EUVD-2026-61573
GHSA-m953-5qcv-g7p8
Severity by source
AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Network vector and low privilege reflect HTTP access requiring a valid account; high complexity and scope change align with the integration component's trust-boundary-crossing role and non-trivial exploitation prerequisites.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.org
Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: Open Integration). Supported versions that are affected are 25.12-26.6. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Siebel CRM Integration. While the vulnerability is in Siebel CRM Integration, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Siebel CRM Integration. CVSS 3.1 Base Score 8.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H).
AnalysisAI
Siebel CRM Integration versions 25.12 through 26.6 expose a network-exploitable flaw in the Open Integration component that permits a low-privileged attacker to achieve full system takeover via crafted HTTP requests under high-complexity conditions. The CVSS 3.1 score of 8.5 reflects a scope change (S:C) alongside full confidentiality, integrity, and availability impact, meaning successful exploitation can cascade to other Oracle and third-party systems connected through the integration layer. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid low-privilege account with HTTP network access to the Siebel CRM Integration Open Integration component, as reflected by CVSS PR:L and AV:N. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 8.5 is primarily driven by the scope change and full C/I/A impact, though the high attack complexity (AC:H) and low-privilege prerequisite (PR:L) meaningfully constrain opportunistic exploitation in practice. … 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 Security Patch Update, available at https://www.oracle.com/security-alerts/cspuaug2026.html, which addresses this vulnerability in Siebel CRM Integration. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Siebel CRM Integration deployments to identify systems running versions 25.12 through 26.6 and implement enhanced network monitoring and access restrictions on affected instances to detect and block exploitation attempts. …
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Same weakness CWE-284 – Improper Access Control
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External POC / Exploit Code
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