EUVD-2026-61577
GHSA-66v8-x3rr-hpwx
Severity by source
AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:H
Network HTTP access required but PR:H and AC:H reflect admin credential and complexity gates; S:C and no confidentiality impact match description exactly.
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 high 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 unauthorized creation, deletion or modification access to critical data or all Siebel CRM Integration accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Siebel CRM Integration. CVSS 3.1 Base Score 7.7 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:H).
AnalysisAI
Integrity and availability compromise in Oracle Siebel CRM Integration's Open Integration component (versions 25.12 through 26.6) allows a high-privileged remote attacker over HTTP to corrupt or destroy critical data and trigger a complete denial of service, with confirmed scope change meaning successful exploitation may cascade into additional integrated downstream products. The attack requires high complexity and pre-existing administrative privileges, limiting opportunistic exploitation, but the cross-system blast radius elevates overall business risk. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to already possess high-privileged (administrative) credentials with network access to the target Siebel CRM Integration instance via HTTP - PR:H in the CVSS vector confirms this authentication gate. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.7 base score reflects high integrity and availability impact combined with a scope change, but the actual exploitability is substantially constrained by two compounding factors: high attack complexity (AC:H) and high privileges required (PR:H), meaning an attacker must already possess administrative-level credentials within the target Siebel deployment and must satisfy additional technical preconditions to trigger the vulnerability. … 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 (CPU) for August 2026, which addresses this vulnerability for affected Siebel CRM Integration versions 25.12 through 26.6; the advisory is published at https://www.oracle.com/security-alerts/cspuaug2026.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all systems running Oracle Siebel CRM versions 25.12 through 26.6 and document integration dependencies; assess current administrative access controls and identify high-privileged users. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
More in Siebel Crm
View allPrivilege-based takeover of Oracle Siebel CRM Cloud Applications (versions 22.3 through 26.6) is possible via the Siebel
Full compromise of Oracle Siebel CRM Integration (Open Integration component) is achievable by a low-privileged, network
Privilege escalation to full takeover in Oracle Siebel CRM Cloud Applications (Siebel Cloud Manager component, versions
Unauthenticated remote compromise of Oracle Siebel CRM Cloud Applications (versions 22.3 through 26.6) is possible throu
Full application takeover in Oracle Siebel CRM Cloud Applications (Siebel Cloud Manager component), versions 22.3 throug
Full compromise of Oracle Siebel CRM Integration (Open Integration component) is possible by an unauthenticated remote a
Remote takeover of Oracle Siebel CRM Administration is possible via its Data Archival component, where an unauthenticate
Full system takeover in Oracle Siebel CRM Deployment's Server Infrastructure component is achievable by any low-privileg
Full application takeover in Oracle Siebel CRM Cloud Applications (versions 22.3-26.6) is achievable by any low-privileg
Siebel Cloud Manager in Oracle Siebel CRM Cloud Applications exposes a network-accessible, low-complexity attack path th
Full system takeover is achievable in Oracle Siebel CRM End User versions 17.0 through 26.6 via the Document Management
High-privileged remote exploitation of Oracle Siebel CRM Cloud Applications (versions 22.3 through 26.6) via the Siebel
Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today