Falhas do tipo CWE-1284

324 resultados

Validação inadequada de quantidade em entrada

Ocorre quando o software aceita entrada do usuário que especifica uma quantidade (número de items, tamanho de buffer, contagem de loops, etc.) sem validar se esse valor está dentro dos limites esperados. Um atacante pode fornecer uma quantidade excessiva, nula ou negativa, causando alocação de memória descontrolada, loops infinitos, underflow ou acesso a dados não inicializados.

Exemplo

Um serviço web recebe um parâmetro 'quantidade_registros' para retornar dados. Se não validar o valor, um atacante envia quantidade_registros=999999999, forçando alocação massiva de memória e negação de serviço; ou envia -1 e o código interpreta como unsigned, provocando comportamento inesperado.

Como mitigar

Valide explicitamente toda entrada que represente uma quantidade: defina limites mínimo e máximo aceitáveis, rejeite valores fora do intervalo, e use tipos numéricos apropriados (prefira unsigned para contagens, com overflow checks). Teste casos extremos (zero, negativo, muito grande).

CVE-2026-1352MEDIUMIBM® Db2® is vulnerable to a trap or return SQLCODE -901 when compiling a specially crafted query with a defined indexEPSS 0.3%CVE-2026-78010HIGHFireware OS Stack-Based Buffer Overflow in iked Allows Unauthenticated Denial of ServiceEPSS 0.3%CVE-2026-16025HIGHImproper Payment Validation in PayTR's PayTR Virtual Pos iFrame API (v9x) WHMCS ModuleEPSS 0.3%CVE-2025-8320HIGHTesla Wall Connector Content-Length Header Improper Input Validation Remote Code Execution VulnerabilityEPSS 0.3%CVE-2026-9704MEDIUMKeycloak: keycloak: privilege escalation due to oversized subject_token jwtEPSS 0.3%CVE-2025-36428MEDIUMIBM Db2 Denial of ServiceEPSS 0.3%CVE-2024-31957MEDIUMA vulnerability was discovered in Samsung Mobile Processors Exynos 2200 and Exynos 2400 where they lack a check for the validation of nativeEPSS 0.3%CVE-2026-83115HIGHVulnerability in the Oracle Applications Manager product of Oracle E-Business Suite (component: Command Line - RapidClone). Supported versiEPSS 0.3%CVE-2026-59531HIGHWordPress Falcon – WordPress Optimizations & Tweaks plugin <= 2.10.0 - Unknown vulnerabilityEPSS 0.3%CVE-2025-12385HIGHImproper validation of <img> tag size in Text component parserEPSS 0.3%CVE-2026-40093HIGHnimiq-blockchain is missing a wall-clock upper bound on block timestampsEPSS 0.3%CVE-2025-52534MEDIUMImproper bound check within AMD CPU microcode can allow a malicious guest to write to host memory, potentially resulting in loss of integritEPSS 0.3%CVE-2026-2474HIGHCrypt::URandom versions from 0.41 before 0.55 for Perl is vulnerable to a heap buffer overflow in the XS function crypt_urandom_getrandom()EPSS 0.3%CVE-2025-49292MEDIUMWordPress Profile Builder plugin <= 3.13.8 - Content Spoofing VulnerabilityEPSS 0.3%CVE-2023-0195LOWNVIDIA GPU Display Driver for Windows contains a vulnerability in the kernel mode layer driver nvlddmkm.sys, where an can cause CWE-1284, whEPSS 0.3%CVE-2026-27384CRITICALWordPress W3 Total Cache plugin <= 2.9.1 - Arbitrary Code Execution vulnerabilityEPSS 0.3%CVE-2026-76899MEDIUMCordysCRM: Authenticated SQL injection via `sort.name` on `POST /account-pool/page`EPSS 0.3%CVE-2023-52343MEDIUMIn SecurityCommand message after as security has been actived., there is a possible improper input validation. This could lead to remote infEPSS 0.3%CVE-2026-48977HIGHOpenSlide: Arbitrary memory write with crafted Ventana BIF fileEPSS 0.3%CVE-2024-7488MEDIUMBusiness Logic Error in RestApp Inc.'s Online Ordering SystemEPSS 0.3%