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Vulnerability record · CVE-2026-71163 · published 15 September 2026

CVE-2026-71163: Oracle access manager improper access control vulnerability

Oracle · Access Manager

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 low privileged 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 and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Access Manager. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L).

9.9 CVSS 3.1 Critical EPSS 0.39% · top 69.9% CWE-284 · Improper access control
9.9CVSS 3.1 base score
0.39%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
21 Sep 2026Last modified by NVD

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 low privileged 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 and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Access Manager. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L).

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.oracle.com/security-alerts/cspusep2026.html Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2021-35587Oracle Access Manager OpenSSO Agent missing authentication allows takeoverOracle Access Manager (Fusion Middleware) contains a missing-authentication flaw in the OpenSSO Agent component affecting versions 11.1.2.3.0, 12.2.1…KEVEPSS 96%analysed9.8CVE-2020-2555Oracle Coherence T3 deserialization allows unauthenticated remote code executionOracle Coherence (Fusion Middleware) deserializes untrusted data reachable over the T3 protocol, allowing an unauthenticated network attacker to exec…KEVEPSS 97%analysed10.0CVE-2026-71133Oracle access manager improper authentication vulnerabilityVulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Supported versions that are affect…EPSS 0.51%10.0CVE-2026-60358Oracle access manager improper access control vulnerabilityVulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Supported versions that are affect…EPSS 0.51%9.9CVE-2026-73945Oracle access manager improper access control vulnerabilityVulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Supported versions that are affect…EPSS 0.43%9.9CVE-2026-60333Oracle access manager improper authentication vulnerabilityVulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Supported versions that are affect…EPSS 0.43%9.9CVE-2026-35313Oracle access manager improper access control vulnerabilityVulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Supported versions that are affect…EPSS 0.43%9.8CVE-2026-73950Oracle access manager improper authentication vulnerabilityVulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Supported versions that are affect…EPSS 0.51%

Source: NIST National Vulnerability Database (record CVE-2026-71163), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.