Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
-
AccessObtain high-privileged logon to Siebel host
-
DeliveryAccess Server Infrastructure component
-
ExploitAbuse deployment flaw
-
ExecutionTake over Siebel CRM Deployment
-
ImpactFull compromise of confidentiality, integrity and availability
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V8 - Authorization Least privilege enforcement
MITRE ATT&CK
1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires the attacker to already have high-privileged (administrative/operator-level) logon access to the specific host where the Siebel CRM Deployment / Server Infrastructure component executes - it is not reachable over the network and not exploitable by unauthenticated or low-privileged users. The affected feature is the Server Infrastructure component of Siebel CRM Deployment on supported versions 17.0 through 26.9. Limiting factors: local attack vector (AV:L) and PR:H mean a prior privileged foothold on the server is mandatory, no user interaction is involved (UI:N), and scope is unchanged (S:U), so the compromise is confined to the Siebel CRM Deployment itself. |
| Impact | This is a moderate-priority, high-CVSS-but-constrained-real-risk issue. The CVSS 3.1 vector (AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H, base 6.7) shows the severity is driven entirely by total technical impact (full confidentiality, integrity and availability loss - 'takeover of Siebel CRM Deployment'), while the attack feasibility is heavily gated: local attack vector (AV:L) requires the attacker to already have logon access to the host where Siebel CRM Deployment executes, and PR:H means they must already hold high/administrative privileges. In practice this means an already-privileged insider or an attacker who has first gained a privileged foothold can escalate to full compromise of the deployment component. No EPSS score, CISA KEV listing, SSVC decision data, or POC was provided in the input, so exploitation probability cannot be quantified and there is no public exploit identified at time of analysis. The signals are internally consistent (vector matches the description's 'high privileged attacker with logon'), so there is no AV:N-vs-local conflict here - the limiting factor is genuine: prior privileged local access is a hard prerequisite, which substantially lowers real-world urgency relative to the 6.7 score for internet-exposed, unauthenticated threat models. |
| Exploit ScenarioDerived | An attacker who already has high-privileged logon access to the server hosting Siebel CRM Deployment (for example a malicious administrator or an actor who has compromised a privileged operator account) abuses the Server Infrastructure component to take full control of the Siebel CRM Deployment, gaining complete read, modify and destroy capability. No public exploit code has been identified at time of analysis, and because the attack vector is local and requires high privileges, there is no remote or unauthenticated path. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Oct 21, 2026
Local privilege escalation in the Server Infrastructure component of Oracle Siebel CRM Deployment (supported versions 17.0 through 26.9) lets an attacker who already holds high-privileged logon access on the deployment host take over the Siebel CRM Deployment instance, with full confidentiality, integrity, and availability impact confined to that component. The attack is local (AV:L), requires high privileges (PR:H), and needs no user interaction. No public exploit code or confirmed active exploitation was identified at time of analysis, and the CVSS 3.1 base score of 6.7 reflects a moderate-priority issue whose real-world risk is strongly constrained by the mandatory prior privileged foothold on the server.
RemediationAI
Apply the fix from Oracle's October 2026 Critical Patch Update (https://www.oracle.com/security-alerts/cpuoct2026.html); the advisory identifies the corrected release level for each supported Siebel CRM Deployment version, and because the exact patch version is not given in the supplied intelligence it should be read directly from that advisory rather than assumed. Until patching is complete, compensating controls must focus on the mandatory precondition: restrict and audit who holds high-privileged logon access to Siebel Deployment hosts, enforce least privilege and separation of duties for operator/administrator accounts, remove unnecessary local admin rights, and log privileged local sessions (trade-off: tighter account governance can slow legitimate deployment and maintenance work). Additionally, harden the deployment hosts themselves (host firewalls, EDR, restricted interactive logon rights, monitored sudo/administrative tooling) since the vector is local only, and rotate credentials for any account suspected of exposure. Monitor for unexpected changes to Siebel Deployment configuration or service state, which would indicate post-exploitation activity. No vendor workaround beyond patching is documented in the available references.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
The flaw resides in Oracle Siebel CRM Deployment's Server Infrastructure component, the layer responsible for deployment/configuration services that run with elevated OS-level rights on the Siebel host. Because the CVSS vector is AV:L/AC:L/PR:H/UI:N/S:U, the weakness is only reachable from the local host, is straightforward to trigger once an operator or administrator account is present, and yields full C/I/A impact but does not cross a scope boundary in CVSS terms (remaining within the Siebel CRM Deployment context). No CWE was assigned in the available data, so the precise root-cause class (for example improper privilege or access-control handling during deployment operations) is not publicly classified; Oracle's October 2026 Critical Patch Update advisory is the authoritative source. The practical implication is that this is a post-compromise or insider-oriented escalation surface: it does not create an initial access path, but it can convert an existing highly privileged local session into complete control of the Siebel Deployment service.
Know when the next one hits your stack
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Description states local logon with high privileges required (AV:L, PR:H), low complexity and no user interaction, yielding full C/I/A takeover of an unchanged-scope component.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
DescriptionCVE.org
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.9. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Siebel CRM Deployment executes to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in takeover of Siebel CRM Deployment. CVSS 3.1 Base Score 6.7 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.
EUVD-2026-106696
GHSA-rvc5-p439-7pfq
NVD
CVE.org
EPSS
VulDB
Exploit-DB