Weaknesses of type CWE-787

5,847 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-2023-0138HIGHHeap buffer overflow in libphonenumber in Google Chrome prior to 109.0.5414.74 allowed a remote attacker to potentially exploit heap corruptEPSS 0.7%CVE-2023-31567HIGHPodofo v0.10.0 was discovered to contain a heap buffer overflow via the component PoDoFo::PdfEncryptAESV3::PdfEncryptAESV3.EPSS 0.7%CVE-2024-20375HIGHA vulnerability in the SIP call processing function of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications MaEPSS 0.7%CVE-2026-4686HIGHIncorrect boundary conditions in the Graphics: Canvas2D componentEPSS 0.7%CVE-2024-5267HIGHSonos Era 100 SMB2 Message Handling Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.7%CVE-2026-112469HIGHAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and EPSS 0.7%CVE-2024-11691HIGHCertain WebGL operations on Apple silicon M series devices could have lead to an out-of-bounds write and memory corruption due to a flaw in EPSS 0.7%CVE-2021-47354HIGHdrm/sched: Avoid data corruptionsEPSS 0.7%CVE-2023-45678MEDIUMOff-by-one heap buffer write in start_decoder in stb_vorbisEPSS 0.7%CVE-2023-45675MEDIUM0 byte write heap buffer overflow in start_decoder in stb_vorbisEPSS 0.7%CVE-2022-45781HIGHBuffer Overflow vulnerability in Tenda AX1803 v1.0.0.1_2994 and earlier allows attackers to run arbitrary code via /goform/SetOnlineDevName.EPSS 0.7%CVE-2025-5099CRITICALKL-001-2025-004: Mobile Dynamix PrinterShare Mobile Print Out-of-bounds WriteEPSS 0.7%CVE-2026-7831HIGHUltraVNC viewer off-by-one stack overflow in ServerInit desktop name parsingEPSS 0.7%CVE-2023-34611HIGHAn issue was discovered mjson thru 1.4.1 allows attackers to cause a denial of service or other unspecified impacts via crafted object that EPSS 0.7%CVE-2026-43790CRITICALThe issue was addressed with improved memory handling. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. A EPSS 0.7%CVE-2023-25732HIGHWhen encoding data from an <code>inputStream</code> in <code>xpcom</code> the size of the input being encoded was not correctly calculated pEPSS 0.7%CVE-2020-27005—A vulnerability has been identified in JT2Go (All versions < V13.1.0.1), Teamcenter Visualization (All versions < V13.1.0.1). Affected appliEPSS 0.7%CVE-2026-57189LOWAsterisk: Possible RED T.140 Generation Accumulation OOB WriteEPSS 0.7%CVE-2026-96020HIGHWindows Domain Name Service Remote Code Execution VulnerabilityEPSS 0.7%CVE-2020-15212HIGHOut of bounds access in tensorflow-liteEPSS 0.7%