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-2026-79219HIGHUse after free in Bluetooth in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to execute arbitEPSS 0.4%CVE-2026-17875HIGHUse after free in PDFium in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via a EPSS 0.4%CVE-2026-12291HIGHUse-after-free in the Networking: HTTP componentEPSS 0.4%CVE-2026-87625HIGHUse after free in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to execute arbitrary coEPSS 0.4%CVE-2026-92005MEDIUMUse-after-free in the Audio/Video: Web Codecs componentEPSS 0.4%CVE-2025-59226HIGHMicrosoft Office Visio Remote Code Execution VulnerabilityEPSS 0.4%CVE-2025-59223HIGHMicrosoft Excel Remote Code Execution VulnerabilityEPSS 0.4%CVE-2025-26649HIGHWindows Secure Channel Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2024-0232MEDIUMSqlite: use-after-free bug in jsonparseaddnodearrayEPSS 0.4%CVE-2025-59225HIGHMicrosoft Excel Remote Code Execution VulnerabilityEPSS 0.4%CVE-2025-59238HIGHMicrosoft PowerPoint Remote Code Execution VulnerabilityEPSS 0.4%CVE-2024-7530CRITICALIncorrect garbage collection interaction could have led to a use-after-free. This vulnerability affects Firefox < 129.EPSS 0.4%CVE-2025-59224HIGHMicrosoft Excel Remote Code Execution VulnerabilityEPSS 0.4%CVE-2022-1050—A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. This flaw allows a crafted guest driver to execute HW commaEPSS 0.4%CVE-2026-27220HIGHAcrobat Reader | Use After Free (CWE-416)EPSS 0.4%CVE-2026-10655MEDIUMUse-after-free race in SNTP async client when closing the socket while the socket service is still polling itEPSS 0.4%CVE-2026-21921HIGHJunos OS and Junos OS Evolved: When telemetry collectors are frequently subscribing and unsubscribing to sensors chassisd or rpd will crashEPSS 0.4%CVE-2023-26384HIGHZDI-CAN-20279: Adobe Substance 3D Stager USD File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-52115HIGHThe iaware module has a Use-After-Free (UAF) vulnerability. Successful exploitation of this vulnerability may affect the system functions.EPSS 0.4%CVE-2023-26414HIGHZDI-CAN-20316: Adobe Substance 3D Designer USD File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.4%