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-2022-48239MEDIUMIn camera driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with SysEPSS 0.1%CVE-2022-48385MEDIUMIn cp_dump driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with SyEPSS 0.1%CVE-2026-49918HIGHIn multiple functions, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege EPSS 0.1%CVE-2022-48373MEDIUMIn tee service, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with SysteEPSS 0.1%CVE-2022-48238MEDIUMIn Image filter, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with SystEPSS 0.1%CVE-2026-55351HIGHIn VPU, there is a possible out-of-bounds write due to an integer overflow. This could lead to local escalation of privilege with no additioEPSS 0.1%CVE-2026-55323HIGHIn gf_base_update_finger_base of gf_base.c, there is a possible out-of-bounds write due to a heap buffer overflow. This could lead to local EPSS 0.1%CVE-2022-48372MEDIUMIn bootcp service, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with SyEPSS 0.1%CVE-2026-57014HIGHIn phNxpNciHal_ext_process_nfc_init_rsp of phNxpNciHal_ext.cc, there is a possible out-of-bounds write due to a missing bounds check. This cEPSS 0.1%CVE-2022-47486MEDIUMIn ext4fsfilter driver, there is a possible out of bounds read due to a missing bounds check. This could lead to local denial of service witEPSS 0.1%CVE-2022-48235MEDIUMIn MP3 encoder, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with SysteEPSS 0.1%CVE-2026-45515HIGHIn a2dp_vendor_opus_decoder_decode_packet of a2dp_vendor_opus_decoder.cc, there is a possible out of bounds write due to a heap buffer overfEPSS 0.1%CVE-2022-47469MEDIUMIn ext4fsfilter driver, there is a possible out of bounds read due to a missing bounds check. This could local denial of service with SystemEPSS 0.1%CVE-2026-28653HIGHIn multiple functions of rw_t3t.cc, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation EPSS 0.1%CVE-2022-48240MEDIUMIn camera driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with SysEPSS 0.1%CVE-2022-47485MEDIUMIn modem control device, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service wEPSS 0.1%CVE-2022-47470MEDIUMIn ext4fsfilter driver, there is a possible out of bounds read due to a missing bounds check. This could local denial of service with SystemEPSS 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-2023-20816MEDIUMIn 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-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%