Weaknesses of type CWE-787

5,844 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-2021-28816HIGHStack Buffer Overflow Vulnerabilities in QTS, QuTS hero, and QuTScloudEPSS 0.9%CVE-2023-2072HIGHRockwell Automation PowerMonitor 1000 Cross-Site Scripting VulnerabilityEPSS 0.9%CVE-2022-48078CRITICALpycdc commit 44a730f3a889503014fec94ae6e62d8401cb75e5 was discovered to contain a stack overflow via the component ASTree.cpp:BuildFromCode.EPSS 0.9%CVE-2023-34566CRITICALTenda AC10 v4 US_AC10V4.0si_V16.03.10.13_cn was discovered to contain a stack overflow via parameter time at /goform/saveParentControlInfo.EPSS 0.9%CVE-2022-38477HIGHMozilla developer Nika Layzell and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 103 and Firefox ESR 102.1. Some oEPSS 0.9%CVE-2022-1229HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.2.034. EPSS 0.9%CVE-2023-49404CRITICALTenda W30E V16.01.0.12(4843) was discovered to contain a stack overflow via the function formAdvancedSetListSet.EPSS 0.9%CVE-2026-18832HIGHVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.9%CVE-2026-17436HIGHVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.9%CVE-2021-25670—A vulnerability has been identified in Tecnomatix RobotExpert (All versions < V16.1). Affected applications lack proper validation of user-sEPSS 0.9%CVE-2023-49424HIGHTenda AX12 V22.03.01.46 was discovered to contain a stack overflow via the list parameter at /goform/SetVirtualServerCfg.EPSS 0.9%CVE-2025-30446MEDIUMA permissions issue was addressed with additional restrictions. This issue is fixed in macOS Sequoia 15.4, macOS Sonoma 14.7.5, macOS VenturEPSS 0.9%CVE-2022-27184HIGHHorner Automation Cscape CsfontEPSS 0.9%CVE-2023-36272HIGHLibreDWG v0.10 to v0.12.5 was discovered to contain a heap buffer overflow via the function bit_utf8_to_TU at bits.c.EPSS 0.9%CVE-2020-8109MEDIUMBitdefender ace.xmd parser out-of-bounds write (VA-8772)EPSS 0.9%CVE-2026-5857CRITICALContiki-NG MQTT Client Out-of-Bounds Write in PUBLISH Topic Parser via Persistent State Between TCP SegmentsEPSS 0.9%CVE-2022-22751HIGHMozilla developers Calixte Denizet, Kershaw Chang, Christian Holler, Jason Kratzer, Gabriele Svelto, Tyson Smith, Simon Giesecke, and Steve EPSS 0.9%CVE-2022-3050HIGHHeap buffer overflow in WebUI in Google Chrome on Chrome OS prior to 105.0.5195.52 allowed a remote attacker who convinced a user to engage EPSS 0.9%CVE-2022-26764MEDIUMA memory corruption issue was addressed with improved validation. This issue is fixed in watchOS 8.6, tvOS 15.5, macOS Monterey 12.4, iOS 15EPSS 0.9%CVE-2023-33672HIGHTenda AC8V4.0-V16.03.34.06 was discovered to contain a stack overflow via the shareSpeed parameter in the fromSetWifiGusetBasic function.EPSS 0.9%