Falhas do tipo CWE-190

1.670 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-2026-56406MEDIUMlibexpat before 2.8.2 has an integer overflow in XML_ParseBuffer because it lacked a check that was present in XML_Parse.EPSS 0.1%CVE-2026-44636HIGHlibsixel: integer overflow in encoderEPSS 0.1%CVE-2026-24875HIGHInteger overflow in modizerEPSS 0.1%CVE-2018-9481MEDIUMIn bta_hd_set_report_act of bta_hd_act.cc, there is a possible out-of-bounds read due to an integer overflow. This could lead to remote infoEPSS 0.1%CVE-2025-23241HIGHInteger overflow or wraparound in the Linux kernel-mode driver for some Intel(R) 800 Series Ethernet before version 1.17.2 may allow an authEPSS 0.1%CVE-2026-41257MEDIUMjq: Signed-int overflow in `stack_reallocate` (jq VM stack)EPSS 0.1%CVE-2026-24808HIGHA possible integer overflow vulnerability in RawTherapee/RawTherapeeEPSS 0.1%CVE-2022-42533HIGHIn shared_metadata_init of SharedMetadata.cpp, there is a possible out of bounds write due to an integer overflow. This could lead to local EPSS 0.1%CVE-2022-33219CRITICALInteger Overflow to Buffer Overflow in AutomotiveEPSS 0.1%CVE-2026-16174HIGHNetskope Endpoint DLP Driver Integer Overflow Leading to Kernel Pool OverflowEPSS 0.1%CVE-2026-56409MEDIUMxmlwf in libexpat before 2.8.2 has an integer overflow for the output filename when -d outputDir is used.EPSS 0.1%CVE-2026-18445MEDIUMInteger Overflow Vulnerability Resulting in an Out of Bounds Write in NI LabVIEWEPSS 0.1%CVE-2026-96749HIGHHeap out-of-bounds write via signed size overflow in BSON document encodingEPSS 0.1%CVE-2026-86138MEDIUMIn libxml2 before 2.15.4, xmlDictAddQString in dict.c has an integer overflow and resultant heap-based buffer overflow.EPSS 0.1%CVE-2025-52538HIGHImproper input validation within the XOCL driver may allow a local attacker to generate an integer overflow condition, potentially resultingEPSS 0.1%CVE-2017-13318MEDIUMIn HeifDataSource::readAt of HeifDecoderImpl.cpp, there is a possible out of bounds read due to an integer overflow. This could lead to remoEPSS 0.1%CVE-2024-23372HIGHInteger Overflow or Wraparound in GraphicsEPSS 0.1%CVE-2026-16416CRITICALInteger overflow in Chromecast in Google Chrome prior to 150.0.7871.182 allowed a local attacker to potentially perform a sandbox escape viaEPSS 0.1%CVE-2026-22801MEDIUMLIBPNG has an integer truncation causing heap buffer over-read in png_image_write_*EPSS 0.1%CVE-2025-48515MEDIUMInsufficient parameter sanitization in AMD Secure Processor (ASP) Boot Loader could allow an attacker with access to SPIROM upgrade to overwEPSS 0.1%