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-2026-28857MEDIUMThe issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visioEPSS 0.5%CVE-2023-3776HIGHUse-after-free in Linux kernel's net/sched: cls_fw componentEPSS 0.5%CVE-2025-49682HIGHWindows Media Elevation of Privilege VulnerabilityEPSS 0.5%CVE-2023-38113LOWFoxit PDF Reader Annotation Use-After-Free Information Disclosure VulnerabilityEPSS 0.5%CVE-2022-3352HIGHUse After Free in vim/vimEPSS 0.5%CVE-2025-3416LOWRust-openssl: rust-openssl use-after-free in `md::fetch` and `cipher::fetch`EPSS 0.5%CVE-2022-44547HIGHThe Display Service module has a UAF vulnerability. Successful exploitation of this vulnerability may affect the display service availabilitEPSS 0.5%CVE-2025-29970HIGHMicrosoft Brokering File System Elevation of Privilege VulnerabilityEPSS 0.5%CVE-2026-8829HIGHHTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entitiesEPSS 0.5%CVE-2025-21945HIGHksmbd: fix use-after-free in smb2_lockEPSS 0.5%CVE-2022-44550HIGHThe graphics display module has a UAF vulnerability when traversing graphic layers. Successful exploitation of this vulnerability may affectEPSS 0.5%CVE-2026-19176HIGHUse after free in Skia in Google Chrome prior to 151.0.7922.109 allowed a remote attacker who had compromised the renderer process to executEPSS 0.5%CVE-2022-3235HIGHUse After Free in vim/vimEPSS 0.5%CVE-2022-30644HIGHAdobe Illustrator Font Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.5%CVE-2025-30385HIGHWindows Common Log File System Driver Elevation of Privilege VulnerabilityEPSS 0.5%CVE-2022-1055HIGHUse after Free in tc_new_tfilter allowing for privilege escalation in Linux KernelEPSS 0.5%CVE-2025-1006HIGHUse after free in Network in Google Chrome prior to 133.0.6943.126 allowed a remote attacker to potentially exploit heap corruption via a crEPSS 0.5%CVE-2026-6758HIGHUse-after-free in the JavaScript: WebAssembly componentEPSS 0.5%CVE-2020-27820—A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that isEPSS 0.5%CVE-2022-3863MEDIUMUse after free in Browser History in Google Chrome prior to 100.0.4896.75 allowed a remote attacker to potentially exploit heap corruption vEPSS 0.5%