Weaknesses of type CWE-416

5,142 results

Uso após liberação de memória

Ocorre quando o código tenta acessar um bloco de memória que já foi desalocado (free/delete). O ponteiro continua apontando para aquele endereço, mas o dado ali pode ter sido sobrescrito por outra operação, causando comportamento impredizível, corrupção de dados ou execução de código arbitrário.

Example

Um buffer é alocado, depois liberado com free(). Mais adiante, o código ainda tenta ler ou escrever naquele mesmo ponteiro sem verificar. Se um atacante controlar a alocação subsequente daquele endereço, consegue manipular o conteúdo que será lido.

How to mitigate

Anule o ponteiro imediatamente após liberar (ptr = NULL), implemente análise estática para detectar acessos pós-liberação, use ferramentas como valgrind ou AddressSanitizer nos testes, e considere linguagens com gerenciamento automático de memória para código sensível.

CVE-2023-3610HIGHUse-after-free in Linux kernel's netfilter: nf_tables componentEPSS 0.3%CVE-2024-0562HIGHKernel: use-after-free after removing device in wb_inode_writeback_end in mm/page-writeback.cEPSS 0.3%CVE-2022-49087HIGHrxrpc: fix a race in rxrpc_exit_net()EPSS 0.3%CVE-2024-12175HIGHRockwell Automation Code Execution Vulnerability in ArenaEPSS 0.3%CVE-2025-54279HIGHAnimate | Use After Free (CWE-416)EPSS 0.3%CVE-2023-4132MEDIUMKernel: smsusb: use-after-free caused by do_submit_urb()EPSS 0.3%CVE-2026-100831HIGHUse-after-free in the DOM: UI Events & Focus Handling componentEPSS 0.3%CVE-2026-33023HIGHlibsixel: Use-after-free in load_with_gdkpixbuf()EPSS 0.3%CVE-2024-53168HIGHsunrpc: fix one UAF issue caused by sunrpc kernel tcp socketEPSS 0.3%CVE-2024-39463HIGH9p: add missing locking around taking dentry fid listEPSS 0.3%CVE-2026-11654CRITICALUse after free in CameraCapture in Google Chrome on Mac prior to 149.0.7827.103 allowed a remote attacker to potentially perform a sandbox eEPSS 0.3%CVE-2026-10007HIGHUse after free in SVG in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a crEPSS 0.3%CVE-2022-49082HIGHscsi: mpt3sas: Fix use after free in _scsih_expander_node_remove()EPSS 0.3%CVE-2021-47639HIGHKVM: x86/mmu: Zap _all_ roots when unmapping gfn range in TDP MMUEPSS 0.3%CVE-2026-11634CRITICALUse after free in Gamepad in Google Chrome on Windows prior to 149.0.7827.103 allowed a remote attacker to potentially perform a sandbox escEPSS 0.3%CVE-2025-12438HIGHUse after free in Ozone in Google Chrome on Linux and ChromeOS prior to 142.0.7444.59 allowed a remote attacker to potentially exploit objecEPSS 0.3%CVE-2020-22429HIGHredox-os v0.1.0 was discovered to contain a use-after-free bug via the gethostbyaddr() function at /src/header/netdb/mod.rs.EPSS 0.3%CVE-2026-11630HIGHUse after free in File Input in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to potentially exploit heap corruption via aEPSS 0.3%CVE-2026-11638CRITICALUse after free in Printing in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to potentially perform a sandbox escape via a EPSS 0.3%CVE-2026-11664HIGHUse after free in Payments in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to potentially exploit heap corruption via a cEPSS 0.3%