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-2026-54124HIGHWindows Terminal Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-55048HIGHMicrosoft Excel Remote Code Execution VulnerabilityEPSS 0.5%CVE-2023-21765HIGHWindows Print Spooler Elevation of Privilege VulnerabilityEPSS 0.5%CVE-2020-14344MEDIUMAn integer overflow leading to a heap-buffer overflow was found in The X Input Method (XIM) client was implemented in libX11 before version EPSS 0.5%CVE-2020-14311MEDIUMThere is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an EPSS 0.5%CVE-2026-31814HIGHYamux remote Panic via malformed WindowUpdate creditEPSS 0.5%CVE-2026-20339HIGHClamAV PESpin File Format Processing Integer Overflow VulnerabilityEPSS 0.5%CVE-2025-64098LOWFastDDS has Out-of-memory in readOctetVector via Manipulated DATA Submessage when DDS Security is enabledEPSS 0.5%CVE-2026-24403HIGHiccDEV Undefined Behavior in CIccProfile::CheckHeader() Leads to Integer OverflowEPSS 0.5%CVE-2025-70290CRITICALAn issue was discovered in Denx U-Boot before 2026.04. An integer overflow vulnerability in the ZFS filesystem support can be triggered by mEPSS 0.5%CVE-2026-14662HIGHPostgreSQL tsvector and tsquery undersize allocations, via integer wraparoundEPSS 0.5%CVE-2025-14178MEDIUMHeap buffer overflow in array_merge()EPSS 0.5%CVE-2023-21754HIGHWindows Kernel Elevation of Privilege VulnerabilityEPSS 0.5%CVE-2025-3500CRITICALInteger Overflow in Avast Antiviurs 25.1.981.6 on Windows may result in privilege escalationEPSS 0.5%CVE-2024-42415HIGHAn integer overflow vulnerability exists in the Compound Document Binary File format parser of v1.14.52 of the GNOME Project G Structured FiEPSS 0.5%CVE-2026-16834CRITICALVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.5%CVE-2026-3536HIGHInteger overflow in ANGLE in Google Chrome prior to 145.0.7632.159 allowed a remote attacker to potentially perform out of bounds memory accEPSS 0.5%CVE-2024-27101HIGHInteger overflow in chunking helper causes dispatching to miss elements or panicEPSS 0.5%CVE-2024-21905MEDIUMQTS, QuTS hero, QuTScloudEPSS 0.5%CVE-2023-2610HIGHInteger Overflow or Wraparound in vim/vimEPSS 0.5%