Oracle Siebel CRM End User: Missing authentication in Communications Panel
Summary
Oracle Siebel CRM End User versions 17.0 through 26.9 have a Communications Panel/Dashboard component that lacks authentication (CWE-306). An unauthenticated attacker with network access via HTTP can read all data the end-user interface can access and can update, insert or delete some of it. No privileges or user interaction are needed, so the risk is mainly relevant if the component is reachable from the internet. The CNA/NVD CVSS score is 8.2; VulDB lists 7.3.
Affected
- Oracle Siebel CRM End User, versions 17.0 through 26.9 (Communications Panel/Dashboard)
Fixed in
Unknown. Check the Siebel version table in Oracle's October 2026 Critical Patch Update advisory.
Workaround
- No verified Oracle workaround is known.
- Restrict access to the Communications Panel/Dashboard at the reverse proxy or firewall until patched.
- Confirm with Oracle which supported configuration change is available.
Exploitation
- No public exploit known; not in CISA KEV.
- CISA SSVC: Exploitation 'none', Automatable 'yes'.
- Absence of known exploits does not mean no exploit exists.
Our recommendation
- Check whether Siebel CRM End User 17.0 to 26.9 is deployed and which version.
- Check whether the Communications Panel/Dashboard is reachable from the internet.
- Apply the Oracle October 2026 CPU as described in Oracle's advisory.
- Restrict access to the component until it is patched.
- Re-check exploit and KEV sources weekly, as NVD analysis is still pending.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Oracle Critical Patch Update Advisory – October 2026 www.oracle.com
- OpenCVE: CVE-2026-91445 app.opencve.io
- VulDB: CVE-2026-91445 vuldb.com
- Vulners: Oracle CPU October 2026 vulners.com
- Strix: CVE-2026-91445 www.strix.ai
- Tenable: Oracle October 2026 CPU www.tenable.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 1 Nov 2026, 15:24.
Original description (NVD)
Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Communications Panel/Dashboard). Supported versions that are affected are 17.0-26.9. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM End User. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel CRM End User accessible data as well as unauthorized update, insert or delete access to some of Siebel CRM End User accessible data. CVSS 3.1 Base Score 8.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N).
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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