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-2025-32718HIGHWindows SMB Client Elevation of Privilege VulnerabilityEPSS 0.5%CVE-2026-73193CRITICALDBI versions before 1.652 for Perl allow a heap out-of-bounds write on 32-bit perl via an integer wraparound in the output buffer size computed by preparseEPSS 0.5%CVE-2026-33298HIGHllama.cpp has a Heap Buffer Overflow via Integer Overflow in GGUF Tensor ParsingEPSS 0.5%CVE-2026-62735HIGHWindows HTTP.sys Elevation of Privilege VulnerabilityEPSS 0.5%CVE-2025-29072HIGHAn integer overflow in Nethermind Juno before v.12.05 within the Sierra bytecode decompression logic within the "cairo-lang-starknet-classesEPSS 0.5%CVE-2020-10726MEDIUMA vulnerability was found in DPDK versions 19.11 and above. A malicious container that has direct access to the vhost-user socket can keep sEPSS 0.5%CVE-2025-23324HIGHNVIDIA Triton Inference Server for Windows and Linux contains a vulnerability where a user could cause an integer overflow or wraparound, leEPSS 0.5%CVE-2025-12501HIGHInteger overflow in GameMaker IDE below 2024.14.0 version can lead to can lead to application crashes through denial-of-service attacks (DoSEPSS 0.5%CVE-2026-19313CRITICALFireware OS Pre-Authentication Heap Buffer Overflow in iked Allows Remote Code ExecutionEPSS 0.5%CVE-2025-22059HIGHudp: Fix multiple wraparounds of sk->sk_rmem_alloc.EPSS 0.5%CVE-2017-7482HIGHIn the Linux kernel before version 4.12, Kerberos 5 tickets decoded when using the RXRPC keys incorrectly assumes the size of a field. This EPSS 0.5%CVE-2026-94030LOWSerenityOS LibGfx BMPLoader.cpp decode_bmp_pixel_data integer overflowEPSS 0.5%CVE-2026-32875HIGHUltraJSON has an integer overflow handling large indent leads to buffer overflow or infinite loopEPSS 0.5%CVE-2024-3077MEDIUMBluetooth: integer underflow in gatt_find_info_rspEPSS 0.5%CVE-2025-3360LOWGlibc: glib prior to 2.82.5 is vulnerable to integer overflow and buffer under-read when parsing a very long invalid iso 8601 timestamp with g_date_time_new_from_iso8601().EPSS 0.5%CVE-2026-28497CRITICALTinyWeb: Integer Overflow in `_Val` (HTTP Request Smuggling)EPSS 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-2026-7598MEDIUMlibssh2 userauth.c userauth_password integer overflowEPSS 0.5%CVE-2026-54124HIGHWindows Terminal Remote Code Execution VulnerabilityEPSS 0.5%CVE-2023-21765HIGHWindows Print Spooler Elevation of Privilege VulnerabilityEPSS 0.5%