CVE-2026-91221

Status: Awaiting AnalysisCritical (10)—

Severity10Critical · CVSS 3.1

Exploitation probability0.52 %higher than 43% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

Vulnerability in the Oracle SOA Suite product of Oracle Fusion Middleware (component: Fabric Layer). 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 T3, IIOP to compromise Oracle SOA Suite. While the vulnerability is in Oracle SOA Suite, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle SOA Suite. CVSS 3.1 Base Score 10.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

CVSS

Base score: 10
Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.52 %
Percentile among all scored CVEs: 43
Score date: 10/21/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1190 Exploit Public-Facing Applicationinitial access90 %
Primary impactT1565 Data Manipulationimpact45 %
Secondary impactT1499 Endpoint Denial of Serviceimpact30 %

Vector AV:N/PR:N/UI:N y texto: atacante no autenticado por red vía T3/IIOP; el impacto explícito es takeover de SOA Suite con alto impacto en C, I y A.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Network Segmentation Filter Network Traffic Vulnerability Scanning Restrict File and Directory Permissions Privileged Account Management Remote Data Storage

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Oracle — SOA Suite^AI

References

Show 1 references

https://www.oracle.com/security-alerts/cpuoct2026.html

Raw JSON (NVD)

Show

{
  "id": "CVE-2026-91221",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "secalert_us@oracle.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 10,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "secalert_us@oracle.com",
      "affectedData": [
        {
          "vendor": "Oracle Corporation",
          "product": "Oracle SOA Suite",
          "versions": [
            {
              "status": "affected",
              "version": "12.2.1.4.0",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "14.1.2.0.0",
              "versionType": "semver"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-10-20T22:20:22.580",
  "references": [
    {
      "url": "https://www.oracle.com/security-alerts/cpuoct2026.html",
      "source": "secalert_us@oracle.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "descriptions": [
    {
      "lang": "en",
      "value": "Vulnerability in the Oracle SOA Suite product of Oracle Fusion Middleware (component: Fabric Layer).  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 T3, IIOP to compromise Oracle SOA Suite.  While the vulnerability is in Oracle SOA Suite, attacks may significantly impact additional products (scope change).  Successful attacks of this vulnerability can result in takeover of Oracle SOA Suite. CVSS 3.1 Base Score 10.0 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)."
    }
  ],
  "lastModified": "2026-10-21T18:44:40.020",
  "sourceIdentifier": "secalert_us@oracle.com"
}