cve-2026-83409

HIGH CVSS 8.1 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 14.1.2.0.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via SAML to compromise Oracle Access Manager. Successful attacks of this vulnerability can result in takeover of Oracle Access Manager. CVSS 3.1 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

Timeline
Published
2026-10-20
Last Modified
2026-10-27
CVSS Details
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
Affected Products

No product information available.

Weaknesses (CWE)
CWE-287
CVSS metrics
Version Base Severity Vector Exploitability Impact Source
3.1 8.1 HIGH CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H 2.2 5.9 secalert_us@oracle.com
NVD metadata
NVD status
Awaiting Analysis
Source identifier
secalert_us@oracle.com
References
Linked Vulnerabilities
cpuoct2026csaf csaf_oracle 

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  "datePublished": "2026-10-20T22:19:57.353",
  "dateUpdated": "2026-10-27T19:17:30.540",
  "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. Difficult to exploit vulnerability allows unauthenticated attacker with network access via SAML to compromise Oracle Access Manager.  Successful attacks of this vulnerability can result in takeover of Oracle Access Manager. CVSS 3.1 Base Score 8.1 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).",
  "id": "CVE-2026-83409",
  "raw": {
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      }
    ],
    "id": "CVE-2026-83409",
    "lastModified": "2026-10-27T19:17:30.540",
    "metrics": {
      "cvssMetricV31": [
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          "cvssData": {
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            "attackVector": "NETWORK",
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            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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          "exploitabilityScore": 2.2,
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          "source": "secalert_us@oracle.com",
          "type": "Secondary"
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      "ssvcV203": [
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          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-83409",
            "options": [
              {
                "exploitation": "none"
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              {
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              {
                "technicalImpact": "total"
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            "role": "CISA Coordinator",
            "timestamp": "2026-10-27T18:46:53.457532Z",
            "version": "2.0.3"
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    "published": "2026-10-20T22:19:57.353",
    "references": [
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        "source": "secalert_us@oracle.com",
        "url": "https://www.oracle.com/security-alerts/cpuoct2026.html"
      }
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    "sourceIdentifier": "secalert_us@oracle.com",
    "vulnStatus": "Awaiting Analysis",
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  "title": "Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine)"
}
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