Weaknesses of type CWE-787

5,846 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-2023-27805MEDIUMH3C Magic R100 R100V100R005.bin was discovered to contain a stack overflow via the EditSTList interface at /goform/aspForm. This vulnerabiliEPSS 0.8%CVE-2023-29909MEDIUMH3C Magic R200 version R200V100R004 was discovered to contain a stack overflow via the AddWlanMacList interface at /goform/aspForm.EPSS 0.8%CVE-2023-27807MEDIUMH3C Magic R100 R100V100R005.bin was discovered to contain a stack overflow via the Delstlist interface at /goform/aspForm. This vulnerabilitEPSS 0.8%CVE-2023-29916MEDIUMH3C Magic R200 version R200V100R004 was discovered to contain a stack overflow via the UpdateWanParams interface at /goform/aspForm.EPSS 0.8%CVE-2023-29905MEDIUMH3C Magic R200 version R200V100R004 was discovered to contain a stack overflow via the UpdateSnat interface at /goform/aspForm.EPSS 0.8%CVE-2023-24613MEDIUMThe user interface of Array Networks AG Series and vxAG through 9.4.0.470 could allow a remote attacker to use the gdb tool to overwrite theEPSS 0.8%CVE-2023-27802MEDIUMH3C Magic R100 R100V100R005.bin was discovered to contain a stack overflow via the EditvsList parameter at /goform/aspForm. This vulnerabiliEPSS 0.8%CVE-2023-27801MEDIUMH3C Magic R100 R100V100R005.bin was discovered to contain a stack overflow via the DelDNSHnList interface at /goform/aspForm. This vulnerabiEPSS 0.8%CVE-2024-23709MEDIUMIn multiple locations, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote information disclosuEPSS 0.8%CVE-2024-24946HIGHA heap-based buffer overflow vulnerability exists in the Programming Software Connection CurrDir functionality of AutomationDirect P3-550E 1EPSS 0.8%CVE-2022-32837HIGHThis issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.5, tvOS 15.6, iOS 15.6 and iPadOS 15.6. An app may bEPSS 0.8%CVE-2026-64772CRITICALAn out-of-bounds write issue was addressed with improved input validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 aEPSS 0.8%CVE-2026-82391CRITICALOut-of-bounds write in Zephyr HTTP/2 server static-filesystem handler via corrupted receive-buffer lengthEPSS 0.8%CVE-2022-36054MEDIUMOut-of-bounds write when decompressing 6LoWPAN payload in Contiki-NGEPSS 0.8%CVE-2023-34417CRITICALMemory safety bugs present in Firefox 113. Some of these bugs showed evidence of memory corruption and we presume that with enough effort soEPSS 0.8%CVE-2025-2474CRITICALVulnerability in PCX Image Codec Impacts QNX Software Development PlatformEPSS 0.8%CVE-2022-41989CRITICALCVE-2022-41989EPSS 0.8%CVE-2023-29578HIGHmp4v2 v2.0.0 was discovered to contain a heap buffer overflow via the mp4v2::impl::MP4StringProperty::~MP4StringProperty() function at src/mEPSS 0.8%CVE-2026-59250HIGHMegaco flex scanner buffer overflow via oversized property parm nameEPSS 0.8%CVE-2023-34620HIGHAn issue was discovered hjson thru 3.0.0 allows attackers to cause a denial of service or other unspecified impacts via crafted object that EPSS 0.8%