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-2024-50264HIGHvsock/virtio: Initialization of the dangling pointer occurring in vsk->transEPSS 0.4%CVE-2023-43552CRITICALUse After Free in WLAN Host CommunicationEPSS 0.4%CVE-2023-26426HIGHAdobe Illustrator (Beta) has a UAF vulnerability when parsing SVG files Arbitrary code executionEPSS 0.4%CVE-2026-61860MEDIUMImageMagick before 7.1.2-26 Use-After-Free via freetypeEPSS 0.4%CVE-2026-9114HIGHUse after free in QUIC in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to execute arbitrary code inside a sandbox via EPSS 0.4%CVE-2025-27160HIGHAcrobat Reader | Use After Free (CWE-416)EPSS 0.4%CVE-2026-13035HIGHUse after free in Bluetooth in Google Chrome on Mac prior to 149.0.7827.197 allowed a remote attacker to execute arbitrary code via a maliciEPSS 0.4%CVE-2024-27929HIGHUse After Free in SixLabors.ImageSharpEPSS 0.4%CVE-2025-27159HIGHAcrobat Reader | Use After Free (CWE-416)EPSS 0.4%CVE-2026-14108HIGHUse after free in PDFium in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to execute arbitrary code inside a sandbox via a EPSS 0.4%CVE-2025-27174HIGHAcrobat Reader | Use After Free (CWE-416)EPSS 0.4%CVE-2025-13845HIGHCWE-416: Use After Free vulnerability that could cause remote code execution when the end user imports the malicious project file (SSD file)EPSS 0.4%CVE-2021-3715—A flaw was found in the "Routing decision" classifier in the Linux kernel's Traffic Control networking subsystem in the way it handled changEPSS 0.4%CVE-2023-34475—A heap use after free issue was discovered in ImageMagick's ReplaceXmpValue() function in MagickCore/profile.c. An attacker could trick userEPSS 0.4%CVE-2026-4684HIGHRace condition, use-after-free in the Graphics: WebRender componentEPSS 0.4%CVE-2025-49726HIGHWindows Notification Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2024-45138HIGHSubstance3D - Stager | Use After Free (CWE-416)EPSS 0.4%CVE-2024-43374MEDIUMVim heap-use-after-free in src/arglist.c:207EPSS 0.4%CVE-2022-3636MEDIUMLinux Kernel Ethernet mtk_ppe.c __mtk_ppe_check_skb use after freeEPSS 0.4%CVE-2026-10638MEDIUMUse-after-free in Zephyr ICMPv6 RX path when updating statistics after sending an echo reply or errorEPSS 0.4%