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-2021-0221MEDIUMJunos OS: QFX Series: Traffic loop Denial of Service (DoS) upon receipt of specific IP multicast trafficEPSS 0.5%CVE-2024-4611HIGHAppPresser <= 4.3.2 - Improper Missing Encryption Exception Handling to Authentication BypassEPSS 0.5%CVE-2023-21036MEDIUMIn BitmapExport.java, there is a possible failure to truncate images due to a logic error in the code.Product: AndroidVersions: Android kernEPSS 0.5%CVE-2026-20280HIGHCisco IOS XR Software Security Hardening Release: September 2026EPSS 0.5%CVE-2026-56338MEDIUMCapgo - Denial of Service in 2FA Email Verification via /auth/v1/otp EndpointEPSS 0.5%CVE-2025-59322HIGHCPSD CryptoPro Secure Disk for Bitlocker before v7.7.4 fails to properly handle decryption errors and allows encrypted volumes to be mountedEPSS 0.5%CVE-2024-6468HIGHVault Vulnerable to Denial of Service When Setting a Proxy Protocol BehaviorEPSS 0.5%CVE-2026-26446HIGHStomper 5e2741e is vulnerable to Denial of Service. When a broker sends data to a client whose TCP connection was already closed by the peerEPSS 0.5%CVE-2024-55548MEDIUMDenial of ServiceEPSS 0.5%CVE-2023-0397CRITICALDoS: Invalid Initialization in le_read_buffer_size_completeEPSS 0.5%CVE-2026-56818MEDIUMNetty: RedisArrayAggregator max-elements failure leaves retained partial aggregate stateEPSS 0.5%CVE-2025-61601HIGHBigBlueButton vulnerable to DoS via PollSubmitVote GraphQL mutationEPSS 0.5%CVE-2025-54134HIGHHAX CMS NodeJs's Improper Error Handling Leads to Denial of ServiceEPSS 0.5%CVE-2026-20187HIGHCisco RoomOS Security Hardening Release - Exceptional Conditions Handling VulnerabilitiesEPSS 0.5%CVE-2025-24371HIGHMalicious peer can make node stuck in blocksync in github.com/cometbft/cometbftEPSS 0.5%CVE-2026-13753HIGHCertain HP DeskJet All in One – Potential Information DisclosureEPSS 0.5%CVE-2026-20329CRITICALCisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Exceptional Conditions Handling VulnerabilitiesEPSS 0.5%CVE-2024-39945MEDIUMA vulnerability has been found in Dahua products.  After obtaining the administrator's username and password, the attacker can send a carefuEPSS 0.5%CVE-2026-76481HIGHCisco Unified Communications Products Hardening Release: October 2026 - Improper Check or Handling of Exceptional Conditions VulnerabilitiesEPSS 0.5%CVE-2025-11594MEDIUMywxbear PHP-Bookstore-Website-Example Quantity index.php improper validation of specified quantity in inputEPSS 0.5%