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-2026-58608HIGHWindows Print Spooler Remote Code Execution VulnerabilityEPSS 0.6%CVE-2022-38457MEDIUMThere is an UAF vulnerability in vmwgfx driverEPSS 0.6%CVE-2025-26629HIGHMicrosoft Office Remote Code Execution VulnerabilityEPSS 0.6%CVE-2023-48633HIGHZDI-CAN-22173: Adobe After Effects AEP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.6%CVE-2025-53740HIGHMicrosoft Office Remote Code Execution VulnerabilityEPSS 0.6%CVE-2025-53731HIGHMicrosoft Office Remote Code Execution VulnerabilityEPSS 0.6%CVE-2025-62565HIGHWindows File Explorer Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2024-38248HIGHWindows Storage Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2023-4752HIGHUse After Free in vim/vimEPSS 0.6%CVE-2023-51610LOWKofax Power PDF JP2 File Parsing Use-After-Free Information Disclosure VulnerabilityEPSS 0.6%CVE-2024-53095CRITICALsmb: client: Fix use-after-free of network namespace.EPSS 0.6%CVE-2023-4147HIGHKernel: netfilter: nf_tables_newrule when adding a rule with nfta_rule_chain_id leads to use-after-freeEPSS 0.6%CVE-2026-28859MEDIUMThe issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, tvOS EPSS 0.6%CVE-2026-80229HIGHOpenSSL provider use-after-freeEPSS 0.6%CVE-2024-30305HIGHZDI-CAN-23043: Adobe Acrobat Reader DC AcroForm Use-After-Free Remote Code Execution VulnerabilityEPSS 0.6%CVE-2024-20765HIGHZDI-CAN-22674: Adobe Acrobat Reader DC PDF File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.6%CVE-2024-30304HIGHZDI-CAN-23040: Adobe Acrobat Reader DC Annotation Use-After-Free Remote Code Execution VulnerabilityEPSS 0.6%CVE-2024-30301HIGHZDI-CAN-23042: Adobe Acrobat Reader DC AcroForm Use-After-Free Remote Code Execution VulnerabilityEPSS 0.6%CVE-2024-8362HIGHUse after free in WebAudio in Google Chrome prior to 128.0.6613.119 allowed a remote attacker to potentially exploit heap corruption via a cEPSS 0.6%CVE-2023-52584LOWspmi: mediatek: Fix UAF on device removeEPSS 0.6%