CVE-2026-46921
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 · uneditedVulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager). Supported versions that are affected are 17.0-26.5. 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 takeover of Siebel CRM Cloud Applications. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/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 confidenceUnspecified vulnerability in Oracle Siebel CRM Cloud Applications Siebel Cloud Manager component allows low-privileged attackers with network access via HTTP to achieve complete takeover of the Siebel CRM application. The CVSS 3.1 score of 8.8 reflects high impacts across confidentiality, integrity, and availability with low attack complexity.
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>= 17.0, <= 26.5CVSS 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
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/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 checksWork through these to decide whether this CVE applies to you.
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Identify Siebel Cloud Manager installationReview your Oracle Siebel CRM deployment documentation, cloud console, or installed software inventory to confirm whether the Siebel Cloud Manager component is deployed in your environment.Affected if Siebel Cloud Manager is present in the environment
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Check Siebel Cloud Manager versionAccess the Siebel Cloud Manager admin console or check the version information through the Siebel application management interface. The version is typically displayed in the About or System Information section of the Siebel Cloud Manager admin portal.Affected if The installed version falls within the range >= 17.0 and <= 26.5
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Verify network accessibility of Siebel Cloud ManagerDetermine if the Siebel Cloud Manager HTTP endpoints are exposed to network access. Check firewall rules, load balancer configurations, or API gateway settings to identify whether the management interface is reachable from network locations.Affected if Siebel Cloud Manager HTTP endpoints are accessible from untrusted or external network segments
Your environment is affected if Siebel Cloud Manager version 17.0 through 26.5 is installed AND the HTTP interface is reachable from network locations accessible to low-privileged attackers.
Generated from the published advisory. Verify against your own configuration.
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.
From vendor dataApply the Oracle Critical Patch Update addressing CVE-2026-46921 for Siebel CRM versions 17.0-26.5. As an immediate compensating control, restrict network access to Siebel Cloud Manager to trusted IP addresses and implement WAF rules for the HTTP endpoints.
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-46921 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-46921 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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