Falhas do tipo CWE-416

5.043 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-2026-32198HIGHMicrosoft Excel Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-50314HIGHMicrosoft Office Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-49418HIGHUse-after-free in device pager page listEPSS 0.5%CVE-2026-26107HIGHMicrosoft Excel Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-32189HIGHMicrosoft Excel Remote Code Execution VulnerabilityEPSS 0.5%CVE-2024-6775HIGHUse after free in Media Stream in Google Chrome prior to 126.0.6478.182 allowed a remote attacker who convinced a user to engage in specificEPSS 0.5%CVE-2024-9957HIGHUse after free in UI in Google Chrome on iOS prior to 130.0.6723.58 allowed a remote attacker who convinced a user to engage in specific UI EPSS 0.5%CVE-2022-22208MEDIUMJunos OS and Junos OS Evolved: An rpd crash can occur due to memory corruption caused by flapping BGP sessionsEPSS 0.5%CVE-2024-9961HIGHUse after free in ParcelTracking in Google Chrome on iOS prior to 130.0.6723.58 allowed a remote attacker who convinced a user to engage in EPSS 0.5%CVE-2024-6776HIGHUse after free in Audio in Google Chrome prior to 126.0.6478.182 allowed a remote attacker to potentially exploit heap corruption via a crafEPSS 0.5%CVE-2025-1010CRITICALUse-after-free in Custom HighlightEPSS 0.5%CVE-2023-25908HIGHAdobe Photoshop SVG file Use After Free Arbitrary code executionEPSS 0.5%CVE-2023-29321HIGHAdobe Animate FLA files Use After Free Arbitrary code executionEPSS 0.5%CVE-2025-14326CRITICALUse-after-free in the Audio/Video: GMP componentEPSS 0.5%CVE-2024-5845HIGHUse after free in Audio in Google Chrome prior to 126.0.6478.54 allowed a remote attacker to potentially exploit heap corruption via a craftEPSS 0.5%CVE-2026-87634CRITICALUse after free in WebPackaging in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to potentially execute arbitrary code outsiEPSS 0.5%CVE-2026-79140CRITICALUse after free in Views in Google Chrome on on Mac prior to 152.0.7977.65 allowed a remote attacker to execute arbitrary code outside the saEPSS 0.5%CVE-2026-79078CRITICALUse after free in FedCM in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to execute arbitraryEPSS 0.5%CVE-2022-38425MEDIUMAdobe Bridge DCM File Parsing Use-After-Free Information Disclosure VulnerabilityEPSS 0.5%CVE-2023-47075HIGHZDI-CAN-22006: Adobe Illustrator JP2 File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.5%