Falhas do tipo CWE-416

5.131 resultados

Uso após liberação de memória

Ocorre quando o código tenta acessar (ler ou escrever) um bloco de memória que já foi liberado (free, delete). O programa mantém um ponteiro para a memória, mas o sistema operacional pode reatribuir essa região para outro uso, causando corrupção de dados, travamento ou execução de código arbitrário.

Exemplo

Um servidor web aloca memória para armazenar dados de sessão do usuário, depois libera essa memória quando a sessão encerra. Se uma thread continuar tentando acessar essa sessão após a liberação, pode ler dados de outra sessão ou sobrescrever dados críticos de outro processo.

Como mitigar

Sempre anule ponteiros após liberar memória (ptr = NULL), use variáveis de controle para rastrear estado de alocação, implemente gerenciamento automático de memória quando possível (smart pointers em C++), e execute testes com sanitizers (AddressSanitizer, Valgrind) durante desenvolvimento e CI/CD.

CVE-2025-29699MEDIUMNetSurf 3.11 is vulnerable to Use After Free in dom_node_set_text_content function.EPSS 0.3%CVE-2024-27052HIGHwifi: rtl8xxxu: add cancel_work_sync() for c2hcmd_workEPSS 0.3%CVE-2026-17920HIGHUse after free in V8 in Google Chrome prior to 151.0.7922.72 allowed an attacker who convinced a user to install a malicious extension to exEPSS 0.3%CVE-2022-49059HIGHnfc: nci: add flush_workqueue to prevent uafEPSS 0.3%CVE-2024-8816LOWPDF-XChange Editor U3D File Parsing Use-After-Free Information Disclosure VulnerabilityEPSS 0.3%CVE-2026-74222HIGHU-Boot before 2026.10-rc5 Use-After-Free in lwIP wget Receive CallbackEPSS 0.3%CVE-2023-33288MEDIUMAn issue was discovered in the Linux kernel before 6.2.9. A use-after-free was found in bq24190_remove in drivers/power/supply/bq24190_chargEPSS 0.3%CVE-2025-47106MEDIUMInDesign Desktop | Use After Free (CWE-416)EPSS 0.3%CVE-2026-50459HIGHWindows Kernel Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-13774HIGHUse after free in Extensions in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extensiEPSS 0.3%CVE-2026-12293CRITICALUse-after-free in the Graphics: WebGPU componentEPSS 0.3%CVE-2026-92021HIGHUse-after-free in the JavaScript Engine: JIT componentEPSS 0.3%CVE-2026-10932HIGHUse after free in UI in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker to potentially exploit heap corruption viaEPSS 0.3%CVE-2024-9729HIGHTrimble SketchUp Viewer SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.3%CVE-2025-48000HIGHWindows Connected Devices Platform Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2024-9748HIGHTungsten Automation Power PDF XPS File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.3%CVE-2026-12441HIGHUse after free in File Input in Google Chrome on Linux prior to 149.0.7827.155 allowed a remote attacker to potentially exploit heap corruptEPSS 0.3%CVE-2026-100800CRITICALSandbox escape due to use-after-free in the Disability Access APIs componentEPSS 0.3%CVE-2025-31197MEDIUMThe issue was addressed with improved checks. This issue is fixed in iOS 18.4 and iPadOS 18.4, iPadOS 17.7.6, macOS Sequoia 15.4, macOS SonoEPSS 0.3%CVE-2026-11042HIGHUse after free in Views in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who convinced a user to engage in specific UI gestEPSS 0.3%