Fallos del tipo CWE-416

5131 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-2025-21967HIGHksmbd: fix use-after-free in ksmbd_free_work_structEPSS 0.4%CVE-2026-43740MEDIUMThe issue was addressed with improved memory handling. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.EPSS 0.4%CVE-2026-17729HIGHUse after free in V8 in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentialEPSS 0.4%CVE-2023-26226HIGHA use after free memory corruption issue exists in Yandex Browser for Desktop prior to version 24.4.0.682EPSS 0.4%CVE-2024-43703HIGHGPU DDK - Duplicate calls to RGXCreateFreeList on the same reservation leads to GPU UAFEPSS 0.4%CVE-2025-62170HIGHrAthena map-server use-after-free vulnerability in RODEXEPSS 0.4%CVE-2022-1205—A NULL pointer dereference flaw was found in the Linux kernel’s Amateur Radio AX.25 protocol functionality in the way a user connects with tEPSS 0.4%CVE-2026-43727MEDIUMA use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, EPSS 0.4%CVE-2026-43717MEDIUMA use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, EPSS 0.4%CVE-2026-10640MEDIUMUse-after-free reading `net_pkt` `iface` after send in IPv6 Neighbor Discovery (`ipv6_nbr.c`)EPSS 0.4%CVE-2026-43709MEDIUMA use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, maEPSS 0.4%CVE-2025-66023MEDIUMNanoMQ has Use-After-Free of malformed bridging messageEPSS 0.4%CVE-2023-5197HIGHUse-after-free in Linux kernel's netfilter: nf_tables componentEPSS 0.4%CVE-2025-49014MEDIUMjq heap use after free vulnerability in f_strflocaltimeEPSS 0.4%CVE-2025-57108CRITICALKitware VTK (Visualization Toolkit) through 9.5.0 contains a heap use-after-free vulnerability in vtkGLTFDocumentLoader. The vulnerability mEPSS 0.4%CVE-2023-30549HIGHUnpatched extfs vulnerabilities are exploitable through suid-mode ApptainerEPSS 0.4%CVE-2025-55118HIGHBMC Control-M/Agent memory corruption in SSL/TLS communicationEPSS 0.4%CVE-2023-6932HIGHUse-after-free in Linux kernel's ipv4: igmp componentEPSS 0.4%CVE-2026-82063MEDIUMUse-After-Free in MongoDB Server Cursor Management Component Leads to Denial of ServiceEPSS 0.4%CVE-2026-53462MEDIUMImageMagick: Use-After-Free when allocation in CheckPrimitiveExtent failsEPSS 0.4%