Fallos del tipo CWE-787
5231 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-2023-20815MEDIUMIn wlan service, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege EPSS 0.1%CVE-2023-20805MEDIUMIn imgsys, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with SystEPSS 0.1%CVE-2023-32827MEDIUMIn camera middleware, there is a possible out of bounds write due to a missing input validation. This could lead to local escalation of privEPSS 0.1%CVE-2023-20814MEDIUMIn wlan service, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege EPSS 0.1%CVE-2023-20738MEDIUMIn vcu, 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-2025-36930HIGHIn GetHostAddress of gxp_buffer.h, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalatioEPSS 0.1%CVE-2024-29749HIGHIn tmu_set_tr_thresholds of tmu.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalatioEPSS 0.1%CVE-2022-20427MEDIUMIn (TBD) of (TBD), there is a possible way to corrupt memory due to improper input validation. This could lead to local escalation of privilEPSS 0.1%CVE-2022-20428MEDIUMIn (TBD) of (TBD), there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege wEPSS 0.1%CVE-2026-21107MEDIUMOut-of-bounds write in Samsung Notes prior to version 4.4.45.5 allows local attackers to write out-of-bounds memory.EPSS 0.1%CVE-2022-32635HIGHIn gps, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no addiEPSS 0.1%CVE-2022-20460MEDIUMIn (TBD) mprot_unmap? of (TBD), there is a possible way to corrupt the memory mapping due to improper input validation. This could lead to lEPSS 0.1%CVE-2023-20956MEDIUMIn Import of C2SurfaceSyncObj.cpp, there is a possible out of bounds write due to a missing bounds check. This could lead to local informatiEPSS 0.1%CVE-2023-20803MEDIUMIn imgsys, there is a possible memory corruption due to improper input validation. This could lead to local escalation of privilege with SysEPSS 0.1%CVE-2023-20716MEDIUMIn wlan, 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-2025-27044HIGHOut-of-bounds Write in VideoEPSS 0.1%CVE-2022-32636MEDIUMIn keyinstall, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with SysEPSS 0.1%CVE-2023-20751MEDIUMIn keymange, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with SyEPSS 0.1%CVE-2024-29743HIGHIn tmu_set_temp_lut of tmu.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of EPSS 0.1%CVE-2023-20657MEDIUMIn mtee, 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%