EUVD-2026-61571
GHSA-vr4j-v62x-r88q
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Network HTTP reach with low complexity and only a low-privilege account (PR:L), no user interaction, and a scope change that cascades full CIA impact to adjacent systems.
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. Easily exploitable 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 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).
AnalysisAI
Full compromise of Oracle Siebel CRM Integration (Open Integration component) is achievable by a low-privileged, network-based attacker over HTTP, with a scope change that lets attacks significantly impact additional products beyond the vulnerable component. Affected releases span 25.12 through 26.6, and Oracle rates it CVSS 3.1 9.9 with full confidentiality, integrity, and availability loss (component takeover). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reachability to the Siebel CRM Integration Open Integration HTTP interface plus a low-privileged authenticated Siebel account (CVSS PR:L - not fully unauthenticated), and the target must be running an affected release in the 25.12-26.6 range. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The signals here point to a genuine high priority rather than an inflated CVSS number: the vector AV:N/AC:L/PR:L/UI:N is trivially reachable (network HTTP, low complexity, only a low-privilege account, no user interaction), and the S:C scope change plus C:H/I:H/A:H means a single low-privileged foothold can cascade into adjacent trusted systems - Oracle explicitly notes attacks may significantly impact additional products. … 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 the fix delivered in Oracle's August 2026 Critical Patch Update (Patch available per vendor advisory: https://www.oracle.com/security-alerts/cspuaug2026.html); Oracle did not publish a single discrete fix version in the input data, so consult the CPU matrix for the exact patch level corresponding to your 25.12-26.6 release and apply it, as Oracle does not support partial fixes. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all Oracle Siebel CRM deployments running versions 25.12-26.6, identify which systems are network-accessible or connected to production environments, and contact Oracle Support immediately to confirm patch timeline and interim mitigation options. …
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External POC / Exploit Code
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