Weaknesses of type CWE-416

5,149 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-2024-52568HIGHA vulnerability has been identified in Teamcenter Visualization V14.2 (All versions < V14.2.0.14), Teamcenter Visualization V14.3 (All versiEPSS 0.2%CVE-2026-34734HIGHHDF5: H5T__conv_struct Use After FreeEPSS 0.2%CVE-2026-17737MEDIUMUse after free in Bluetooth in Google Chrome on Android prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer prEPSS 0.2%CVE-2026-87578HIGHUse after free in Receiver in Google Chrome prior to 153.0.8010.36 allowed an adjacent attacker to execute arbitrary code outside the sandboEPSS 0.2%CVE-2026-33150HIGHUse After Free in libfuseEPSS 0.2%CVE-2026-17746MEDIUMUse after free in GPU in Google Chrome on Mac prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to pEPSS 0.2%CVE-2026-74766HIGHNet::IDN::Punycode versions from 2.301 before 2.590 for Perl allow a heap use-after-free via a decoded code point that reallocates the output buffer in decode_punycodeEPSS 0.2%CVE-2022-20581MEDIUMIn the Pixel camera driver, there is a possible use after free due to a logic error in the code. This could lead to local escalation of privEPSS 0.2%CVE-2026-57240HIGHFoxit PDF Editor/Reader Form Field Use-After-Free Remote Code Execution VulnerabilityEPSS 0.2%CVE-2024-41157HIGHLiteos-A has an use after free vulnerabilityEPSS 0.2%CVE-2023-53363HIGHPCI: Fix use-after-free in pci_bus_release_domain_nr()EPSS 0.2%CVE-2026-24187HIGHNVIDIA Display Driver for Linux contains a vulnerability where an attacker could cause a use-after-free. A successful exploit of this vulnerEPSS 0.2%CVE-2026-10926HIGHUse after free in Cast in Google Chrome prior to 149.0.7827.53 allowed an attacker on the local network segment to execute arbitrary code viEPSS 0.2%CVE-2026-12921HIGHUse after free in AzeoTech DAQFactoryEPSS 0.2%CVE-2025-60465MEDIUMA use-after-free in the gf_filter_pid_inst_swap function (/filter_core/filter_pid.c) of GPAC Project/MP4Box before 26.02.0 allows attackers EPSS 0.2%CVE-2024-22098MEDIUMAVSession has a use after free vulnerabilityEPSS 0.2%CVE-2026-11304HIGHUse after free in PDFium in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to potentially exploit heap corruption via a crafEPSS 0.2%CVE-2026-12035HIGHUse after free in Views in Google Chrome on Windows prior to 149.0.7827.115 allowed a remote attacker to potentially exploit heap corruptionEPSS 0.2%CVE-2025-6973HIGHUse After Free vulnerability exists in the JT file reading procedure in SOLIDWORKS eDrawings on Release SOLIDWORKS Desktop 2025EPSS 0.2%CVE-2025-6972HIGHUse After Free vulnerability exists in the CATPRODUCT file reading procedure in SOLIDWORKS eDrawings on Release SOLIDWORKS Desktop 2025EPSS 0.2%