Oracle Enterprise Manager for Siebel: Privilege escalation to takeover via HTTP
Summary
Oracle Enterprise Manager for Siebel versions 13.5 and 24.1 contain a vulnerability in the Configuration Management component. An attacker with network access via HTTP and a low-privileged account can compromise the product, with a possible full takeover. No user interaction is required, and the CVSS base score is 8.8 (High). Exploitation requires a valid low-privilege account, which lowers the risk from anonymous attackers but not from insiders or stolen credentials.
Affected
- Oracle Enterprise Manager for Siebel 13.5
- Oracle Enterprise Manager for Siebel 24.1
Fixed in
- Fixed in the October 2026 Critical Patch Update (latest revision). Patch IDs for 13.5 and 24.1 are listed in the Oracle advisory: https://www.oracle.com/security-alerts/cpuoct2026.html
Workaround
- Unknown. No vendor-published workaround is available.
- Generic interim measure (not from the vendor): restrict HTTP access to the management interface to an admin network or VPN.
Exploitation
- Exploited in the wild: nothing known in available sources. CISA KEV status not checked.
- Public proof of concept: none found in searches.
- EPSS: 0.00479 (low predicted exploitation probability).
- NVD status: Awaiting Analysis.
Our recommendation
- Check whether Oracle Enterprise Manager for Siebel 13.5 or 24.1 is installed. If not, no action is needed.
- If installed, apply the October 2026 Critical Patch Update (latest revision) for the matching version.
- Until patched, restrict HTTP access to the management interface, review low-privileged accounts and monitor logs.
- Recheck NVD and CISA KEV, as the record is still under analysis.
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
- Oracle Security Alerts index www.oracle.com
- Vulners CVE record (EPSS) vulners.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 31 Oct 2026, 15:28.
Original description (NVD)
Vulnerability in the Oracle Enterprise Manager for Siebel product of Oracle Enterprise Manager (component: Configuration Management). Supported versions that are affected are 13.5 and 24.1. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Enterprise Manager for Siebel. Successful attacks of this vulnerability can result in takeover of Oracle Enterprise Manager for Siebel. 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).
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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