Falhas do tipo CWE-190

1.956 resultados

Estouro ou Envolvimento de Inteiro

Ocorre quando uma operação aritmética produz um valor que excede o limite máximo (ou mínimo) que o tipo de dado inteiro pode armazenar, causando o valor envolver-se para o lado oposto ou comportamento inesperado. Isso permite que atacantes contornem validações, aloquem memória inadequada, ou causem travamentos ao explorar essa descontinuidade.

Exemplo

Um servidor de upload limita arquivos a 2 GB verificando se size < 2147483648 (INT_MAX). Um atacante envia size=2147483648, que em inteiro de 32 bits assinado vira -2147483648. A validação passa, mas durante a alocação de buffer o sistema trata como valor negativo ou inesperado, causando falha ou bypass de proteção.

Como mitigar

Use tipos inteiros sem sinal (unsigned) ou de maior capacidade (64 bits) quando apropriado; valide entradas contra limites explícitos *antes* de operações aritméticas; utilize funções de verificação de overflow fornecidas pela linguagem ou biblioteca (ex: __builtin_add_overflow em C, SafeInt em .NET); evite conversões implícitas entre tipos.

CVE-2026-70113HIGHWindows Client for NFS Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-69354HIGHWindows Error Reporting Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-69916HIGHWindows NTFS Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-70008HIGHWindows IP Over USB Service Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-69957HIGHWindows Overlay Filter Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-42580MEDIUMNetty: HTTP Request Smuggling due to incorrect chunk size parsingEPSS 0.4%CVE-2020-10723MEDIUMA memory corruption issue was found in DPDK versions 17.05 and above. This flaw is caused by an integer truncation on the index of a payloadEPSS 0.4%CVE-2020-10722MEDIUMA vulnerability was found in DPDK versions 18.05 and above. A missing check for an integer overflow in vhost_user_set_log_base() could resulEPSS 0.4%CVE-2020-27350MEDIUMapt integer wraparoundEPSS 0.4%CVE-2025-31203MEDIUMAn integer overflow was addressed with improved input validation. This issue is fixed in iOS 18.4 and iPadOS 18.4, iPadOS 17.7.6, macOS SequEPSS 0.4%CVE-2026-26134HIGHMicrosoft Office Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2025-48174MEDIUMIn libavif before 1.3.0, makeRoom in stream.c has an integer overflow and resultant buffer overflow in stream->offset+size.EPSS 0.4%CVE-2026-53705HIGHGstreamer1-plugins-good: gstreamer: heap buffer overflow in wavpack decoder via integer overflowEPSS 0.4%CVE-2026-40915MEDIUMGimp: gimp: heap buffer overflow due to integer overflow in fits image loaderEPSS 0.4%CVE-2024-57256HIGHAn integer overflow in ext4fs_read_symlink in Das U-Boot before 2025.01-rc1 occurs for zalloc (adding one to an le32 variable) via a craftedEPSS 0.4%CVE-2023-29364HIGHWindows Authentication Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2023-38650HIGHMultiple integer overflow vulnerabilities exist in the VZT vzt_rd_block_vch_decode times parsing functionality of GTKWave 3.3.115. A specialEPSS 0.4%CVE-2023-38651HIGHMultiple integer overflow vulnerabilities exist in the VZT vzt_rd_block_vch_decode times parsing functionality of GTKWave 3.3.115. A specialEPSS 0.4%CVE-2026-43908HIGHOpenImageIO: Signed integer overflow in ConvertCbYCrYToRGB leads to heap out-of-bounds write in DPX 4:2:2 decoderEPSS 0.4%CVE-2026-83601MEDIUMNetdata: Streaming protocol dimension slot has no upper-bound guard, allowing integer overflow and out-of-bounds writeEPSS 0.4%