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-2025-59234HIGHMicrosoft Office Remote Code Execution VulnerabilityEPSS 0.6%CVE-2024-38253HIGHWindows Win32 Kernel Subsystem Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2025-21304HIGHMicrosoft DWM Core Library Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2024-38252HIGHWindows Win32 Kernel Subsystem Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2023-0128HIGHUse after free in Overview Mode in Google Chrome on Chrome OS prior to 109.0.5414.74 allowed a remote attacker who convinced a user to engagEPSS 0.6%CVE-2015-6564HIGHUse-after-free vulnerability in the mm_answer_pam_free_ctx function in monitor.c in sshd in OpenSSH before 7.0 on non-OpenBSD platforms mighEPSS 0.6%CVE-2026-59850MEDIUMLibssh: libssh: use-after-free via data callbacks on closed channelsEPSS 0.6%CVE-2024-34096HIGHZDI-CAN-23472: Adobe Acrobat Reader DC Annotation Use-After-Free Remote Code Execution VulnerabilityEPSS 0.6%CVE-2024-34095HIGHZDI-CAN-23475: Adobe Acrobat Reader DC Annotation Use-After-Free Remote Code Execution VulnerabilityEPSS 0.6%CVE-2024-53179CRITICALsmb: client: fix use-after-free of signing keyEPSS 0.6%CVE-2024-34097HIGHZDI-CAN-23473: Adobe Acrobat Reader DC Annotation Use-After-Free Remote Code Execution VulnerabilityEPSS 0.6%CVE-2023-29356HIGHMicrosoft ODBC Driver for SQL Server Remote Code Execution VulnerabilityEPSS 0.6%CVE-2023-25747HIGHA potential use-after-free in libaudio was fixed by disabling the AAudio backend when running on Android API below version 30. *This bug onlEPSS 0.6%CVE-2025-0899HIGHPDF-XChange Editor AcroForm Use-After-Free Remote Code Execution VulnerabilityEPSS 0.6%CVE-2025-36854HIGHEOL ASP.NET 6.0 Remote Code Execution VulnerabilityEPSS 0.6%CVE-2024-38921CRITICALOpen Robotics Robotic Operating System 2 (ROS2) and Nav2 humble versions were discovered to contain a use-after-free via the nav2_amcl proceEPSS 0.6%CVE-2026-9158MEDIUMIn Eclipse 4diac FORTE versions 3.0.0 to 3.1.0, a specially crafted DELETE connection command to the management interface can lead to a dangEPSS 0.6%CVE-2023-0928HIGHUse after free in SwiftShader in Google Chrome prior to 110.0.5481.177 allowed a remote attacker to potentially exploit heap corruption via EPSS 0.6%CVE-2023-0941HIGHUse after free in Prompts in Google Chrome prior to 110.0.5481.177 allowed a remote attacker to potentially exploit heap corruption via a crEPSS 0.6%CVE-2023-36804HIGHWindows GDI Elevation of Privilege VulnerabilityEPSS 0.6%