Fallos del tipo CWE-787
5232 resultadosEscrita fora dos limites de memória
Ocorre quando um programa escreve dados em uma posição de memória fora do intervalo alocado para um buffer, array ou estrutura. O atacante aproveita para sobrescrever dados adjacentes (variáveis, ponteiros, pilha de retorno), alterando o comportamento da aplicação ou assumindo controle total do sistema.
Ejemplo
Um programa lê 256 bytes de entrada do usuário e copia para um buffer de 64 bytes sem validação. O atacante envia 300 bytes, que transbordam o buffer e sobrescrevem o endereço de retorno na pilha, permitindo execução de código arbitrário.
Cómo mitigar
Sempre validar tamanho de entrada contra o limite do buffer antes de copiar (usar strncpy, snprintf em vez de strcpy, sprintf). Em linguagens modernas, usar estruturas bounds-checked (Rust, C# arrays) ou linters que detectem padrões perigosos.
CVE-2025-20723HIGHIn gnss driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege iEPSS 0.1%CVE-2025-20721HIGHIn imgsensor, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a mEPSS 0.1%CVE-2023-20832MEDIUMIn gps, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System EPSS 0.1%CVE-2026-20417MEDIUMIn pcie, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a maliciEPSS 0.1%CVE-2025-20782MEDIUMIn display, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malEPSS 0.1%CVE-2023-20829MEDIUMIn gps, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System EPSS 0.1%CVE-2023-20626MEDIUMIn msdc, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with SysEPSS 0.1%CVE-2023-20828MEDIUMIn gps, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System EPSS 0.1%CVE-2023-32839MEDIUMIn dpe, there is a possible out of bounds write due to a missing valid range checking. This could lead to local escalation of privilege withEPSS 0.1%CVE-2018-9371HIGHIn the Mediatek Preloader, there are out of bounds reads and writes due to an exposed interface that allows arbitrary peripheral memory mappEPSS 0.1%CVE-2023-32822MEDIUMIn ftm, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System EPSS 0.1%CVE-2022-47452MEDIUMIn gnss driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service in wlan seEPSS 0.1%CVE-2024-29752HIGHIn tmu_set_tr_num_thresholds of tmu.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalEPSS 0.1%CVE-2024-29746HIGHIn lpm_req_handler of lpm.c, there is a possible out of bounds write due to improper input validation. This could lead to local escalation oEPSS 0.1%CVE-2023-20831MEDIUMIn gps, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System EPSS 0.1%CVE-2023-20749MEDIUMIn swpm, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with SystemEPSS 0.1%CVE-2023-20822MEDIUMIn netdagent, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with SEPSS 0.1%CVE-2026-23791MEDIUMAn issue was discovered in DPU in Samsung Mobile Processor Exynos 1280, 2200, 1380, 1480, 2400, 1580, 2500, 1680, and 2600. An out-of-boundsEPSS 0.1%CVE-2023-20812MEDIUMIn wlan driver, there is a possible out of bounds write due to improper input validation. This could lead to local information disclosure wiEPSS 0.1%CVE-2022-47368MEDIUMIn wlan driver, there is a possible missing params check. This could lead to local denial of service in wlan services.EPSS 0.1%