EUVD-2026-61371
GHSA-5rjg-qx8p-vqw3
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Low-privileged HTTP attacker with no interaction needed; no availability impact described; no scope change to adjacent systems.
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 low privileged attacker with network access via HTTP 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:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).
AnalysisAI
Unauthorized data access and manipulation in Oracle Siebel CRM Cloud Applications (versions 22.3-26.6) is achievable by low-privileged, network-connected attackers via HTTP against the Siebel Cloud Manager component. Successful exploitation grants complete read access to all CRM data and the ability to create, delete, or modify critical records, with no availability disruption to the service itself. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires possession of a valid low-privileged account within the Siebel CRM Cloud Applications environment (PR:L per CVSS vector) and network-level HTTP access to the Siebel Cloud Manager component. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 8.1 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N) reflects a serious but not maximally-rated vulnerability: exploitation requires a low-privileged credential (PR:L), which prevents fully unauthenticated mass exploitation but represents a realistic threat from insider actors, compromised service accounts, or phishing victims. … 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 Critical Patch Update for August 2026, published at https://www.oracle.com/security-alerts/cspuaug2026.html, which addresses CVE-2026-61321 in Siebel CRM Cloud Applications. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Siebel Cloud instances running versions 22.3-26.6 and audit which user accounts hold Cloud Manager privileges; review access logs from the past 30 days for unauthorized data reads or bulk exports. …
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Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
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External POC / Exploit Code
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