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-2021-27433HIGHARM mbed-ualloc memory library Integer Overflow or WraparoundEPSS 1.8%CVE-2024-38019HIGHMicrosoft Windows Performance Data Helper Library Remote Code Execution VulnerabilityEPSS 1.8%CVE-2025-47268MEDIUMping in iputils before 20250602 allows a denial of service (application error or incorrect data collection) via a crafted ICMP Echo Reply paEPSS 1.8%CVE-2023-21803CRITICALWindows iSCSI Discovery Service Remote Code Execution VulnerabilityEPSS 1.8%CVE-2024-21812CRITICALAn integer overflow vulnerability exists in the sopen_FAMOS_read functionality of The Biosig Project libbiosig 2.5.0 and Master Branch (ab0eEPSS 1.8%CVE-2021-22671—Multiple integer overflow issues exist while processing long domain names, which may allow an attacker to remotely execute code on the SimplEPSS 1.8%CVE-2021-22679—The affected product is vulnerable to an integer overflow while processing HTTP headers, which may allow an attacker to remotely execute codEPSS 1.8%CVE-2024-21420HIGHMicrosoft WDAC OLE DB provider for SQL Server Remote Code Execution VulnerabilityEPSS 1.7%CVE-2024-47606HIGHGHSL-2024-166: GStreamer Integer overflows in MP4/MOV demuxer and memory allocator that can lead to out-of-bounds writesEPSS 1.7%CVE-2021-27419HIGHuClibc-ng Integer Overflow or WraparoundEPSS 1.7%CVE-2024-21379HIGHMicrosoft Word Remote Code Execution VulnerabilityEPSS 1.7%CVE-2024-32655HIGHNpgsql Vulnerable to SQL Injection via Protocol Message Size OverflowEPSS 1.7%CVE-2016-9601MEDIUMghostscript before version 9.21 is vulnerable to a heap based buffer overflow that was found in the ghostscript jbig2_decode_gray_scale_imagEPSS 1.7%CVE-2024-43628HIGHWindows Telephony Service Remote Code Execution VulnerabilityEPSS 1.7%CVE-2025-21243HIGHWindows Telephony Service Remote Code Execution VulnerabilityEPSS 1.7%CVE-2025-21244HIGHWindows Telephony Service Remote Code Execution VulnerabilityEPSS 1.7%CVE-2023-34453MEDIUMsnappy-java's Integer Overflow vulnerability in shuffle leads to DoSEPSS 1.7%CVE-2023-36911CRITICALMicrosoft Message Queuing (MSMQ) Remote Code Execution VulnerabilityEPSS 1.7%CVE-2022-3515CRITICALA vulnerability was found in the Libksba library due to an integer overflow within the CRL parser. The vulnerability can be exploited remoteEPSS 1.7%CVE-2023-37327HIGHGStreamer FLAC File Parsing Integer Overflow Remote Code Execution VulnerabilityEPSS 1.7%