Falhas do tipo CWE-787

5.210 resultados

Escrita fora dos limites de memória

Ocorre quando um programa escreve dados em um endereço de memória fora da área alocada para um buffer ou variável. O código não valida o tamanho ou índice antes de gravar, permitindo sobrescrita de dados adjacentes, corrupção de estruturas críticas ou execução de código arbitrário.

Exemplo

Um formulário web que copia dados do usuário para um buffer de 256 bytes sem validar o tamanho da entrada. Se o atacante envia 500 bytes, a escrita transborda e sobrescreve a pilha, podendo hijackear o endereço de retorno da função.

Como mitigar

Use funções seguras de cópia (strncpy, strlcpy ao invés de strcpy; memcpy com tamanho máximo explícito) e sempre valide comprimento e índices antes de escrever. Em linguagens modernas, prefira estruturas com bounds-checking automático (arrays em Java, Rust, etc).

CVE-2023-51454MEDIUMA Out-of-bounds Write issue affecting the v2_sdk_service running on a set of DJI drone devices on the port 10000 could allow an attacker to EPSS 0.2%CVE-2023-23516—The issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.7.3, macOS Ventura 13.2, macOS Monterey 12.6.EPSS 0.2%CVE-2024-56548HIGHhfsplus: don't query the device logical block size multiple timesEPSS 0.2%CVE-2025-24122MEDIUMA downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions. This issue is fixed in macOS EPSS 0.2%CVE-2025-21865MEDIUMgtp: Suppress list corruption splat in gtp_net_exit_batch_rtnl().EPSS 0.2%CVE-2018-25213HIGHNsauditor 3.0.28.0 Local SEH Buffer OverflowEPSS 0.2%CVE-2026-11091HIGHInappropriate implementation in Dawn in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to potentially perform out of bounds EPSS 0.2%CVE-2018-25219HIGHPassFab Excel Password Recovery 8.3.1 SEH Buffer OverflowEPSS 0.2%CVE-2026-0962MEDIUMOut-of-bounds Write in WiresharkEPSS 0.2%CVE-2026-10660MEDIUMShared reassembly buffer in Bluetooth BAP Broadcast Assistant enables cross-connection memory corruptionEPSS 0.2%CVE-2024-49749HIGHIn DGifSlurp of dgif_lib.c, there is a possible out of bounds write due to an integer overflow. This could lead to remote code execution witEPSS 0.2%CVE-2023-41032HIGHA vulnerability has been identified in Parasolid V34.1 (All versions < V34.1.258), Parasolid V35.0 (All versions < V35.0.253), Parasolid V35EPSS 0.2%CVE-2024-45470HIGHA vulnerability has been identified in Teamcenter Visualization V14.2 (All versions < V14.2.0.14), Teamcenter Visualization V14.3 (All versiEPSS 0.2%CVE-2026-9930MEDIUMOut of bounds write in Dawn in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker to perform an out of bounds memory wriEPSS 0.2%CVE-2023-51456MEDIUMA Improper Input Validation issue affecting the v2_sdk_service running on a set of DJI drone devices on the port 10000 could allow an attackEPSS 0.2%CVE-2024-54522HIGHThe issue was addressed with improved bounds checks. This issue is fixed in iOS 18.2 and iPadOS 18.2, macOS Sequoia 15.2, tvOS 18.2, watchOSEPSS 0.2%CVE-2022-35407HIGHAn issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. A stack buffer overflow leads to arbitrary code execution in the SeEPSS 0.2%CVE-2024-54517HIGHThe issue was addressed with improved bounds checks. This issue is fixed in iOS 18.2 and iPadOS 18.2, macOS Sequoia 15.2, tvOS 18.2, watchOSEPSS 0.2%CVE-2022-49846HIGHudf: Fix a slab-out-of-bounds write bug in udf_find_entry()EPSS 0.2%CVE-2025-20751MEDIUMIn Modem, there is a possible system crash due to a missing bounds check. This could lead to remote denial of service, if a UE has connectedEPSS 0.2%