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-2026-8575HIGHUse after free in UI in Google Chrome prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer process to potentiaEPSS 0.3%CVE-2026-7970HIGHUse after free in TopChrome in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to poEPSS 0.3%CVE-2026-8557HIGHUse after free in Accessibility in Google Chrome prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer process EPSS 0.3%CVE-2026-7350HIGHUse after free in WebMIDI in Google Chrome prior to 147.0.7727.138 allowed a remote attacker who had compromised the renderer process to potEPSS 0.3%CVE-2026-7352HIGHUse after free in Media in Google Chrome on Android prior to 147.0.7727.138 allowed a remote attacker who had compromised the renderer proceEPSS 0.3%CVE-2026-9990HIGHUse after free in WebAppInstalls in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker who convinced a user to engage inEPSS 0.3%CVE-2026-8514HIGHUse after free in Aura in Google Chrome prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer process to potentEPSS 0.3%CVE-2026-8512HIGHUse after free in FileSystem in Google Chrome prior to 148.0.7778.168 allowed a remote attacker who convinced a user to engage in specific UEPSS 0.3%CVE-2026-8515HIGHUse after free in HID in Google Chrome prior to 148.0.7778.168 allowed a remote attacker who convinced a user to engage in specific UI gestuEPSS 0.3%CVE-2026-9881CRITICALUse 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-2026-9988HIGHUse after free in WebRTC in Google Chrome on Linux prior to 148.0.7778.216 allowed a remote attacker to potentially perform a sandbox escapeEPSS 0.3%CVE-2025-0622MEDIUMGrub2: command/gpg: use-after-free due to hooks not being removed on module unloadEPSS 0.3%CVE-2025-1916HIGHUse after free in Profiles in Google Chrome prior to 134.0.6998.35 allowed an attacker who convinced a user to install a malicious extensionEPSS 0.3%CVE-2026-8542HIGHUse after free in Core in Google Chrome on Windows prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer procesEPSS 0.3%CVE-2026-7343HIGHUse after free in Views in Google Chrome on Windows prior to 147.0.7727.138 allowed a remote attacker who had compromised the renderer proceEPSS 0.3%CVE-2026-85049HIGHUse after free in Skia in Google Chrome prior to 152.0.7977.82 allowed a remote attacker to execute arbitrary code inside the sandbox via a EPSS 0.3%CVE-2026-8530HIGHUse after free in Network in Google Chrome on Windows prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer proEPSS 0.3%CVE-2026-8523HIGHUse after free in Mojo in Google Chrome prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer process to potentEPSS 0.3%CVE-2022-49078HIGHlz4: fix LZ4_decompress_safe_partial read out of boundEPSS 0.3%CVE-2026-8513HIGHUse after free in Input in Google Chrome on Android prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer proceEPSS 0.3%