Falhas do tipo CWE-416

5.110 resultados

Uso após liberação de memória

Ocorre quando o código tenta acessar (ler ou escrever) um bloco de memória que já foi liberado (free, delete). O programa mantém um ponteiro para a memória, mas o sistema operacional pode reatribuir essa região para outro uso, causando corrupção de dados, travamento ou execução de código arbitrário.

Exemplo

Um servidor web aloca memória para armazenar dados de sessão do usuário, depois libera essa memória quando a sessão encerra. Se uma thread continuar tentando acessar essa sessão após a liberação, pode ler dados de outra sessão ou sobrescrever dados críticos de outro processo.

Como mitigar

Sempre anule ponteiros após liberar memória (ptr = NULL), use variáveis de controle para rastrear estado de alocação, implemente gerenciamento automático de memória quando possível (smart pointers em C++), e execute testes com sanitizers (AddressSanitizer, Valgrind) durante desenvolvimento e CI/CD.

CVE-2023-22246HIGHAdobe Animate FLA files Use After Free Arbitrary code executionEPSS 0.4%CVE-2024-12694HIGHUse after free in Compositing in Google Chrome prior to 131.0.6778.204 allowed a remote attacker to potentially exploit heap corruption via EPSS 0.4%CVE-2025-52910CRITICALAn issue was discovered in the GPU in Samsung Mobile Processor and Wearable Processor Exynos 1280, 2200, 1330, 1380, 1480, 2400. A Use-AfterEPSS 0.4%CVE-2026-7926HIGHUse after free in PresentationAPI in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to execute arbitrary code inside a sandbEPSS 0.4%CVE-2026-7906HIGHUse after free in SVG in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to execute arbitrary code inside a sandbox via a craEPSS 0.4%CVE-2023-22244HIGHAdobe Premiere Rush PSD files Use After Free Arbitrary code executionEPSS 0.4%CVE-2026-7938HIGHUse after free in CSS in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to execute arbitrary code inside a sandbox via a craEPSS 0.4%CVE-2023-22235HIGHAdobe InCopy SVG file Use After Free Arbitrary code executionEPSS 0.4%CVE-2026-50046MEDIUMPossible heap use-after-free in an error path when a DoT forwarded query is jostled outEPSS 0.4%CVE-2026-7907HIGHUse after free in DOM in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to execute arbitrary code inside a sandbox via a craEPSS 0.4%CVE-2023-26349MEDIUMZDI-CAN-20218: Adobe Dimension USDZ File Parsing Use-After-Free Information Disclosure VulnerabilityEPSS 0.4%CVE-2026-7921HIGHUse after free in Passwords in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to execute arbitrary code via a crafted HTML pEPSS 0.4%CVE-2026-7901HIGHUse after free in ANGLE in Google Chrome on Mac prior to 148.0.7778.96 allowed a remote attacker to execute arbitrary code inside a sandbox EPSS 0.4%CVE-2026-45461HIGHMicrosoft Office Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-40366HIGHMicrosoft Word Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-40358HIGHMicrosoft Office Remote Code Execution VulnerabilityEPSS 0.4%CVE-2022-44518HIGHAcrobat Reader | Use After Free (CWE-416)EPSS 0.4%CVE-2026-54128HIGHWindows DHCP Client Remote Code Execution VulnerabilityEPSS 0.4%CVE-2022-42430HIGHThis vulnerability allows local attackers to escalate privileges on affected Tesla vehicles. An attacker must first obtain the ability to exEPSS 0.4%CVE-2026-33115HIGHMicrosoft Word Remote Code Execution VulnerabilityEPSS 0.4%