Falhas do tipo CWE-787
5.232 resultadosEscrita fora dos limites de memória
Ocorre quando um programa escreve dados em um endereço de memória fora da área alocada para um buffer ou variável. O código não valida o tamanho ou índice antes de gravar, permitindo sobrescrita de dados adjacentes, corrupção de estruturas críticas ou execução de código arbitrário.
Exemplo
Um formulário web que copia dados do usuário para um buffer de 256 bytes sem validar o tamanho da entrada. Se o atacante envia 500 bytes, a escrita transborda e sobrescreve a pilha, podendo hijackear o endereço de retorno da função.
Como mitigar
Use funções seguras de cópia (strncpy, strlcpy ao invés de strcpy; memcpy com tamanho máximo explícito) e sempre valide comprimento e índices antes de escrever. Em linguagens modernas, prefira estruturas com bounds-checking automático (arrays em Java, Rust, etc).
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%