Weaknesses of type CWE-703

181 results

Tratamento inadequado de condições de erro

Quando o código não verifica ou trata corretamente situações anormais (erros, exceções, valores inesperados), ele pode se comportar de forma impredizível ou insegura. O programa segue um caminho que não deveria, ignorando sinais de falha que poderiam evitar consequências maiores.

Example

Um serviço lê um arquivo de configuração sem verificar se a leitura falhou; se o arquivo não existir, as variáveis ficam vazias ou com lixo de memória, e o programa usa valores inválidos em decisões críticas de segurança, abrindo brechas para ataques.

How to mitigate

Sempre capture e trate exceções explicitamente, valide retornos de função (códigos de erro, null, valores fora do escopo), e log eventos anômalos. Implemente fallbacks sensatos e recuse operações quando o estado não for confiável.

CVE-2024-38435MEDIUMUnitronics Vision PLC - CWE-703: Improper Check or Handling of Exceptional ConditionsEPSS 0.4%CVE-2026-21895LOWrsa crate has potential panic on a prime being equal to 1EPSS 0.4%CVE-2024-50954HIGHThe XINJE XL5E-16T and XD5E-24R-E programmable logic controllers V3.5.3b-V3.7.2a have a vulnerability in handling Modbus messages. When a TCEPSS 0.4%CVE-2026-112684MEDIUMThis issue was addressed through improved state management. This issue is fixed in Safari 27.2, iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iEPSS 0.4%CVE-2026-76527CRITICALImproper Check or Handling of Exceptional Conditions in Splunk SOAREPSS 0.4%CVE-2026-57445HIGHGardens v2: Approve-side dispute resolution drains active streaming escrow reserveEPSS 0.4%CVE-2024-47215HIGHAn issue was discovered in Snowbridge setups sending data to Google Tag Manager Server Side. It involves attaching an invalid GTM SS previewEPSS 0.4%CVE-2018-5463—A structured exception handler overflow vulnerability in Leao Consultoria e Desenvolvimento de Sistemas (LCDS) LTDA ME LAquis SCADA 4.1.0.33EPSS 0.4%CVE-2023-5038HIGHUnauthenticated DoSEPSS 0.4%CVE-2022-22265MEDIUMAn improper check or handling of exceptional conditions in NPU driver prior to SMR Jan-2022 Release 1 allows arbitrary memory write and codeEPSS 0.4%KEVCVE-2025-3084MEDIUMMongoDB Server may crash due to improper validation of explain commandEPSS 0.4%CVE-2025-64435MEDIUMKubeVirt VMI Denial-of-Service (DoS) Using Pod ImpersonationEPSS 0.4%CVE-2025-13016HIGHIncorrect boundary conditions in the JavaScript: WebAssembly componentEPSS 0.4%CVE-2026-18638MEDIUMVelociraptor server crash via the SetPassword APIEPSS 0.4%CVE-2026-28407MEDIUMmalcontent's nested archive extraction failure can drop content from scan inputsEPSS 0.4%CVE-2024-37992MEDIUMA vulnerability has been identified in SIMATIC Reader RF610R CMIIT (6GT2811-6BC10-2AA0) (All versions < V4.2), SIMATIC Reader RF610R ETSI (6EPSS 0.4%CVE-2019-10928—A vulnerability has been identified in SCALANCE SC-600 (V2.0). An authenticated attacker with access to port 22/tcp as well as physical acceEPSS 0.4%CVE-2021-0241HIGHJunos OS: Receipt of specific DHCPv6 packet may cause jdhcpd to crash and restartEPSS 0.4%CVE-2025-31998LOWHCL Unica Centralized Offer Management is vulnerable to poor unhandled exceptions which exposes sensitive informationEPSS 0.4%CVE-2021-0240HIGHJunos OS: Receipt of malformed DHCPv6 packets causes jdhcpd to crash and restart.EPSS 0.4%