CVE-2026-83407

Oracle Access Manager Authentication Engine Remote Bypass Allowing Unauthorized Access and Partial Denial

Published Oct 20, 2026 CVSS 3.1 · 8.6 High EPSS < 1% KEV · Not listed
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 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Access Manager. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Access Manager accessible data as well as unauthorized update, insert or delete access to some of Oracle Access Manager accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Access Manager. CVSS 3.1 Base Score 8.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L).

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Oracle Access Manager Authentication Engine Remote Bypass Allowing Unauthorized Access and Partial Denial
Weaknesses CWE-284
CWE-287
Type Values Removed Values Added
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 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Access Manager. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Access Manager accessible data as well as unauthorized update, insert or delete access to some of Oracle Access Manager accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Access Manager. CVSS 3.1 Base Score 8.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L).
First Time appeared Oracle
Oracle access Manager
CPEs cpe:2.3:a:oracle:access_manager:12.2.1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:access_manager:14.1.2.0.0:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle access Manager
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
oracle
Published
Updated
Oct 27, 2026, 6:45 PM
Reserved
Aug 31, 2026, 3:40 PM
Status
Awaiting Analysis
Published
Oct 20, 2026, 10:19 PM
Modified
Oct 27, 2026, 7:17 PM