EUVD-2026-61426
GHSA-fq5q-95vr-qp7x
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Consistent with official vector: REST API is network-reachable with no auth required, high complexity for exploitation, and no availability impact per the CVE description.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.org
Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: REST). Supported versions that are affected are 17.0-26.6. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Siebel CRM Integration. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Siebel CRM Integration accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM Integration accessible data. CVSS 3.1 Base Score 7.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N).
AnalysisAI
Remote authentication bypass in Oracle Siebel CRM Integration's REST component affects all supported versions from 17.0 through 26.6, enabling unauthenticated network attackers to achieve full read and write access to critical CRM data via crafted HTTPS requests. The vulnerability is tagged Authentication Bypass, indicating that REST API access controls can be circumvented without credentials despite a high attack complexity (AC:H) rating that suggests exploitation requires precise crafting or internal state knowledge. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Network access via HTTPS to the Siebel CRM Integration REST API endpoint is required. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The 7.4 CVSS base score reflects a genuinely high-severity issue: unauthenticated network access (AV:N, PR:N) paired with full confidentiality and integrity impact (C:H, I:H) and no availability impact (A:N). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply Oracle's August 2026 Critical Patch Update, available via the official security alert at https://www.oracle.com/security-alerts/cspuaug2026.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Siebel CRM systems running versions 17.0-26.6 and determine which have REST API components exposed to network traffic; document which contain sensitive or customer data. …
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Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
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