Weaknesses of type CWE-416

5,109 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-2026-10914HIGHUse after free in ANGLE in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandEPSS 0.4%CVE-2026-10902HIGHUse after free in Ozone in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code via a crafted HTML page.EPSS 0.4%CVE-2026-10895HIGHUse after free in Ozone in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code via a crafted HTML page.EPSS 0.4%CVE-2020-5376MEDIUMDell Inspiron 7347 BIOS versions prior to A13 contain a UEFI BIOS Boot Services overwrite vulnerability. A local attacker with access to sysEPSS 0.4%CVE-2026-10956HIGHUse after free in MimeHandlerView in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbEPSS 0.4%CVE-2026-10913HIGHUse after free in ANGLE in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandEPSS 0.4%CVE-2026-10954HIGHUse after free in Actor in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a cEPSS 0.4%CVE-2026-22166HIGHGPU DDK - Write UAF in KEGLGetPoolBuffers, WebGL reachableEPSS 0.4%CVE-2025-22403CRITICALIn sdp_snd_service_search_req of sdp_discovery.cc, there is a possible way to execute arbitrary code due to a use after free. This could leaEPSS 0.4%CVE-2023-47055HIGHZDI-CAN-21765: Adobe Premiere Pro M4A File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-43704MEDIUMA 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-2026-43663MEDIUMThe issue was addressed with improved memory handling. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and EPSS 0.4%CVE-2026-42007CRITICALAn attacker that has valid credentials can use a Sieve script with the editheader extension to trigger a use-after-free in the mail editing EPSS 0.4%CVE-2025-22408CRITICALIn rfc_check_send_cmd of rfc_utils.cc, there is a possible way to execute arbitrary code due to a use after free. This could lead to remote EPSS 0.4%CVE-2026-39872MEDIUMThe issue was addressed with improved memory handling. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and EPSS 0.4%CVE-2025-53137HIGHWindows Ancillary Function Driver for WinSock Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2025-0445MEDIUMUse after free in V8 in Google Chrome prior to 133.0.6943.53 allowed a remote attacker to potentially exploit heap corruption via a crafted EPSS 0.4%CVE-2022-3591HIGHUse After Free in vim/vimEPSS 0.4%CVE-2026-28879MEDIUMA use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadEPSS 0.4%CVE-2023-26336HIGHZDI-CAN-20275: Adobe Dimension USD File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.4%