who convinced a user to engage in specific UI gestEPSS 0.4%CVE-2026-14426HIGHUse after free in V8 in Google Chrome prior to 150.0.7871.46 allowed a remote attacker who convinced a user to engage in specific UI gestureEPSS 0.4%CVE-2026-6319HIGHUse after free in Payments in Google Chrome on Android prior to 147.0.7727.101 allowed a remote attacker who convinced a user to engage in sEPSS 0.4%CVE-2026-14064HIGHUse after free in PageInfo in Google Chrome on Android prior to 150.0.7871.47 allowed a remote attacker who convinced a user to engage in spEPSS 0.4%CVE-2026-9901HIGHUse after free in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to execuEPSS 0.4%CVE-2026-9956HIGHUse after free in iOS in Google Chrome on iOS prior to 148.0.7778.216 allowed a remote attacker who convinced a user to engage in specific UEPSS 0.4%CVE-2026-9934HIGHUse after free in Aura in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who convinced a user to engage in specific UI gestEPSS 0.4%CVE-2026-9922HIGHUse after free in GPU in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to EPSS 0.4%