Weaknesses of type CWE-787

5,152 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-2026-18832HIGHVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.6%CVE-2026-25061MEDIUMtcpflow has TIM Element OOB Write in wifipcapEPSS 0.6%CVE-2023-7272HIGHEclipse Parsson stack overflow with deeply nested objectsEPSS 0.6%CVE-2026-31962HIGHHTSlib CRAM reader has heap buffer overflow due to improper validation of inputEPSS 0.6%CVE-2023-31436HIGHqfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAXEPSS 0.6%CVE-2026-8975HIGHMemory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151EPSS 0.6%CVE-2026-58177HIGHApache Traffic Server: Memory-safety and path-traversal errors in the Cripts frameworkEPSS 0.6%CVE-2021-36489MEDIUMBuffer Overflow vulnerability in Allegro through 5.2.6 allows attackers to cause a denial of service via crafted PCX/TGA/BMP files to allegrEPSS 0.6%CVE-2023-1222HIGHHeap buffer overflow in Web Audio API in Google Chrome prior to 111.0.5563.64 allowed a remote attacker to potentially exploit heap corruptiEPSS 0.6%CVE-2026-43748CRITICALAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.EPSS 0.6%CVE-2026-58187MEDIUMApache Traffic Server: Multiplexer plugin chunk decoder enables a denial of serviceEPSS 0.6%CVE-2025-35975HIGHMicroDicom DICOM Viewer Out-of-bounds WriteEPSS 0.6%CVE-2024-44242CRITICALThe issue was addressed with improved bounds checks. This issue is fixed in iOS 18.1 and iPadOS 18.1, macOS Sequoia 15.1. An attacker may beEPSS 0.6%CVE-2024-9248HIGHFoxit PDF Reader PDF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-59197HIGHPillow: Heap out-of-bounds write in Pillow `ImageFilter.RankFilter` via integer overflow in `ImagingExpand`EPSS 0.6%CVE-2022-32932HIGHThe issue was addressed with improved memory handling. This issue is fixed in iOS 15.7.1 and iPadOS 15.7.1, iOS 16.1 and iPadOS 16, watchOS EPSS 0.6%CVE-2026-6507HIGHDnsmasq: dnsmasq: denial of service due to out-of-bounds write in dhcp bootreply processingEPSS 0.6%CVE-2022-40653HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Ansys SpaceClaim 2022 R1. User interactionEPSS 0.6%CVE-2022-40644HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Ansys SpaceClaim 2022 R1. User interactionEPSS 0.6%CVE-2023-51743MEDIUMBuffer Overflow vulnerability in Skyworth RouterEPSS 0.6%