Weaknesses of type CWE-787

5,212 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-2019-25569MEDIUMRealTerm Serial Terminal 2.0.0.70 SEH Overflow CrashEPSS 0.2%CVE-2026-40169MEDIUMImageMagick: Heap buffer overflow (WRITE) in the YAML and JSON encodersEPSS 0.2%CVE-2023-21508MEDIUMOut-of-bounds Write vulnerability while processing BC_TUI_CMD_SEND_RESOURCE_DATA command in bc_tui trustlet from Samsung Blockchain KeystoreEPSS 0.2%CVE-2023-21509MEDIUMOut-of-bounds Write vulnerability while processing BC_TUI_CMD_UPDATE_SCREEN in bc_tui trustlet from Samsung Blockchain Keystore prior to verEPSS 0.2%CVE-2025-39862HIGHwifi: mt76: mt7915: fix list corruption after hardware restartEPSS 0.2%CVE-2025-7519MEDIUMPolkit: xml policy file with a large number of nested elements may lead to out-of-bounds writeEPSS 0.2%CVE-2026-84546HIGHAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOSEPSS 0.2%CVE-2019-25615HIGHLavavo CD Ripper 4.20 Local SEH Buffer OverflowEPSS 0.2%CVE-2025-62525HIGHOpenWrt vulnerable to local privilage escalationEPSS 0.2%CVE-2026-21306HIGHSubstance3D - Sampler | Out-of-bounds Write (CWE-787)EPSS 0.2%CVE-2026-40310MEDIUMImageMagick: Heap out-of-bounds write in JP2 encoderEPSS 0.2%CVE-2026-33317HIGHOP-TEE: PKCS#11 TA out-of-bounds read and memory disclosureEPSS 0.2%CVE-2022-25480HIGHVulnerability in Realtek RtsPer driver for PCIe Card Reader (RtsPer.sys) before 10.0.22000.21355 and Realtek RtsUer driver for USB Card ReadEPSS 0.2%CVE-2023-40307MEDIUMPrivileges Memory Corruption (Out-of-bound write)EPSS 0.2%CVE-2023-20941MEDIUMIn acc_ctrlrequest_composite of f_accessory.c, there is a possible out of bounds write due to a missing bounds check. This could lead to phyEPSS 0.2%CVE-2026-25207HIGHOut-of-bounds write vulnerability in Samsung Open Source Escargot allows Overflow Buffers.This issue affects Escargot: 97e8115ab1110bc502b4bEPSS 0.2%CVE-2019-25556MEDIUMTwistedBrush Pro Studio 24.06 Resize Image Denial of ServiceEPSS 0.2%CVE-2026-32862HIGHOut-of-Bounds Write in ResFileFactory::InitResourceMgr()EPSS 0.2%CVE-2019-25584MEDIUMRarmaRadio 2.72.3 Server Field Buffer Overflow Denial of ServiceEPSS 0.2%CVE-2026-33165MEDIUMheap out-of-bounds write in libde265 1.0.16EPSS 0.2%