Weaknesses of type CWE-416

5,184 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-2025-60486MEDIUMA heap use-after-free in the dasher_process function (/filters/dasher.c) of GPAC Project/MP4Box before 26.02.0 allows attackers to cause a DEPSS 0.1%CVE-2022-20561HIGHIn TBD of aud_hal_tunnel.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege EPSS 0.1%CVE-2024-43701HIGHGPU DDK - PowerVR: TLB invalidate UAF of dma_buf imported into multiple GPU devicesEPSS 0.1%CVE-2026-24914MEDIUMType confusion vulnerability in the camera module. Impact: Successful exploitation of this vulnerability may affect availability.EPSS 0.1%CVE-2026-96889HIGHLibrsvg: use-after-free when xml includes have duplicated entitiesEPSS 0.1%CVE-2023-20925HIGHIn setUclampMinLocked of PowerSessionManager.cpp, there is a possible way to corrupt memory due to a use after free. This could lead to locaEPSS 0.1%CVE-2025-58408MEDIUMGPU DDK - KASAN Read UAF in the PVRSRVBridgeRGXSubmitTransfer2 due to improper error handling codeEPSS 0.1%CVE-2025-10865HIGHGPU DDK - DevmemIntGetReservationData does not ref the PMR it returnsEPSS 0.1%CVE-2026-24099MEDIUMUse after free for some Intel(R) PROSet/Wireless WiFi Software for Windows within Ring 0: Kernel may allow a denial of service. System softwEPSS 0.1%CVE-2024-38401HIGHUse After Free in Qualcomm IPCEPSS 0.1%CVE-2026-95834MEDIUMUse after free in the kitty drag and drop protocol when a drag source item is aborted mid-transferEPSS 0.1%CVE-2026-11742LOWUse-after-free race in kernel `k_queue_peek_head/tail` due to missing spinlockEPSS 0.1%CVE-2026-12365MEDIUMUse-after-free in Zephyr delayable work-queue cancellation under SMP timing raceEPSS 0.1%CVE-2026-2408MEDIUMUse-after-free in Cloud WorkloadsEPSS 0.1%CVE-2022-25677MEDIUMMemory corruption in diag due to use after free while processing dci packet in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT,EPSS 0.1%CVE-2026-91793HIGHFoxit PDF Editor/Reader Doc Object Use-After-Free Information Disclosure VulnerabilityEPSS 0.1%CVE-2026-47579HIGHThe NVIDIA GPU Display Driver for Windows contains a vulnerability in the kernel mode driver through which a user might trigger a use-after-EPSS 0.1%CVE-2026-91792HIGHFoxit PDF Editor/Reader Annotation Use-After-Free Remote Code Execution VulnerabilityEPSS 0.1%CVE-2026-49417HIGHMultiple vulnerabilities in the sound(4) mmap pathEPSS 0.1%CVE-2026-91790HIGHFoxit PDF Editor/Reader Doc Object Use-After-Free Information Disclosure VulnerabilityEPSS 0.1%