Fallos del tipo CWE-787

5212 resultados

Escrita fora dos limites de memória

Ocorre quando um programa escreve dados em uma posição de memória fora do intervalo alocado para um buffer, array ou estrutura. O atacante aproveita para sobrescrever dados adjacentes (variáveis, ponteiros, pilha de retorno), alterando o comportamento da aplicação ou assumindo controle total do sistema.

Ejemplo

Um programa lê 256 bytes de entrada do usuário e copia para um buffer de 64 bytes sem validação. O atacante envia 300 bytes, que transbordam o buffer e sobrescrevem o endereço de retorno na pilha, permitindo execução de código arbitrário.

Cómo mitigar

Sempre validar tamanho de entrada contra o limite do buffer antes de copiar (usar strncpy, snprintf em vez de strcpy, sprintf). Em linguagens modernas, usar estruturas bounds-checked (Rust, C# arrays) ou linters que detectem padrões perigosos.

CVE-2025-27132LOWarkcompiler_ets_runtime has an out-of-bounds write vulnerabilityEPSS 0.2%CVE-2026-17100HIGHPower System Out-of-bounds WriteEPSS 0.2%CVE-2025-22835LOWArkcompiler Ets Runtime has an out-of-bounds write vulnerabilityEPSS 0.2%CVE-2023-32472MEDIUMDell Edge Gateway BIOS, versions 3200 and 5200, contains an out-of-bounds write vulnerability. A local authenticated malicious user with higEPSS 0.2%CVE-2026-6040MEDIUMHeap use-after-free in ODF number-format blank-width parsingEPSS 0.2%CVE-2026-31797MEDIUMiccDEV has a heap out-of-bounds read in CTiffImg::ReadLine()EPSS 0.2%CVE-2021-47775HIGHYouTube Video Grabber 1.9.9.1 - Buffer Overflow (SEH)EPSS 0.2%CVE-2018-9471CRITICALIn the deserialization constructor of NanoAppFilter.java, there is a possible loss of data due to type confusion. This could lead to local eEPSS 0.2%CVE-2026-30981MEDIUMiccDEV has a heap-buffer-overflow read in CIccXmlArrayType<>EPSS 0.2%CVE-2026-8358MEDIUMHeap buffer overflow in spreadsheet tracked-changes importEPSS 0.2%CVE-2026-63275MEDIUMStack buffer overflow in CFF font hint handlingEPSS 0.2%CVE-2024-32504HIGHAn issue was discovered in Samsung Mobile Processor and Wearable Processor Exynos 850, Exynos 1080, Exynos 2100, Exynos 1280, Exynos 1380, EEPSS 0.2%CVE-2026-63272MEDIUMHeap buffer overflow in WMF text record importEPSS 0.2%CVE-2026-28662HIGHIn p2p_process_prov_disc_bootstrap_req of p2p_pd.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead tEPSS 0.2%CVE-2026-6039MEDIUMHeap buffer overflow in DXF polyline importEPSS 0.2%CVE-2026-8356MEDIUMStack buffer overflow in PPT presentation importEPSS 0.2%CVE-2026-6047MEDIUMHeap buffer overflow in OOXML text box element importEPSS 0.2%CVE-2022-42503MEDIUMIn ProtocolMiscBuilder::BuildSetLinkCapaReportCriteria of protocolmiscbuilder.cpp, there is a possible out of bounds write due to a missing EPSS 0.2%CVE-2026-16996HIGHVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.2%CVE-2026-21352HIGHDNG SDK | Out-of-bounds Write (CWE-787)EPSS 0.2%