Weaknesses of type CWE-787

5,228 results

Escrita fora dos limites da memória

Ocorre quando o código escreve dados em um endereço de memória fora do intervalo alocado para uma estrutura (array, buffer, objeto). O programa não valida o tamanho ou índice antes de escrever, permitindo sobrescrever memória adjacente — causando corrupção de dados, queda da aplicação ou execução arbitrária de código.

Example

Um formulário web que copia o valor de um campo do usuário para um buffer de 64 bytes sem verificar o comprimento: se o atacante enviar 200 caracteres, a escrita invade a memória vizinha e pode sobrescrever um ponteiro de função ou variável crítica.

How to mitigate

Sempre validar tamanhos de entrada antes de copiar (usar `strncpy` em vez de `strcpy`, ou bibliotecas seguras como `bounds-checking`); usar linguagens com verificação automática de limites (Java, Rust); aplicar testes de fuzzing e análise estática de código para detectar escritas desprotegidas.

CVE-2025-0010MEDIUMAn out of bounds write in the Linux graphics driver could allow an attacker to overflow the buffer potentially resulting in loss of confidenEPSS 0.1%CVE-2025-20656MEDIUMIn DA, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege, if an attackEPSS 0.1%CVE-2026-18086MEDIUMIBM i is Affected By Multiple Vulnerabilities in Java Secure Sockets ExtensionEPSS 0.1%CVE-2019-25475MEDIUMSQL Server Password Changer 1.90 Denial of Service Buffer OverflowEPSS 0.1%CVE-2019-25484MEDIUMWinMPG iPod Convert 3.0 Register Field Buffer Overflow DoSEPSS 0.1%CVE-2026-46690MEDIUMunbounded-spsc: Sender::send pointer-as-value transmute causes OOB read and fake-Arc drop under TX/RX raceEPSS 0.1%CVE-2026-0010HIGHIn onTransact of IDrmManagerService.cpp, there is a possible out of bounds write due to a missing bounds check. This could lead to local escEPSS 0.1%CVE-2019-25477MEDIUMRAR Password Recovery 1.80 Denial of Service Buffer OverflowEPSS 0.1%CVE-2019-25469MEDIUMFolder Lock 7.7.9 Denial of Service via Serial Number FieldEPSS 0.1%CVE-2026-88839MEDIUMBusybox: busybox: passwd/group parser writes heap pointers out of bounds due to stale tokenize() endpointEPSS 0.1%CVE-2019-25476MEDIUMOutlook Password Recovery 2.10 Denial of Service Buffer OverflowEPSS 0.1%CVE-2025-36924HIGHIn ss_DecodeLcsAssistDataReqMsg(void) of ss_LcsManagement.c, there is a possible out of bounds write due to an incorrect bounds check. This EPSS 0.1%CVE-2021-4478HIGHDräger CC-Vision Basic and CC-Vision E-Cal Out-of-Bounds Write via Malicious GDT FileEPSS 0.1%CVE-2025-14098HIGHAvira antivirus engine heap buffer OOB write when scanning a malformed MS-DOS executable fileEPSS 0.1%CVE-2026-19696MEDIUMOut-of-bounds Write in WiresharkEPSS 0.1%CVE-2018-25198MEDIUMeToolz 3.4.8.0 Denial of Service via Buffer OverflowEPSS 0.1%CVE-2026-19280MEDIUMIBM i is Affected By Multiple Vulnerabilities in PASE [, ]EPSS 0.1%CVE-2025-10238HIGHDuring an internal security assessment, a potential out-of-bounds write vulnerability was discovered in the BIOS of some ThinkPad products cEPSS 0.1%CVE-2022-2984MEDIUMIn jpg driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service in kernel.EPSS 0.1%CVE-2026-47601HIGHNVIDIA GPU Display Driver for Windows and Linux contains a vulnerability in the open-source kernel module DMA-BUF import path where an unpriEPSS 0.1%