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Siebel CrmApplication · Oracle

CVE-2026-46888

HIGH · 7.8 CVSS v3.1 Published 2026-06-17
Fix available
A fix is available. Upgrade to after 26.5 or later.
See remediation →
80/100
Remediation priority · High
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Database Upgrade). Supported versions that are affected are 17.0-26.5. Easily exploitable vulnerability allows low 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 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

A local privilege escalation vulnerability in the Siebel CRM Database Upgrade component (versions 17.0-26.5) allows a low-privileged attacker with local system access to execute arbitrary code with elevated privileges, leading to complete system takeover. The vulnerability has low attack complexity and requires no user interaction.

MitigationApply the Oracle Critical Patch Update addressing CVE-2026-46888 immediately. Restrict access to systems running Siebel CRM Deployment and the database upgrade infrastructure to essential personnel only.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Siebel CrmApplication
Affected:>= 17.0, <= 26.5

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify Siebel CRM installation
    Check for Oracle Siebel CRM installation directories or installed components on the system. Look for Siebel-related services, executables, or deployment directories.
    Affected if Siebel CRM is installed and the version falls within 17.0 to 26.5 inclusive
  2. Determine installed Siebel CRM version
    Locate and inspect the Siebel CRM version information, typically found in installation logs, registry entries, or version files within the Siebel deployment directory.
    Affected if The installed version is between 17.0 and 26.5 (inclusive)
  3. Confirm Database Upgrade component presence
    Identify whether the Siebel Database Upgrade component or related upgrade utilities are installed or configured on the system. Check for upgrade-related binaries, scripts, or configuration files.
    Affected if The Database Upgrade component is present on the system
  4. Assess local access controls
    Review local user accounts and group memberships to determine whether low-privileged users have local system access and can interact with Siebel components.
    Affected if Low-privileged local users have access to the Siebel CRM system and its upgrade infrastructure

If Siebel CRM versions 17.0-26.5 are installed with the Database Upgrade component present and low-privileged local users can access the system, the environment is affected by CVE-2026-46888.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 26.5
Interim mitigation

Apply the Oracle Critical Patch Update addressing CVE-2026-46888 immediately. Restrict access to systems running Siebel CRM Deployment and the database upgrade infrastructure to essential personnel only.

Recommended fix Moderate confidence

Oracle Siebel CRM version higher than 26.5 (contact Oracle for exact patched version via latest Critical Patch Update)

  1. 1. Identify the current Siebel CRM Deployment version by checking the Siebel Enterprise Server version
  2. 2. Check Oracle's official Critical Patch Update advisory for CVE-2026-46888 to obtain the specific patch number and instructions
  3. 3. Download and apply the latest Oracle Critical Patch Update that addresses this vulnerability
  4. 4. After patching, verify the Database Upgrade component is functioning correctly
  5. 5. Test that the improper access control vulnerability is remediated by confirming low-privileged users can no longer elevate privileges in the Database Upgrade component
Caveat Oracle Critical Patch Updates are cumulative; applying the patch may include other security and regression fixes that should be tested in a non-production environment first

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Siebel Crm Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-46888 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data