CVE-2026-73940

Analyzed Analyzed - Analysis Complete

Authentication Bypass in Oracle Access Manager

Publication date: 2026-09-15

Last updated on: 2026-09-21

Assigner: Oracle

Description

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 access via T3, IIOP to compromise Oracle Access Manager. Successful attacks of this vulnerability can result in takeover of Oracle Access Manager. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-15

Last Modified

2026-09-21

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-73940

EUVD

EUVD-2026-79519

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	access_manager	12.2.1.4.0
oracle	access_manager	14.1.2.1.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-287	When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
CWE-306	The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Attack-Flow Graph

Executive Summary

This is a critical vulnerability in Oracle Access Manager, a middleware product for authentication. It allows an unauthenticated attacker to remotely compromise the system via network protocols like T3 or IIOP. Successful exploitation could lead to full takeover of the Oracle Access Manager instance.

Detection Guidance

Detection requires checking for Oracle Access Manager versions 12.2.1.4.0 or 14.1.2.1.0. Monitor network traffic for T3 or IIOP protocol usage targeting Oracle Access Manager. Inspect logs for unusual authentication attempts or unauthorized access patterns.

Impact Analysis

If you use Oracle Access Manager versions 12.2.1.4.0 or 14.1.2.1.0, an attacker could gain complete control over your authentication system. This could allow unauthorized access to sensitive data, modification of system configurations, or disruption of services.

Compliance Impact

This vulnerability could lead to unauthorized access or disclosure of personal or health data, violating GDPR or HIPAA requirements. Organizations using affected versions may face compliance violations, legal penalties, or reputational damage due to compromised data integrity and confidentiality.

Mitigation Strategies

Apply the latest Oracle Access Manager patches immediately. Restrict network access to T3 and IIOP ports for Oracle Access Manager. Disable unnecessary services and enforce strong authentication mechanisms. Monitor for suspicious activity.

Hi! I’m here to help you understand CVE-2026-73940. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70