Weaknesses of type CWE-416

5,143 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-2022-50367HIGHfs: fix UAF/GPF bug in nilfs_mdt_destroyEPSS 0.2%CVE-2025-54258HIGHSubstance3D - Modeler | Use After Free (CWE-416)EPSS 0.2%CVE-2024-56759HIGHbtrfs: fix use-after-free when COWing tree bock and tracing is enabledEPSS 0.2%CVE-2024-57892HIGHocfs2: fix slab-use-after-free due to dangling pointer dqi_privEPSS 0.2%CVE-2025-10729CRITICALUse-after-free vulnerability in Qt SVG qsvghandler.cpp allows denial of service via crafted SVGEPSS 0.2%CVE-2025-21856HIGHs390/ism: add release function for struct deviceEPSS 0.2%CVE-2025-1884HIGHUse-After-Free vulnerability exists in SOLIDWORKS eDrawings on Release SOLIDWORKS Desktop 2025EPSS 0.2%CVE-2026-84120MEDIUMUse-after-free in the Audio/Video componentEPSS 0.2%CVE-2022-20568HIGHIn (TBD) of (TBD), there is a possible way to corrupt kernel memory due to a use after free. This could lead to local escalation of privilegEPSS 0.2%CVE-2026-9946HIGHUse after free in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to potenEPSS 0.2%CVE-2026-7111HIGHText::CSV_XS versions before 1.62 for Perl have a use-after-free when registered callbacks extend the Perl argument stack, which may enable type confusion or memory corruptionEPSS 0.2%CVE-2024-8595HIGHAutodesk AutoCAD MODEL File Parsing Use-After-Free Code Execution VulnerabilityEPSS 0.2%CVE-2024-9826HIGHAutodesk AutoCAD ACTranslators 3DM File Parsing Use-After-Free Code Execution VulnerabilityEPSS 0.2%CVE-2024-8590HIGHAutodesk AutoCAD 3DM File Parsing Use-After-Free Code Execution VulnerabilityEPSS 0.2%CVE-2024-0671MEDIUMMali GPU Kernel Driver allows improper GPU memory processing operationsEPSS 0.2%CVE-2025-7993HIGHAshlar-Vellum Cobalt LI File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.2%CVE-2026-8201MEDIUMUse-After-Free in MongoDB FLE Query Analysis When Processing Positional Projections on Encrypted FieldsEPSS 0.2%CVE-2022-23090HIGHAIO credential reference count leakEPSS 0.2%CVE-2026-7920HIGHUse after free in Skia in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to potentiEPSS 0.2%CVE-2023-40115CRITICALIn readLogs of StatsService.cpp, there is a possible memory corruption due to a use after free. This could lead to local escalation of priviEPSS 0.2%