Fallos del tipo CWE-472

140 resultados

Estouro de inteiro

Ocorre quando uma operação aritmética com inteiros produz um resultado que ultrapassa o limite máximo (ou mínimo) que o tipo de dado consegue armazenar, causando wrap-around ou truncamento silencioso. Isso permite manipular lógica de validação, contadores e cálculos de tamanho de buffer, abrindo portas para corrupção de memória ou execução arbitrária.

Ejemplo

Um validador de upload verifica se `tamanho_arquivo < INT_MAX` para aceitar o arquivo. Um atacante envia um arquivo com tamanho calculado para, ao ser multiplicado por 2 em um cálculo interno, fazer o inteiro estourar e retornar um valor pequeno, burlando a restrição e causando buffer overflow.

Cómo mitigar

Use tipos com intervalo maior (como uint64_t para cálculos críticos), implemente verificações pré-operação para detectar risco de estouro antes de executar a aritmética, ou utilize bibliotecas seguras que tratam overflows. Em linguagens de alto nível, prefira tipos que crescem automaticamente (BigInteger) ou use saturação em vez de wrap-around.

CVE-2024-25153CRITICALRemote Code Execution in FileCatalyst Workflow 5.x prior to 5.1.6 Build 114EPSS 41.7%CVE-2025-6191HIGHInteger overflow in V8 in Google Chrome prior to 137.0.7151.119 allowed a remote attacker to potentially perform out of bounds memory accessEPSS 9.5%CVE-2025-7656HIGHInteger overflow in V8 in Google Chrome prior to 138.0.7204.157 allowed a remote attacker to potentially exploit heap corruption via a craftEPSS 9.1%CVE-2017-5261—In versions 4.3.2-R4 and prior of Cambium Networks cnPilot firmware, the 'ping' and 'traceroute' functions of the web administrative consoleEPSS 8.9%CVE-2017-5260—In versions 4.3.2-R4 and prior of Cambium Networks cnPilot firmware, although the option to access the configuration file is not available iEPSS 8.1%CVE-2025-10891HIGHInteger overflow in V8 in Google Chrome prior to 140.0.7339.207 allowed a remote attacker to potentially exploit heap corruption via a craftEPSS 6.6%CVE-2021-1293CRITICALCisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Execution VulnerabilitiesEPSS 5.4%CVE-2021-1294CRITICALCisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Execution VulnerabilitiesEPSS 4.5%CVE-2021-1290CRITICALCisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Execution VulnerabilitiesEPSS 4.2%CVE-2021-1291CRITICALCisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Execution VulnerabilitiesEPSS 4.2%CVE-2021-1289CRITICALCisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Execution VulnerabilitiesEPSS 4.2%CVE-2021-1295CRITICALCisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Execution VulnerabilitiesEPSS 4.2%CVE-2021-1292CRITICALCisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Execution VulnerabilitiesEPSS 4.2%CVE-2026-39364HIGHVite has a `server.fs.deny` bypass with queriesEPSS 2.1%CVE-2019-13927—A vulnerability has been identified in Desigo PX automation controllers PXC00-E.D, PXC50-E.D, PXC100-E.D, PXC200-E.D with Desigo PX Web moduEPSS 1.7%CVE-2020-1765LOWSpoofing of From field in several screensEPSS 1.5%CVE-2022-30597—A flaw was found in moodle where the description user field was not hidden when being set as a hidden user field.EPSS 1.3%CVE-2024-22049MEDIUMhttparty Multipart/Form-Data Request Tampering VulnerabilityEPSS 1.3%CVE-2025-35939MEDIUMCraft CMS stores user-provided content in session filesEPSS 1.3%KEVCVE-2021-27769MEDIUMHCL Sametime is vulnerable to an information disclosureEPSS 0.7%