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-2026-34345HIGHWindows Ancillary Function Driver for WinSock Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-69682HIGHWindows Host Guardian Service Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-50384HIGHWindows Clip Service Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-68840HIGHWindows USB Driver Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-62734HIGHWindows Telephony Service Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-48572HIGHWindows App Package Installer Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2025-21729HIGHwifi: rtw89: fix race between cancel_hw_scan and hw_scan completionEPSS 0.2%CVE-2026-26173HIGHWindows Ancillary Function Driver for WinSock Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-69581HIGHWindows Device Association Service Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-49784HIGHMicrosoft Windows App Store Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2026-32163HIGHWindows User Interface Core Elevation of Privilege VulnerabilityEPSS 0.2%CVE-2025-64531HIGHSubstance3D - Stager | Use After Free (CWE-416)EPSS 0.2%CVE-2026-87877HIGHzstd-jni 1.3.8-4 through 1.5.7-13 Use-After-Free via Setters Called After close()EPSS 0.2%CVE-2024-0124LOWNVIDIA CUDA Toolkit for Windows and Linux contains a vulnerability in the nvdisam command line tool, where a user can cause nvdisasm to readEPSS 0.2%CVE-2026-11185HIGHUse after free in V8 in Google Chrome prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to exEPSS 0.2%CVE-2025-33217HIGHNVIDIA Display Driver for Windows contains a vulnerability where an attacker could trigger a use after free. A successful exploit of this vuEPSS 0.2%CVE-2024-56764HIGHublk: detach gendisk from ublk device if add_disk() failsEPSS 0.2%CVE-2024-50149HIGHdrm/xe: Don't free job in TDREPSS 0.2%CVE-2025-21979HIGHwifi: cfg80211: cancel wiphy_work before freeing wiphyEPSS 0.2%CVE-2023-4134MEDIUMKernel: cyttsp4_core: use-after-free in cyttsp4_watchdog_work()EPSS 0.2%