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-2026-45458HIGHMicrosoft Outlook and Word Remote Code Execution VulnerabilityEPSS 0.4%CVE-2024-9252LOWFoxit PDF Reader AcroForm Use-After-Free Information Disclosure VulnerabilityEPSS 0.4%CVE-2025-43574HIGHAcrobat Reader | Use After Free (CWE-416)EPSS 0.4%CVE-2024-9251LOWFoxit PDF Reader Annotation Use-After-Free Information Disclosure VulnerabilityEPSS 0.4%CVE-2025-43573HIGHAcrobat Reader | Use After Free (CWE-416)EPSS 0.4%CVE-2023-40489HIGHMaxon Cinema 4D SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-77358HIGHcpp-httplib: Use-after-free of TLS session in WebSocketClient::shutdown_and_close()EPSS 0.4%CVE-2023-50193HIGHTrimble SketchUp Viewer SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.4%CVE-2025-0995HIGHUse after free in V8 in Google Chrome prior to 133.0.6943.98 allowed a remote attacker to potentially exploit heap corruption via a crafted EPSS 0.4%CVE-2023-50192HIGHTrimble SketchUp Viewer SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-50191HIGHTrimble SketchUp Viewer SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-50189HIGHTrimble SketchUp Viewer SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-8090HIGHUse-after-free in the DOM: Networking componentEPSS 0.4%CVE-2026-8947HIGHUse-after-free in the DOM: Bindings (WebIDL) componentEPSS 0.4%CVE-2025-50518CRITICALA use-after-free vulnerability exists in the coap_delete_pdu_lkd function within coap_pdu.c of the libcoap library. This issue occurs due toEPSS 0.4%CVE-2020-36694MEDIUMAn issue was discovered in netfilter in the Linux kernel before 5.10. There can be a use-after-free in the packet processing context, becausEPSS 0.4%CVE-2025-48008HIGHBIG-IP MPTCP vulnerabilityEPSS 0.4%CVE-2026-47207MEDIUMEnvoy crashes if multiple unexpected ext_proc responses are packed into one gRPC messageEPSS 0.4%CVE-2024-30302MEDIUMZDI-CAN-23077: Adobe Acrobat Reader DC AcroForm Use-After-Free Information Disclosure VulnerabilityEPSS 0.4%CVE-2021-29117HIGHarcreader use-after-freeEPSS 0.4%