Weaknesses of type CWE-416

5,138 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-2026-6359HIGHUse after free in Video in Google Chrome on Windows prior to 147.0.7727.101 allowed a remote attacker who had compromised the renderer proceEPSS 0.3%CVE-2024-53171HIGHubifs: authentication: Fix use-after-free in ubifs_tnc_end_commitEPSS 0.3%CVE-2024-9728HIGHTrimble SketchUp Viewer SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.3%CVE-2024-9725HIGHTrimble SketchUp Viewer SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.3%CVE-2024-9722HIGHTrimble SketchUp Viewer SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.3%CVE-2023-31518MEDIUMA heap use-after-free in the component CDataFileReader::GetItem of teeworlds v0.7.5 allows attackers to cause a Denial of Service (DoS) via EPSS 0.3%CVE-2023-0469MEDIUMA use-after-free flaw was found in io_uring/filetable.c in io_install_fixed_file in the io_uring subcomponent in the Linux Kernel during calEPSS 0.3%CVE-2025-8576HIGHUse after free in Extensions in Google Chrome prior to 139.0.7258.66 allowed a remote attacker to potentially exploit heap corruption via a EPSS 0.3%CVE-2026-9927HIGHUse after free in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a EPSS 0.3%CVE-2025-59215HIGHWindows Graphics Component Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2025-53768HIGHXbox IStorageService Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-9941HIGHUse after free in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a EPSS 0.3%CVE-2022-42829MEDIUMA use after free issue was addressed with improved memory management. This issue is fixed in iOS 16.1 and iPadOS 16, macOS Ventura 13. An apEPSS 0.3%CVE-2026-28688MEDIUMImageMagick has a heap use-after-free in the MSL encoderEPSS 0.3%CVE-2026-13799HIGHUse after free in QUIC in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to potentially exploit heap corruption via maliciouEPSS 0.3%CVE-2025-53150HIGHWindows Digital Media Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-56376MEDIUMImageMagick - Heap Use-After-Free in Meta CoderEPSS 0.3%CVE-2026-9958HIGHUse after free in PDFium in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to potentially exploit heap corruption via a craEPSS 0.3%CVE-2026-14099HIGHUse after free in Chrome for iOS in Google Chrome on iOS prior to 150.0.7871.47 allowed a remote attacker who convinced a user to engage in EPSS 0.3%CVE-2023-51042HIGHIn the Linux kernel before 6.4.12, amdgpu_cs_wait_all_fences in drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c has a fence use-after-free.EPSS 0.3%