Fallos del tipo CWE-416

5110 resultados

Uso após liberação de memória

Ocorre quando o código tenta acessar uma área de memória que já foi liberada (deallocated). O programa continua usando um ponteiro que aponta para um endereço inválido, causando leitura/escrita em memória não controlada. Isso pode levar a crash, corrupção de dados ou execução arbitrária de código.

Ejemplo

Um navegador aloca memória para um objeto DOM, depois o remove da página e libera a memória. Se um script JavaScript ainda tentar acessar esse objeto deletado, o navegador tenta ler/escrever em um endereço que agora contém outro dado, causando comportamento impredizível ou exploração por atacante.

Cómo mitigar

Use linguagens com garbage collection (Java, Python, C#) ou práticas rigorosas: null os ponteiros após free(), use smart pointers (C++), evite compartilhamento de referências sem sincronização, faça testes de memória com ferramentas como Valgrind ou AddressSanitizer.

CVE-2026-73513HIGHEnvoy: oghttp2 upstream trailers incorrect handlingEPSS 0.5%CVE-2024-5847HIGHUse after free in PDFium in Google Chrome prior to 126.0.6478.54 allowed a remote attacker to potentially exploit heap corruption via a crafEPSS 0.5%CVE-2026-0882HIGHUse-after-free in the IPC componentEPSS 0.5%CVE-2025-26640HIGHWindows Digital Media Elevation of Privilege VulnerabilityEPSS 0.5%CVE-2024-5694HIGHAn attacker could have caused a use-after-free in the JavaScript engine to read memory in the JavaScript string section of the heap. This vuEPSS 0.5%CVE-2026-60002HIGHssh in OpenSSH before 10.4 can have a use-after-free when a server changes its host key during a key re-exchange. (This outcome occurs only EPSS 0.5%CVE-2026-84324CRITICALUse after free in Proxy in Google Chrome prior to 152.0.7977.75 allowed a remote attacker to execute arbitrary code outside the sandbox via EPSS 0.5%CVE-2026-0884CRITICALUse-after-free in the JavaScript Engine componentEPSS 0.5%CVE-2024-8638HIGHType Confusion in V8 in Google Chrome prior to 128.0.6613.137 allowed a remote attacker to potentially exploit object corruption via a craftEPSS 0.5%CVE-2026-2795HIGHUse-after-free in the JavaScript: GC componentEPSS 0.5%CVE-2024-9960HIGHUse after free in Dawn in Google Chrome prior to 130.0.6723.58 allowed a remote attacker to potentially exploit heap corruption via a crafteEPSS 0.5%CVE-2026-2799HIGHUse-after-free in the DOM: Core & HTML componentEPSS 0.5%CVE-2026-7322HIGHMemory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1EPSS 0.5%CVE-2024-7510HIGHTrimble SketchUp SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-2797HIGHUse-after-free in the JavaScript: GC componentEPSS 0.5%CVE-2023-5345HIGHUse-after-free in Linux kernel's fs/smb/client componentEPSS 0.5%CVE-2026-10882HIGHUse after free in Network in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code via a crafted HTML pagEPSS 0.5%CVE-2023-21096CRITICALIn OnWakelockReleased of attribution_processor.cc, there is a use after free that could lead to remote code execution with no additional exeEPSS 0.5%CVE-2024-30375HIGHLuxion KeyShot Viewer KSP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-18706HIGHUse-After-Free in MongoDB $graphLookup Aggregation Stage Leads to Denial of Service and Potential Remote Code ExecutionEPSS 0.5%