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-2023-21052MEDIUMIn setToExternal of ril_external_client.cpp, there is a possible out of bounds write due to a missing bounds check. This could lead to localEPSS 0.1%CVE-2023-32826MEDIUMIn 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-2026-0122HIGHIn multiple places, there is a possible out of bounds write due to memory corruption. This could lead to remote code execution with no additEPSS 0.1%CVE-2023-20734MEDIUMIn 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-2023-20656MEDIUMIn geniezone, there is a possible out of bounds write due to a logic error. This could lead to local escalation of privilege with System exeEPSS 0.1%CVE-2023-20735MEDIUMIn 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-2023-20720MEDIUMIn pqframework, there is a possible out of bounds read due to a missing bounds check. This could lead to local escalation of privilege with EPSS 0.1%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-2023-21022HIGHIn BufferBlock of Suballocation.cpp, there is a possible out of bounds write due to memory corruption. This could lead to local escalation oEPSS 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-2023-32830MEDIUMIn TVAPI, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with SysteEPSS 0.1%CVE-2023-21100HIGHIn inflate of inflate.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of priviEPSS 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-2025-36928HIGHIn GetHostAddress of gxp_buffer.h, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalaEPSS 0.1%CVE-2023-20804MEDIUMIn 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-2023-20816MEDIUMIn 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-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-2023-20936HIGHIn bta_av_rc_disc_done of bta_av_act.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to local escEPSS 0.1%