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-2018-9393HIGHIn procfile_write of drivers/misc/mediatek/connectivity/wlan/gen2/os/linux/gl_proc.c, there is a possible OOB write due to a missing bounds EPSS 0.1%CVE-2018-9400HIGHIn gt1x_debug_write_proc and gt1x_tool_write of
drivers/input/touchscreen/mediatek/GT1151/gt1x_generic.c and gt1x_tools.c,
there is EPSS 0.1%CVE-2018-9394HIGHIn mtk_p2p_wext_set_key of drivers/misc/mediatek/connectivity/wlan/gen2/os/linux/gl_p2p.c, there is a possible OOB write due to improper inpEPSS 0.1%CVE-2023-52349MEDIUMIn ril 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-2018-9391MEDIUMIn update_gps_sv and output_vzw_debug of
vendor/mediatek/proprietary/hardware/connectivity/gps/gps_hal/src/gpshal_wor
ker.c, there iEPSS 0.1%CVE-2018-9463HIGHIn sw49408_irq_runtime_engine_debug of touch_sw49408.c, there is a possible
out of bounds write due to an incorrect bounds check. This cEPSS 0.1%CVE-2024-20092HIGHIn vdec, 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-2018-9396HIGHIn rpc_msg_handler and related handlers of drivers/misc/mediatek/eccci/port_rpc.c, there is a possible out of bounds write due to an incorreEPSS 0.1%CVE-2018-9392HIGHIn get_binary of vendor/mediatek/proprietary/hardware/connectivity/gps/gps_hal/src/data_coder.c, there is a possible out of bounds write dueEPSS 0.1%CVE-2025-36903HIGHIn lwis_io_buffer_write, there is a possible OOB read/write due to improper input validation. This could lead to local escalation of privileEPSS 0.1%CVE-2018-9397HIGHIn WMT_unlocked_ioctl of MTK WMT device driver, there is a possible OOB
write due to a missing bounds check. This could lead to local esEPSS 0.1%CVE-2018-9398HIGHIn fm_set_stat of mediatek FM radio driver, there is a possible OOB write
due to improper input validation. This could lead to local escEPSS 0.1%CVE-2024-56190HIGHIn wl_update_hidden_ap_ie() of wl_cfgscan.c, there is a possible out of bounds write due to improper input validation. This could lead to loEPSS 0.1%CVE-2024-20075MEDIUMIn eemgpu, 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-2018-9404HIGHIn oemCallback of ril.cpp, there is a possible out of bounds write due to an
integer overflow. This could lead to local escalation of prEPSS 0.1%CVE-2018-9395HIGHIn mtk_cfg80211_vendor_packet_keep_alive_start and mtk_cfg80211_vendor_set_config of drivers/misc/mediatek/connectivity/wlan/gen2/os/linux/gEPSS 0.1%CVE-2018-9462HIGHIn store_cmd of ftm4_pdc.c, there is a possible out of bounds write due to
an incorrect bounds check. This could lead to local escalatioEPSS 0.1%CVE-2025-32313HIGHIn UsageEvents of UsageEvents.java, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalEPSS 0.1%CVE-2023-48355MEDIUMIn jpg driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with SystemEPSS 0.1%CVE-2023-48359MEDIUMIn autotest driver, there is a possible out of bounds write due to improper input validation. This could lead to local denial of service witEPSS 0.1%