CVE-2026-47032 Overview
CVE-2026-47032 is a low-severity vulnerability in the Siebel CRM End User product of Oracle Siebel CRM, specifically within the Redwood UI component. Supported versions 24.4 through 26.3 are affected. The flaw permits a high-privileged attacker with network access via HTTP to trigger a partial denial of service against Siebel CRM End User. Successful exploitation requires user interaction from a person other than the attacker. The vulnerability is classified under [CWE-284] Improper Access Control and carries a scope change, meaning impact can extend to additional components beyond Siebel CRM End User.
Critical Impact
Successful exploitation results in a partial denial of service against Siebel CRM End User, with potential scope-change impact on additional components.
Affected Products
- Oracle Siebel CRM End User (Redwood UI component), version 24.4
- Oracle Siebel CRM End User (Redwood UI component), versions 25.x through 26.2
- Oracle Siebel CRM End User (Redwood UI component), version 26.3
Discovery Timeline
- 2026-07-21 - Oracle publishes the vulnerability as part of the July 2026 Critical Patch Update
- 2026-07-21 - CVE-2026-47032 published to NVD
- 2026-07-23 - Last updated in NVD database
Technical Details for CVE-2026-47032
Vulnerability Analysis
The vulnerability resides in the Redwood UI component of Oracle Siebel CRM End User. It is categorized as an Improper Access Control issue [CWE-284], where authorization boundaries within the UI component are not enforced correctly under specific conditions. An attacker must already hold high privileges within the Siebel environment and must convince another user to interact with attacker-influenced content over HTTP.
Exploitation complexity is high. The attacker cannot succeed through direct action alone and must chain privileged access with a social engineering step. When conditions align, the flaw yields a partial availability impact against the Siebel CRM End User service. The scope change indicated by the CVSS vector signals that consequences may propagate to security-adjacent components that trust the vulnerable UI context.
Root Cause
The root cause is improper access control [CWE-284] within the Redwood UI component. Access decisions inside the UI flow fail to fully constrain what a privileged, authenticated actor can influence when a second user interacts with the interface. This creates a code path where availability of the end-user service can be degraded.
Attack Vector
The attack is delivered over the network via HTTP. It requires an authenticated high-privileged session and depends on victim interaction. No verified proof-of-concept exploit is publicly available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. The EPSS probability is 0.231% at the 14.04 percentile, consistent with a low-likelihood exploitation profile.
No verified exploit code is available. Refer to the Oracle Critical Patch Update July 2026 advisory for technical guidance.
Detection Methods for CVE-2026-47032
Indicators of Compromise
- Unexpected availability degradation or component crashes in the Siebel CRM End User Redwood UI following HTTP interactions from privileged accounts.
- Anomalous HTTP requests targeting Redwood UI endpoints originating from administrative or elevated Siebel user sessions.
- User complaints of UI unavailability tied to interaction with content or links delivered from another authenticated user.
Detection Strategies
- Audit Siebel application logs for repeated failures or exceptions in the Redwood UI request handlers.
- Correlate high-privileged Siebel session activity with subsequent service disruption events on the same host.
- Baseline normal Redwood UI HTTP traffic and alert on deviations in request patterns from privileged users.
Monitoring Recommendations
- Enable verbose logging on Siebel CRM Redwood UI components and forward logs to a centralized SIEM.
- Monitor availability metrics for the Siebel End User service and alert on partial outages.
- Track privileged user actions within Siebel and flag interactions that trigger error conditions in the UI layer.
How to Mitigate CVE-2026-47032
Immediate Actions Required
- Apply the fixes delivered in the Oracle Critical Patch Update July 2026 to all Siebel CRM deployments running versions 24.4 through 26.3.
- Inventory Siebel CRM End User installations and confirm the Redwood UI component version matches a patched build.
- Review and reduce the number of high-privileged Siebel accounts to shrink the exploitable population.
Patch Information
Oracle addressed CVE-2026-47032 in the July 2026 Critical Patch Update. Administrators should consult the Oracle Critical Patch Update July 2026 advisory for the specific patch identifiers and installation guidance covering Siebel CRM versions 24.4 through 26.3.
Workarounds
- Restrict HTTP access to the Siebel CRM Redwood UI to trusted network segments while patching is scheduled.
- Enforce strict role separation so that fewer users hold the high privileges required to exploit the flaw.
- Provide user awareness guidance to reduce the likelihood of interacting with unexpected content shared by other authenticated users.
No configuration example is published by the vendor for this issue. Follow the patch installation steps described in the Oracle Critical Patch Update advisory.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
