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-2026-30983HIGHiccDEV has a stack buffer overflow in icFixXml()EPSS 0.2%CVE-2026-30987HIGHiccDEV has a stack buffer overflow in CIccTagNum<(icTagTypeSignature)>::GetValues()EPSS 0.2%CVE-2026-31795HIGHiccDEV has a stack buffer overflow write in CIccXform3DLut::Apply()EPSS 0.2%CVE-2023-3495HIGHOut-of-bounds Write Vulnerability in Hitachi EH-VIEW (KeypadDesigner)EPSS 0.2%CVE-2023-39985HIGHOut-of-bounds Write Vulnerability in Hitachi EH-VIEW (Designer)EPSS 0.2%CVE-2026-30985HIGHiccDEV has a heap-based buffer overflow write in CIccMatrixMath::SetRange()EPSS 0.2%CVE-2026-31796HIGHiccDEV has a heap-based buffer overflow in icCurvesFromXml()EPSS 0.2%CVE-2026-24193HIGHNVIDIA Display Driver for Windows and Linux contains a vulnerability where an attacker could cause an out-of-bounds write. A successful explEPSS 0.2%CVE-2023-0182HIGHNVIDIA GPU Display Driver for Windows contains a vulnerability in the kernel mode layer, where an out-of-bounds write can lead to denial of EPSS 0.2%CVE-2025-4877MEDIUMLibssh: write beyond bounds in binary to base64 conversion functionsEPSS 0.2%CVE-2025-30417HIGHOut of Bounds Write in Library!DecodeBase64() in NI Circuit Design SuiteEPSS 0.2%CVE-2025-30418HIGHOut of Bounds Write in CheckPins() in NI Circuit Design SuiteEPSS 0.2%CVE-2025-21966HIGHdm-flakey: Fix memory corruption in optional corrupt_bio_byte featureEPSS 0.2%CVE-2025-5917LOWLibarchive: off by one error in build_ustar_entry_name() at archive_write_set_format_pax.cEPSS 0.2%CVE-2024-27379MEDIUMAn issue was discovered in Samsung Mobile Processor Exynos 980, Exynos 850, Exynos 1280, Exynos 1380, and Exynos 1330. In the function slsi_EPSS 0.2%CVE-2026-21312HIGHAudition | Out-of-bounds Write (CWE-787)EPSS 0.2%CVE-2024-27376MEDIUMAn issue was discovered in Samsung Mobile Processor Exynos 980, Exynos 850, Exynos 1280, Exynos 1380, and Exynos 1330. In the function slsi_EPSS 0.2%CVE-2026-21334HIGHSubstance3D - Designer | Out-of-bounds Write (CWE-787)EPSS 0.2%CVE-2021-47765MEDIUMAbsoluteTelnet 11.24 - 'Username' Denial of Service (PoC)EPSS 0.2%CVE-2026-21335HIGHSubstance3D - Designer | Out-of-bounds Write (CWE-787)EPSS 0.2%