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-2026-55764HIGHKlever-Go: SFT add-quantity `int64` overflow bypasses a finite per-nonce MaxSupplyEPSS 0.5%CVE-2026-24173HIGHNVIDIA Triton Inference Server contains a vulnerability where an attacker could cause a server crash by sending a malformed request to the sEPSS 0.5%CVE-2026-62816HIGHWindows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution VulnerabilityEPSS 0.5%CVE-2023-21730HIGHMicrosoft Cryptographic Services Elevation of Privilege VulnerabilityEPSS 0.5%CVE-2026-86389HIGHDell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 reEPSS 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-2025-29087LOWIn SQLite 3.44.0 through 3.49.0 before 3.49.1, the concat_ws() SQL function can cause memory to be written beyond the end of a malloc-allocaEPSS 0.5%CVE-2026-28497CRITICALTinyWeb: Integer Overflow in `_Val` (HTTP Request Smuggling)EPSS 0.5%CVE-2026-16280CRITICALGPU DDK - Integer overflow in _PMRLogicalOffsetToPhysicalOffsetEPSS 0.5%CVE-2022-25748CRITICALMemory corruption in WLAN due to integer overflow to buffer overflow while parsing GTK frames. in Snapdragon Auto, Snapdragon Compute, SnapdEPSS 0.5%CVE-2026-18670HIGHVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.5%CVE-2025-47712MEDIUMNbd: nbdkit: integer overflow triggers an assertion resulting in denial of serviceEPSS 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-2026-68552MEDIUMCoturn: uint16_t truncation overflow in STUN message length causes TCP stream framing bypassEPSS 0.5%CVE-2026-77408CRITICALRabbitMQ amqp091-go: Silent Data Truncation and State Corruption via Shortstr Integer OverflowEPSS 0.5%CVE-2026-54571HIGHESPAsyncWebServer: Integer overflow in multipart boundary parser causes denial of serviceEPSS 0.5%CVE-2026-73645MEDIUMOpenZeppelin Confidential Contracts ERC7984ERC20Wrapper: once a wrapper is filled, subsequent wrap requests do not revert and result in loss of funds.EPSS 0.5%CVE-2026-62357HIGHDragonflyDB `CMS.INITBYDIM` integer overflow leads to a remote, attacker-controlled heap out-of-bounds writeEPSS 0.5%CVE-2026-88361HIGHSumatraPDF 3.6.1 contains an integer overflow vulnerability in EngineMupdf::BuildPageLabelRec() when parsing PDF PageLabels /Nums entries.EPSS 0.5%