Falhas do tipo CWE-190

1.660 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-2026-32952MEDIUMgo-ntlmssp NTLM challenges can panic on malformed payloadsEPSS 1.0%CVE-2023-36576MEDIUMWindows Kernel Information Disclosure VulnerabilityEPSS 1.0%CVE-2026-6473HIGHPostgreSQL server undersizes allocations, via integer wraparoundEPSS 1.0%CVE-2022-0961HIGHThe microweber application allows large characters to insert in the input field "post title" which can allow attackers to cause a Denial of Service (DoS) via a crafted HTTP request. in microweber/microweberEPSS 1.0%CVE-2023-24908HIGHRemote Procedure Call Runtime Remote Code Execution VulnerabilityEPSS 1.0%CVE-2023-24869HIGHRemote Procedure Call Runtime Remote Code Execution VulnerabilityEPSS 1.0%CVE-2023-23405HIGHRemote Procedure Call Runtime Remote Code Execution VulnerabilityEPSS 1.0%CVE-2024-50944CRITICALInteger overflow vulnerability exists in SimplCommerce at commit 230310c8d7a0408569b292c5a805c459d47a1d8f in the shopping cart functionalityEPSS 1.0%CVE-2022-21154HIGHAn integer overflow vulnerability exists in the fltSaveCMP functionality of Leadtools 22. A specially-crafted BMP file can lead to an integeEPSS 1.0%CVE-2026-69408CRITICALMicrosoft Windows Media Foundation Remote Code Execution VulnerabilityEPSS 1.0%CVE-2026-35092HIGHCorosync: corosync: denial of service via integer overflow in join message validationEPSS 1.0%CVE-2025-31221HIGHAn integer overflow was addressed with improved input validation. This issue is fixed in iOS 18.5 and iPadOS 18.5, iPadOS 17.7.7, macOS SequEPSS 1.0%CVE-2023-36593HIGHMicrosoft Message Queuing (MSMQ) Remote Code Execution VulnerabilityEPSS 1.0%CVE-2023-35372HIGHMicrosoft Office Visio Remote Code Execution VulnerabilityEPSS 1.0%CVE-2023-36582HIGHMicrosoft Message Queuing (MSMQ) Remote Code Execution VulnerabilityEPSS 1.0%CVE-2026-69586CRITICALMicrosoft Windows PDF Remote Code Execution VulnerabilityEPSS 1.0%CVE-2023-28097HIGHOpenSIPS has vulnerability in the Content-Length ParserEPSS 1.0%CVE-2025-55154HIGHImageMagick: integer overflows in MNG magnificationEPSS 1.0%CVE-2022-1926HIGHInteger Overflow or Wraparound in polonel/trudeskEPSS 1.0%CVE-2021-3477—There's a flaw in OpenEXR's deep tile sample size calculations in versions before 3.0.0-beta. An attacker who is able to submit a crafted fiEPSS 1.0%