{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-21926",
        "assignerOrgId": "43595867-4340-4103-b7a2-9a5208d29a85",
        "state": "PUBLISHED",
        "assignerShortName": "oracle",
        "dateReserved": "2026-01-05T18:07:34.708Z",
        "datePublished": "2026-01-20T21:56:21.443Z",
        "dateUpdated": "2026-01-21T20:51:46.300Z"
    },
    "containers": {
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                "orgId": "43595867-4340-4103-b7a2-9a5208d29a85",
                "shortName": "oracle",
                "dateUpdated": "2026-01-20T21:56:21.443Z"
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                    "descriptions": [
                        {
                            "lang": "en-US",
                            "description": "Easily exploitable vulnerability allows unauthenticated attacker with network access via TLS to compromise Siebel CRM Deployment.  Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Siebel CRM Deployment."
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Oracle Corporation",
                    "product": "Siebel CRM Deployment",
                    "versions": [
                        {
                            "version": "17.0",
                            "status": "affected",
                            "lessThanOrEqual": "25.2",
                            "versionType": "custom"
                        }
                    ]
                }
            ],
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                                    "criteria": "cpe:2.3:a:oracle:siebel_crm_deployment:*:*:*:*:*:*:*:*",
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                                    "versionEndIncluding": "25.2"
                                }
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            "descriptions": [
                {
                    "lang": "en-US",
                    "value": "Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure).  Supported versions that are affected are 17.0-25.2. Easily exploitable vulnerability allows unauthenticated attacker with network access via TLS to compromise Siebel CRM Deployment.  Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Siebel CRM Deployment. CVSS 3.1 Base Score 7.5 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)."
                }
            ],
            "references": [
                {
                    "url": "https://www.oracle.com/security-alerts/cpujan2026.html",
                    "name": "Oracle Advisory",
                    "tags": [
                        "vendor-advisory"
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "availabilityImpact": "HIGH",
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                        "baseScore": 7.5,
                        "baseSeverity": "HIGH"
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            {
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                        "descriptions": [
                            {
                                "type": "CWE",
                                "lang": "en",
                                "description": "CWE-noinfo Not enough information"
                            }
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                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-01-21T20:51:28.697060Z",
                                "id": "CVE-2026-21926",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
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                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
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                "title": "CISA ADP Vulnrichment",
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                    "dateUpdated": "2026-01-21T20:51:46.300Z"
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}