Falhas do tipo CWE-787

5.212 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-2025-54273HIGHSubstance3D - Viewer | Out-of-bounds Write (CWE-787)EPSS 0.2%CVE-2026-8325HIGHPDF File Parsing Out-of-Bounds Write Vulnerability in Certain Autodesk Desktop ProductsEPSS 0.2%CVE-2022-48181MEDIUMAn ErrorMessage driver stack-based buffer overflow vulnerability in BIOS of some ThinkPad models could allow an attacker with local access tEPSS 0.2%CVE-2026-8454MEDIUMImager::File::GIF versions through 1.002 for Perl allow a heap out of bounds (OOB) write on crafted multi-frame GIF filesEPSS 0.2%CVE-2024-8894HIGHOut-of-bounds Write vulnerability in ODA SDK versions < 2025.10EPSS 0.2%CVE-2025-54280HIGHSubstance3D - Viewer | Out-of-bounds Write (CWE-787)EPSS 0.2%CVE-2022-48188MEDIUMA buffer overflow vulnerability in the SecureBootDXE BIOS driver of some Lenovo Desktop and ThinkStation models could allow an attacker withEPSS 0.2%CVE-2018-25214MEDIUMMegaPing Local Buffer Overflow Denial of ServiceEPSS 0.2%CVE-2026-7451HIGHTIF File Parsing Out-of-Bounds Write in Autodesk 3ds MaxEPSS 0.2%CVE-2025-49569HIGHSubstance3D - Viewer | Out-of-bounds Write (CWE-787)EPSS 0.2%CVE-2026-7455HIGHFLT File Parsing Out-of-Bounds Write Vulnerability in Autodesk 3ds MaxEPSS 0.2%CVE-2026-41989MEDIUMLibgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.EPSS 0.2%CVE-2026-81627HIGHQemu-kvm: vapic writable rom alias can escape the option-rom window and expose locked smramEPSS 0.2%CVE-2026-47876CRITICALVMXNET3 out-of-bounds write vulnerabilityEPSS 0.2%CVE-2019-25554MEDIUMTomabo MP4 Converter 3.25.22 Denial of Service via Name FieldEPSS 0.2%CVE-2026-3094HIGHFile Parsing Out-Of-Bounds Write in CNCSoft-G2EPSS 0.2%CVE-2023-5180HIGHOut-of-bounds Write vulnerability exists in ODA Drawings SDK before 2024.12EPSS 0.2%CVE-2026-30979HIGHiccDEV has a heap-based buffer overflow in CIccCalculatorFunc::InitSelectOp()EPSS 0.2%CVE-2026-40489HIGHeditorconfig-core-c has incomplete fix for CVE-2023-0341EPSS 0.2%CVE-2019-25667MEDIUMTaskInfo 8.2.0.280 Denial of Service Buffer OverflowEPSS 0.2%