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-2023-39270HIGHMultiple integer overflow vulnerabilities exist in the LXT2 facgeometry parsing functionality of GTKWave 3.3.115. A specially crafted .lxt2 EPSS 0.4%CVE-2023-36864HIGHAn integer overflow vulnerability exists in the fstReaderIterBlocks2 temp_signal_value_buf allocation functionality of GTKWave 3.3.115. A spEPSS 0.4%CVE-2026-17705HIGHInteger overflow in libxml in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via EPSS 0.4%CVE-2026-19174HIGHInteger overflow in V8 in Google Chrome prior to 151.0.7922.109 allowed a remote attacker to execute arbitrary code inside a sandbox via a cEPSS 0.4%CVE-2026-65391HIGHAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in Safari 26.6.1, iOS 26.6.1 and iPadOS 26.6.1EPSS 0.4%CVE-2026-107820MEDIUMx64dbg-MCP Server vulnerable to pre-authentication denial of service through Content-Length integer overflowEPSS 0.4%CVE-2026-65390HIGHAn integer overflow was addressed with improved input validation. This issue is fixed in Safari 26.6.1, iOS 26.6.1 and iPadOS 26.6.1, macOS EPSS 0.4%CVE-2026-90473MEDIUMmsgpack-java through 0.9.12 Integer Overflow via MAP32EPSS 0.4%CVE-2026-82076HIGHInteger Overflow in Query Planner Leads to Unbounded Memory Allocation and Denial of Service in MongoDB ServerEPSS 0.4%CVE-2025-48816HIGHHID Class Driver Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2025-55068HIGHDover Fueling Solutions ProGauge MagLink LX4 Devices Integer Overflow or WraparoundEPSS 0.4%CVE-2026-88118HIGHWindows Background Intelligent Transfer Service (BITS) Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2026-95616HIGHApache WSS4J: Unauthenticated denial of service via integer overflow in DER parsing of X.509 certificate extensionsEPSS 0.4%CVE-2026-59346CRITICALVMware Workstation and Fusion VMXNET3 integer-overflow vulnerabilityEPSS 0.4%CVE-2026-91728CRITICALInteger overflow in V8 in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a EPSS 0.4%CVE-2026-107446MEDIUMcontainerd overlaybd through 1.0.18 has a do_load_index (LSMT index loading) integer overflow (and resultant out-of-bounds heap access) for EPSS 0.4%CVE-2026-54903MEDIUMOj: Integer Overflow in Oj.load 2GB String HandlingEPSS 0.4%CVE-2026-27951MEDIUMFreeRDP has possible Integer overflow in Stream_EnsureCapacityEPSS 0.4%CVE-2025-48964MEDIUMping in iputils before 20250602 allows a denial of service (application error in adaptive ping mode or incorrect data collection) via a crafEPSS 0.4%CVE-2026-79292HIGHInteger overflow in Chromecast in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process toEPSS 0.4%