EUVD-2026-61381
GHSA-qv5v-w2hv-vh98
Severity by source
AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Adjacent-network vector confirmed by description; PR:N reflects authentication bypass; no availability impact per description scope.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.org
Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager). Supported versions that are affected are 22.3-26.6. Easily exploitable vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the Siebel CRM Cloud Applications executes to compromise Siebel CRM Cloud Applications. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Siebel CRM Cloud Applications accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM Cloud Applications accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
AnalysisAI
Unauthenticated adjacent-network exploitation of Oracle Siebel CRM Cloud Applications (versions 22.3 through 26.6) via the Siebel Cloud Manager component allows complete read and write access to all CRM data without credentials. The CVSS vector (AV:A/AC:L/PR:N/UI:N) confirms low-complexity, zero-authentication exploitation, constrained only by the requirement for physical or logical adjacency to the target network segment. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the attacker be located on the physical or logical communication segment directly attached to the hardware executing Siebel CRM Cloud Applications - for example, the same LAN, VLAN, cloud virtual network, or subnet. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 8.1 appropriately reflects the severity of an unauthenticated, low-complexity attack yielding full data access, but the AV:A constraint is the single most important risk-reduction factor: exploitation requires physical or logical adjacency to the network segment hosting the Siebel application, which limits exposure to internal threat actors, co-tenants in shared cloud environments, or attackers who have already achieved a foothold on an adjacent network segment. … 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 | The primary remediation is to apply Oracle's Critical Patch Update released in August 2026, available via the Oracle advisory 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 deployments running versions 22.3-26.6 in production and inventory which have Cloud Manager exposed to non-production networks (VPN, partner connections, development segments). …
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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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