CyberSecBulletin

Improper Authentication

CWE-287

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

We track 1,836 vulnerabilities of this type. 100% are rated high or critical, and the average CVSS score is 8.7. 52 have been exploited in real attacks.

How this weakness is prevented

  • Architecture and Design: Use an authentication framework or library such as the OWASP ESAPI Authentication feature.

Latest Improper Authentication vulnerabilities

  • 9.8 Critical severity

    Oracle Data Integrator: Improper Authentication

    CVE-2026-83232Oracle

    Vulnerability in the Oracle Data Integrator product of Oracle Fusion Middleware (component: Console / Repository Explorer). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker wit

  • 9.1 Critical severity

    Siebel CRM Deployment: Improper Authentication

    CVE-2026-83202Oracle

    Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.7. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to com

  • 9.1 Critical severity

    Siebel CRM Deployment: Improper Authentication

    CVE-2026-83201Oracle

    Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.7. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to com

  • 9.1 Critical severity

    Siebel CRM End User: Improper Authentication

    CVE-2026-83154Oracle

    Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Open UI). Supported versions that are affected are 17.0-26.7. Easily exploitable vulnerability allows unauthenticated attacker with network access via SOAP to compromise Siebel C

  • 9.8 Critical severity

    Service Delivery Platform: Improper Authentication

    CVE-2026-83151Oracle

    Vulnerability in the Service Delivery Platform product of Oracle Fusion Middleware (component: Messaging Enabler). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network

  • 9.8 Critical severity

    Oracle Forms: Improper Authentication

    CVE-2026-83108Oracle

    Vulnerability in the Oracle Forms product of Oracle Fusion Middleware (component: Forms Services, C/S, Charmode). Supported versions that are affected are 12.2.1.19.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network

  • 9.1 Critical severity

    Oracle Forms: Improper Authentication

    CVE-2026-83104Oracle

    Vulnerability in the Oracle Forms product of Oracle Fusion Middleware (component: Forms Services, C/S, Charmode). Supported versions that are affected are 12.2.1.19.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network

  • 9.8 Critical severity

    Oracle Forms: Improper Authentication

    CVE-2026-83100Oracle

    Vulnerability in the Oracle Forms product of Oracle Fusion Middleware (component: Forms Services, C/S, Charmode). Supported versions that are affected are 12.2.1.19.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network

  • 10.0 Critical severity

    Oracle Forms: Improper Authentication

    CVE-2026-83099Oracle

    Vulnerability in the Oracle Forms product of Oracle Fusion Middleware (component: Forms Services, C/S, Charmode). Supported versions that are affected are 12.2.1.19.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network

  • 9.8 Critical severity

    Oracle Forms: Improper Authentication

    CVE-2026-83098Oracle

    Vulnerability in the Oracle Forms product of Oracle Fusion Middleware (component: Forms Services, C/S, Charmode). Supported versions that are affected are 12.2.1.19.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network

  • 9.8 Critical severity

    Oracle Forms: Improper Authentication

    CVE-2026-83095Oracle

    Vulnerability in the Oracle Forms product of Oracle Fusion Middleware (component: Forms Services, C/S, Charmode). Supported versions that are affected are 12.2.1.19.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network

  • 9.8 Critical severity

    Oracle Forms: Improper Authentication

    CVE-2026-83094Oracle

    Vulnerability in the Oracle Forms product of Oracle Fusion Middleware (component: Forms Services, C/S, Charmode). Supported versions that are affected are 12.2.1.19.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network

  • 9.8 Critical severity

    Oracle Internet Directory: Improper Authentication

    CVE-2026-83066Oracle

    Vulnerability in the Oracle Internet Directory product of Oracle Fusion Middleware (component: OID LDAP Server). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network a

  • 9.8 Critical severity

    Oracle Internet Directory: Improper Authentication

    CVE-2026-83062Oracle

    Vulnerability in the Oracle Internet Directory product of Oracle Fusion Middleware (component: OID LDAP Server). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network a

  • 9.8 Critical severity

    Oracle Internet Directory: Improper Authentication

    CVE-2026-83061Oracle

    Vulnerability in the Oracle Internet Directory product of Oracle Fusion Middleware (component: OID LDAP Server). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network a

  • 9.8 Critical severity

    Oracle Internet Directory: Improper Authentication

    CVE-2026-83060Oracle

    Vulnerability in the Oracle Internet Directory product of Oracle Fusion Middleware (component: OID LDAP Server). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network a

  • 10.0 Critical severity

    Oracle Internet Directory: Improper Authentication

    CVE-2026-83059Oracle

    Vulnerability in the Oracle Internet Directory product of Oracle Fusion Middleware (component: OID LDAP Server). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network a

  • 9.8 Critical severity

    Oracle Internet Directory: Improper Authentication

    CVE-2026-83054Oracle

    Vulnerability in the Oracle Internet Directory product of Oracle Fusion Middleware (component: OID LDAP Server). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network a

  • 9.8 Critical severity

    Oracle Identity Manager: Improper Authentication

    CVE-2026-83042Oracle

    Vulnerability in the Oracle Identity Manager product of Oracle Fusion Middleware (component: OIM Legacy UI). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network acces

  • 9.8 Critical severity

    Oracle WebCenter Sites: Improper Authentication

    CVE-2026-83037Oracle

    Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network acce

  • 9.8 Critical severity

    Oracle WebCenter Sites: Improper Authentication

    CVE-2026-83036Oracle

    Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network acce

  • 9.8 Critical severity

    Oracle WebCenter Sites: Improper Authentication

    CVE-2026-83035Oracle

    Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network acce

  • 10.0 Critical severity

    Oracle WebLogic Server: Improper Authentication

    CVE-2026-83021Oracle

    Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Web Container). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with ne

  • 10.0 Critical severity

    Oracle Platform Security for Java: Improper Authentication

    CVE-2026-83020Oracle

    Vulnerability in the Oracle Platform Security for Java product of Oracle Fusion Middleware (component: Centralized Thirdparty Jars). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated att

  • 9.8 Critical severity

    Service Delivery Platform: Improper Authentication

    CVE-2026-83000Oracle

    Vulnerability in the Service Delivery Platform product of Oracle Fusion Middleware (component: Messaging Enabler). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network

  • 9.8 Critical severity

    Oracle Platform Security for Java: Improper Authentication

    CVE-2026-82995Oracle

    Vulnerability in the Oracle Platform Security for Java product of Oracle Fusion Middleware (component: Centralized Thirdparty Jars). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated att

  • 9.8 Critical severity

    Oracle Platform Security for Java: Improper Authentication

    CVE-2026-82994Oracle

    Vulnerability in the Oracle Platform Security for Java product of Oracle Fusion Middleware (component: Centralized Thirdparty Jars). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated att

  • 7.5 High severity

    EdgeConnect SD-WAN Gateways: Improper Authentication

    CVE-2026-76688Hewlett Packard Enterprise

    Vulnerabilities have been identified in the web-based management interface of EdgeConnect SD-WAN Orchestrator that could potentially allow an unauthenticated remote actor to circumvent existing authentication controls. Successful exploitation could allow an at

  • 8.1 High severity

    EdgeConnect SD-WAN Gateways: Improper Authentication

    CVE-2026-76684Hewlett Packard Enterprise

    Vulnerabilities have been identified in the API of HPE Networking EdgeConnect SD-WAN Orchestrator that could potentially allow an unauthenticated remote actor to circumvent existing authentication controls. Successful exploitation could allow an attacker to ga

  • 9.8 Critical severity

    EdgeConnect SD-WAN Gateways: Improper Authentication

    CVE-2026-76673Hewlett Packard Enterprise

    Vulnerabilities have been identified in the API of EdgeConnect SD-WAN Orchestrator that could potentially allow an unauthenticated remote actor to circumvent existing authentication controls. Successful exploitation could allow an attacker to gain administrati

  • 9.8 Critical severity

    Oracle WebCenter Portal: Improper Authentication

    CVE-2026-73963Oracle

    Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Portlet Services). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network ac

  • 9.8 Critical severity

    Oracle JDeveloper: Improper Authentication

    CVE-2026-73961Oracle

    Vulnerability in the Oracle JDeveloper product of Oracle Fusion Middleware (component: ADF Faces). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP

  • 9.8 Critical severity

    Oracle WebCenter Portal: Improper Authentication

    CVE-2026-73956Oracle

    Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Composer). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via

  • 9.8 Critical severity

    Oracle WebCenter Portal: Improper Authentication

    CVE-2026-73953Oracle

    Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Portlet Services). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network ac

  • 9.1 Critical severity

    Oracle WebCenter Portal: Improper Authentication

    CVE-2026-73952Oracle

    Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Portlet Services). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network ac

  • 9.8 Critical severity

    Oracle Access Manager: Improper Authentication

    CVE-2026-73950Oracle

    Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network

  • 9.8 Critical severity

    Oracle Access Manager: Improper Authentication

    CVE-2026-73947Oracle

    Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network

  • 9.1 Critical severity

    Oracle Access Manager: Improper Authentication

    CVE-2026-73944Oracle

    Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network

  • 9.8 Critical severity

    Oracle Access Manager: Improper Authentication

    CVE-2026-73940Oracle

    Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network

  • 10.0 Critical severity

    Oracle Access Manager: Improper Authentication

    CVE-2026-71133Oracle

    Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network