Falhas do tipo CWE-190

1.664 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-2026-71393MEDIUMHeap Buffer Overflow in GNU Emacs for AndroidEPSS 0.4%CVE-2023-35057HIGHAn integer overflow vulnerability exists in the LXT2 lxt2_rd_trace value elements allocation functionality of GTKWave 3.3.115. A specially cEPSS 0.4%CVE-2024-9123HIGHInteger overflow in Skia in Google Chrome prior to 129.0.6668.70 allowed a remote attacker to perform an out of bounds memory write via a crEPSS 0.4%CVE-2026-65346HIGHAn integer overflow was addressed with improved input validation. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Sequoia 15.8, mEPSS 0.4%CVE-2024-46953HIGHAn issue was discovered in base/gsdevice.c in Artifex Ghostscript before 10.04.0. An integer overflow when parsing the filename format strinEPSS 0.4%CVE-2026-17159HIGHVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.4%CVE-2026-16852HIGHVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.4%CVE-2026-54755CRITICALKlever-Go: Integer overflow in split-royalty validation enables unbounded minting of KLV (native token)EPSS 0.4%CVE-2026-59199HIGHPillow: Heap out-of-bounds write `Image.paste()` / `Image.crop()` via signed coordinate overflowEPSS 0.4%CVE-2025-63757HIGHInteger overflow vulnerability in the yuv2ya16_X_c_template function in libswscale/output.c in FFmpeg 8.0.EPSS 0.4%CVE-2026-63384HIGHLibevent: `evtag_unmarshal_header()` decodes a wire `uint32` length into a signed `int` return value.EPSS 0.4%CVE-2026-73645MEDIUMOpenZeppelin Confidential Contracts ERC7984ERC20Wrapper: once a wrapper is filled, subsequent wrap requests do not revert and result in loss of funds.EPSS 0.4%CVE-2021-20224—An integer overflow issue was discovered in ImageMagick's ExportIndexQuantum() function in MagickCore/quantum-export.c. Function calls to GeEPSS 0.4%CVE-2026-50161CRITICALlibre: Integer overflow in websock_decode() masked frame length check leads to heap buffer overflowEPSS 0.4%CVE-2025-0101MEDIUMWAGO: Year 2038 problemEPSS 0.4%CVE-2025-62599HIGHeprosima Fast DDS affected by Out-of-Memory in readPropertySeq via Manipulated DATA Submessage when DDS Security is enabledEPSS 0.4%CVE-2020-27350MEDIUMapt integer wraparoundEPSS 0.4%CVE-2026-90593MEDIUMembedded-graphics image_raw.rs draw_sub_image integer overflowEPSS 0.4%CVE-2023-32650HIGHAn integer overflow vulnerability exists in the FST_BL_GEOM parsing maxhandle functionality of GTKWave 3.3.115, when compiled as a 32-bit biEPSS 0.4%CVE-2023-35992HIGHAn integer overflow vulnerability exists in the FST fstReaderIterBlocks2 vesc allocation functionality of GTKWave 3.3.115, when compiled as EPSS 0.4%