Falhas do tipo CWE-787

5.204 resultados

Escrita 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-2024-45152HIGHSubstance3D - Stager | Out-of-bounds Write (CWE-787)EPSS 0.3%CVE-2024-50230HIGHnilfs2: fix kernel bug due to missing clearing of checked flagEPSS 0.3%CVE-2026-75892MEDIUMOut of bounds write in PDP ctx GSN-Address decodeEPSS 0.3%CVE-2024-41864HIGHAdobe Substance 3D Designer ICO Parsing Out-Of-Bounds Write VulnerabilityEPSS 0.3%CVE-2026-35226HIGHOut-of-bounds Write in CODESYS PROFINET ControllerEPSS 0.3%CVE-2024-45144HIGHSubstance3D - Stager | Out-of-bounds Write (CWE-787)EPSS 0.3%CVE-2024-30290HIGHAdobe FrameMaker WEBP File Parsing Out Of Bound WriteEPSS 0.3%CVE-2020-36602MEDIUMThere is an out-of-bounds read and write vulnerability in some headset products. An unauthenticated attacker gets the device physically and EPSS 0.3%CVE-2026-16886MEDIUMVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.3%CVE-2026-25506HIGHMUNGE has a buffer overflow in message unpacking allows key leakage and credential forgeryEPSS 0.3%CVE-2026-11173HIGHOut of bounds write in V8 in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to execEPSS 0.3%CVE-2025-24139HIGHThe issue was addressed with improved checks. This issue is fixed in macOS Sequoia 15.3, macOS Sonoma 14.7.3, macOS Ventura 13.7.3, macOS VeEPSS 0.3%CVE-2025-24014MEDIUMsegmentation fault in win_line() in Vim < 9.1.1043EPSS 0.3%CVE-2022-43044MEDIUMGPAC 2.1-DEV-rev368-gfd054169b-master was discovered to contain a segmentation violation via the function gf_isom_get_meta_item_info at /isoEPSS 0.3%CVE-2025-49492HIGHOut-of-bounds write in lte-telephonyEPSS 0.3%CVE-2025-12603LOW/etc/timezone can be Arbitrarily WrittenEPSS 0.3%CVE-2025-12602LOW/etc/avahi/services/z9.service can be Arbitrarily WrittenEPSS 0.3%CVE-2025-10884HIGHCATPART File Parsing Out-of-Bounds Write VulnerabilityEPSS 0.3%CVE-2023-32538HIGHStack-based buffer overflow vulnerability exists in TELLUS v4.0.15.0 and TELLUS Lite v4.0.15.0. Opening a specially crafted SIM2 file may leEPSS 0.3%CVE-2023-32273HIGHStack-based buffer overflow vulnerability exists in TELLUS v4.0.15.0 and TELLUS Lite v4.0.15.0. Opening a specially crafted SIM2 file may leEPSS 0.3%