CVE-2026-83426
HighCVSS 8.7Exploitation Probability (EPSS)
Low risk24th percentile - higher than 24% of all known CVEs
Summary
Vulnerability in Oracle Access Manager (Authentication Engine component) affecting versions 12.2.1.4.0 and 14.1.2.1.0. A difficult-to-exploit flaw allows an unauthenticated attacker with HTTP network access to create, delete or modify critical data and gain full access to Oracle Access Manager data.
Risk Assessment
Although difficult to exploit, the impact may extend beyond Oracle Access Manager to other products. An attacker could modify or delete critical data and gain full access to it.
Recommendation
Apply the Oracle security update for versions 12.2.1.4.0 and 14.1.2.1.0. It is also advisable to monitor unusual HTTP requests directed at the authentication engine.
Other vulnerabilities in Oracle Access Manager
See all- CVE-2015-2593High
Unspecified vulnerability in the Oracle Access Manager component in Oracle Fusion Middleware 11.1.2.2 allows remote authenticated users to affect confidentiality and integrity via unknown vectors related to Configuration Service.
- CVE-2015-0461High
Unspecified vulnerability in the Oracle Access Manager component in Oracle Fusion Middleware 11.1.1.5 and 11.1.1.7 allows remote authenticated users to affect confidentiality and integrity via unknown vectors related to Authentication Engine.
- CVE-2026-87337Critical
Vulnerability in Oracle Access Manager (Authentication Engine component) affecting versions 12.2.1.4.0 and 14.1.2.1.0. An unauthenticated attacker with network access via HTTP can create, delete, or modify critical data and gain full access to it, with potential impact on additional products.
- CVE-2026-87251Critical
Vulnerability in Oracle Access Manager (Authentication Engine component) affecting versions 12.2.1.4.0 and 14.1.2.1.0. An unauthenticated attacker with network access via SAML can take over Oracle Access Manager.
- CVE-2026-83001Critical
Vulnerability in Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Affects versions 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable, allows high privileged attacker via HTTP to take over the product, with impact on other products (scope change). CVSS 9.1.
- CVE-2026-73962Critical
Vulnerability in Oracle Access Manager (Authentication Engine component) affecting versions 12.2.1.4.0 and 14.1.2.1.0. A low-privileged attacker with network access via HTTPS can easily exploit it, potentially impacting additional products (scope change). It results in unauthorized access, creation, deletion, or modification of critical data. CVSS 3.1 Base Score: 9.6.
- CVE-2026-73950Critical
Vulnerability in Oracle Access Manager (Authentication Engine component) affecting versions 12.2.1.4.0 and 14.1.2.1.0. An unauthenticated attacker with network access via HTTP can easily exploit it to take over Oracle Access Manager. CVSS 3.1 Base Score: 9.8.
- CVE-2026-73947Critical
Vulnerability in Oracle Access Manager (Authentication Engine component) affecting versions 12.2.1.4.0 and 14.1.2.0.0. An unauthenticated attacker with network access via HTTP can easily exploit it to take over Oracle Access Manager. CVSS 3.1 Base Score: 9.8.
- CVE-2026-73946Critical
Vulnerability in Oracle Access Manager (Authentication Engine component) affecting versions 12.2.1.4.0 and 14.1.2.1.0. A high-privileged authenticated attacker with network access via HTTP can compromise Oracle Access Manager, and the attack may significantly impact additional products (scope change).
- CVE-2026-73945Critical
Vulnerability in Oracle Access Manager (Authentication Engine component) affecting versions 12.2.1.4.0 and 14.1.2.1.0. A low-privileged attacker with network access via HTTP can compromise Oracle Access Manager, and the attack may significantly impact additional products (scope change).
Original NVD description (English source)
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. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Access Manager. While the vulnerability is in Oracle Access Manager, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Access Manager accessible data as well as unauthorized access to critical data or complete access to all Oracle Access Manager accessible data. CVSS 3.1 Base Score 8.7 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS