Falhas do tipo CWE-190

1.661 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-2026-59879HIGHImmutable.js `List` 32-bit trie overflow → unrecoverable DoSEPSS 0.5%CVE-2026-55057MEDIUMMicrosoft Office Information Disclosure VulnerabilityEPSS 0.5%CVE-2022-2743HIGHInteger overflow in Window Manager in Google Chrome on Chrome OS and Lacros prior to 104.0.5112.79 allowed a remote attacker who convinced aEPSS 0.5%CVE-2024-2212HIGHInteger wraparounds, under-allocations, and heap buffer overflows in Eclipse ThreadX xQueueCreate() and xQueueCreateSet()EPSS 0.5%CVE-2026-44673HIGHlibyang: lyb_read_string() integer overflow → heap buffer overflowEPSS 0.5%CVE-2025-23323HIGHNVIDIA Triton Inference Server for Windows and Linux contains a vulnerability where a user could cause an integer overflow or wraparound, leEPSS 0.5%CVE-2025-70293CRITICALAn issue was discovered in Denx U-Boot before 2026.04. An integer overflow vulnerability exists in function ext4fs_get_bgdtable, the size caEPSS 0.5%CVE-2026-15562HIGHJboss-remoting: jboss-remoting: integer overflow in messagereader leads to pre-authentication denial of serviceEPSS 0.5%CVE-2026-30909CRITICALCrypt::NaCl::Sodium versions through 2.002 for Perl has potential integer overflowsEPSS 0.5%CVE-2020-17396HIGHThis vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.4. An attacker must firEPSS 0.5%CVE-2026-63091HIGHProFTPD mod_sftp Signed Integer Overflow via SCP Size-Record ParserEPSS 0.5%CVE-2024-52912HIGHBitcoin Core before 0.21.0 allows a network split that is resultant from an integer overflow (calculating the time offset for newly connectiEPSS 0.5%CVE-2022-20684HIGHCisco IOS XE Wireless Controller Software for the Catalyst 9000 Family SNMP Trap Denial of Service VulnerabilityEPSS 0.5%CVE-2023-28588HIGHInteger Overflow or Wraparound in Bluetooth HostEPSS 0.5%CVE-2026-44812HIGHWindows Graphics Component Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-44803HIGHWindows Graphics Component Remote Code Execution VulnerabilityEPSS 0.5%CVE-2025-6052LOWGlib: integer overflow in g_string_maybe_expand() leading to potential buffer overflow in glib gstringEPSS 0.5%CVE-2023-28909HIGHInteger Overflow Leading to MTU BypassEPSS 0.5%CVE-2023-21730HIGHMicrosoft Cryptographic Services Elevation of Privilege VulnerabilityEPSS 0.5%CVE-2026-71479CRITICALNew API: Integer overflow in quota billing yields negative charges (self-crediting)EPSS 0.5%