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-2026-25210MEDIUMIn libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow chEPSS 0.2%CVE-2024-50270MEDIUMmm/damon/core: avoid overflow in damon_feed_loop_next_input()EPSS 0.2%CVE-2026-61722MEDIUMFluidSynth: DLS Articulation Chunk Integer OverflowEPSS 0.2%CVE-2025-22001HIGHaccel/qaic: Fix integer overflow in qaic_validate_req()EPSS 0.2%CVE-2026-11299MEDIUMInteger overflow in Fonts in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to obtain potentially sensitive information fromEPSS 0.2%CVE-2026-39855MEDIUMosslsigncode has an Integer Underflow in PE Page Hash Calculation Can Cause Out-of-Bounds ReadEPSS 0.2%CVE-2023-28185MEDIUMAn integer overflow was addressed through improved input validation. This issue is fixed in tvOS 16.4, macOS Big Sur 11.7.5, iOS 16.4 and iPEPSS 0.2%CVE-2026-32845MEDIUMjkuhlmann / cgltf <= 1.15 Sparse Accessor Validation Integer OverflowEPSS 0.2%CVE-2026-45130MEDIUMVim: Heap Buffer Overflow in spell file loadingEPSS 0.2%CVE-2026-15108MEDIUMInteger overflow in Extensions API in Google Chrome prior to 150.0.7871.115 allowed an attacker who convinced a user to install a malicious EPSS 0.2%CVE-2026-57432HIGHPerl versions before 5.40.5-RC1, from 5.41.0 before 5.42.3-RC1, from 5.43.0 before 5.43.11 have an integer overflow in S_measure_struct leading to an out-of-bounds heap read in pack and unpackEPSS 0.2%CVE-2026-3308HIGHCVE-2026-3308EPSS 0.2%CVE-2026-52969HIGHKVM: Reject wrapped offset in kvm_reset_dirty_gfn()EPSS 0.2%CVE-2025-33218HIGHNVIDIA GPU Display Driver for Windows contains a vulnerability in the kernel mode layer (nvlddmkm.sys), where an attacker could cause an intEPSS 0.2%CVE-2025-33219HIGHNVIDIA Display Driver for Linux contains a vulnerability in the NVIDIA kernel module where an attacker could cause an integer overflow or wrEPSS 0.2%CVE-2026-53763LOWOP-TEE has AES-GCM 32-bit integer overflow in length counters that breaks authentication guaranteeEPSS 0.2%CVE-2026-53059MEDIUMdm log: fix out-of-bounds write due to region_count overflowEPSS 0.2%CVE-2026-0128MEDIUMIn RtcpFbPacket::decodeRtcpFbPacket, there is a possible out of bounds read due to an integer overflow. This could lead to remote informatioEPSS 0.2%CVE-2024-3757LOWArkcompiler runtime has an integer overflow vulnerabilityEPSS 0.2%CVE-2026-21673HIGHiccDEV has Integer Overflow/Underflow in CIccXmlArrayType::ParseTextCountNum()EPSS 0.2%