Weaknesses of type CWE-295

859 results

Validação inadequada de certificado SSL/TLS

A aplicação falha em validar corretamente o certificado SSL/TLS do servidor remoto, aceitando certificados inválidos, expirados ou de hosts diferentes. Isso permite ataques man-in-the-middle onde um atacante intercepta a comunicação sem ser detectado, comprometendo a confidencialidade e integridade dos dados.

Example

Uma app mobile que desativa a verificação de certificado para 'facilitar testes' acaba em produção; um atacante na mesma rede Wi-Fi intercepta requisições HTTPS para roubar tokens de autenticação ou dados sensíveis sem que a app perceba.

How to mitigate

Sempre validar o certificado do servidor (hostname, cadeia de certificados, data de validade), nunca desabilitar verificações em produção, e usar apenas bibliotecas atualizadas que implementam corretamente as regras de validação de TLS.

CVE-2026-48021CRITICALepa4all Security Incident: Implement keystore based on Telematik TSL, implement hostname check and certificate check for lib-vauEPSS 0.2%CVE-2023-29175MEDIUMAn improper certificate validation vulnerability [CWE-295] in FortiOS 6.2 all versions, 6.4 all versions, 7.0.0 through 7.0.10, 7.2.0 and FoEPSS 0.2%CVE-2026-82662HIGHNodemailer before 8.0.8 TLS Certificate Validation BypassEPSS 0.2%CVE-2025-15557HIGHImproper Certificate Validation in TP-Link Tapo H100 and P100 Allows Man-in-the-Middle AttackEPSS 0.2%CVE-2026-55964MEDIUMChain intermediate CA:TRUE without keyCertSign accepted as a signing CA (temporary CA exemption)EPSS 0.2%CVE-2026-45574HIGHepa4all-client: TLS Certificate Validation Disabled in ProductionEPSS 0.2%CVE-2026-10098MEDIUMOCSP CertID serial-number length-confusion in wolfSSL_OCSP_resp_find_statusEPSS 0.2%CVE-2026-42312MEDIUMpyload-ng: non-admin SETTINGS users can disable outbound TLS peer verificationEPSS 0.2%CVE-2026-0872LOWImproper Certificate Validation vulnerability in Thales SafeNet Agent for Windows LogonEPSS 0.2%CVE-2024-33509MEDIUMAn improper certificate validation vulnerability [CWE-295] in FortiWeb 7.2.0 through 7.2.1, 7.0 all versions, 6.4 all versions and 6.3 all vEPSS 0.2%CVE-2026-29140HIGHS/MIME Signature Additional CertificateEPSS 0.2%CVE-2024-41724HIGHImproper Certificate Validation (CWE-295) in the Gallagher Command Centre SALTO integration allowed an attacker to spoof the SALTO server. EPSS 0.2%CVE-2026-2748HIGHS/MIME Certificate Subject WhitespaceEPSS 0.2%CVE-2024-38861MEDIUMLack of TLS validation in plugin MikroTik on Checkmk ExchangeEPSS 0.2%CVE-2024-43107HIGHImproper Certificate Validation (CWE-295) in the Gallagher Milestone Integration Plugin (MIP) permits unauthenticated messages (e.g. alarm eEPSS 0.2%CVE-2026-79690LOWDell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper CertificEPSS 0.2%CVE-2026-0248MEDIUMPrisma Access Agent: Improper Certificate Validation VulnerabilityEPSS 0.2%CVE-2026-79729LOWDell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper CertificEPSS 0.2%CVE-2026-79736LOWDell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper CertificEPSS 0.2%CVE-2025-33099MEDIUMIBM Concert Software information disclosureEPSS 0.2%