Fallos del tipo CWE-416

5038 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-2019-13514—In Delta Industrial Automation DOPSoft, Version 4.00.06.15 and prior, processing a specially crafted project file may trigger a use-after-frEPSS 3.0%CVE-2021-29256HIGH. The Arm Mali GPU kernel driver allows an unprivileged user to achieve access to freed memory, leading to information disclosure or root prEPSS 3.0%KEVCVE-2023-38227HIGHZDI-CAN-21241: Adobe Acrobat Reader DC Font Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 3.0%CVE-2023-38228HIGHZDI-CAN-21317: Adobe Acrobat Reader DC Font Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 3.0%CVE-2024-39424HIGHZDI-CAN-24309: Adobe Acrobat Reader DC Annotation Use-After-Free Remote Code Execution VulnerabilityEPSS 3.0%CVE-2024-39422HIGHZDI-CAN-24090: New Vulnerability Report - Use-after-free remote code execution vulnerability in Adobe Acrobat Reader DCEPSS 3.0%CVE-2019-3994—ELOG 3.1.4-57bea22 and below is affected by a denial of service vulnerability due to a use after free. A remote unauthenticated attacker canEPSS 2.9%CVE-2023-35618CRITICALMicrosoft Edge (Chromium-based) Elevation of Privilege VulnerabilityEPSS 2.9%CVE-2024-4741HIGHUse After Free with SSL_free_buffersEPSS 2.9%CVE-2021-34843HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893. User interaEPSS 2.9%CVE-2023-38222HIGHZDI-CAN-21103: Adobe Acrobat Reader DC AcroForm spawnPageFromTemplate Use-After-Free Remote Code Execution VulnerabilityEPSS 2.9%CVE-2021-21779MEDIUMA use-after-free vulnerability exists in the way Webkit’s GraphicsContext handles certain events in WebKitGTK 2.30.4. A specially crafted weEPSS 2.9%CVE-2021-34849HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893. User interaEPSS 2.9%CVE-2018-9946—This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader 9.0.0.29935. User iEPSS 2.9%CVE-2022-34224HIGHAdobe Acrobat Reader DC AcroForm setItems Use-After-Free Remote Code Execution VulnerabilityEPSS 2.8%CVE-2022-28279HIGHAdobe Photoshop Font Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 2.8%CVE-2021-31470HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 10.1.1.37576. User interactioEPSS 2.8%CVE-2026-23631MEDIUMredis-server Lua use-after-free may allow remote code executionEPSS 2.8%CVE-2020-13531HIGHA use-after-free vulnerability exists in a way Pixar OpenUSD 20.08 processes reference paths textual USD files. A specially crafted file canEPSS 2.8%CVE-2021-42381HIGHA use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in theEPSS 2.8%