# CVE-2026-83406: Oracle Communications Billing and Revenue Management privilege escalation

Source: https://junglewise.ai/threats/cve-2026-83406-vulnerability-in-the-oracle-communications-billing-and-revenue  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-20. Updated: 2026-10-20  
License: CC BY 4.0 with a link back

CVE-2026-83406 · Severity: medium · CVSS 6.7 · Published 2026-10-20

Oracle Communications Billing and Revenue Management is a telecom platform that handles billing operations for service providers. A local privilege escalation vulnerability allows a high-privileged user with infrastructure access to take over the entire system. Successful exploitation could lead to complete compromise of billing data, operations, and service availability.

Technologies: [Oracle Communications Billing and Revenue Management](https://junglewise.ai/threats/technologies/communications-billing-and-revenue-management). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-83406 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83406 being exploited in the wild.

**How severe is CVE-2026-83406?** Medium severity, with a CVSS score of 6.7, published 20 October 2026.

**Which products and versions are affected?** Oracle Communications Billing and Revenue Management 15.0.0.0.0, 15.0.1.0.0, 15.1.0.0.0, 15.2.0.0.0.

**Is there a fix for CVE-2026-83406?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-83406 attacked?** It is attacked with local access, in a hosted service.

**Am I affected by CVE-2026-83406?** Check whether you run Oracle Communications Billing and Revenue Management at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A local privilege escalation vulnerability in the Platform component allows a high-privileged attacker with logon access to the infrastructure to achieve system takeover. The attack requires local access and high privileges but no user interaction. Exploitation results in complete confidentiality, integrity, and availability compromise of the affected system.

## Affected products

- Oracle Communications Billing and Revenue Management 15.0.0.0.0, 15.0.1.0.0, 15.1.0.0.0, 15.2.0.0.0

## Timeline

- 2026-10-20: disclosed

## References

- [https://www.oracle.com/security-alerts/cpuoct2026.html](https://www.oracle.com/security-alerts/cpuoct2026.html)

## Related threats

- [Oracle Communications Billing and Revenue Management privilege escalation](https://junglewise.ai/threats/cve-2026-91629-vulnerability-in-the-oracle-communications-billing-and-revenue)
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- [Oracle Communications Billing and Revenue Management privilege escalation in Platform](https://junglewise.ai/threats/cve-2026-91627-vulnerability-in-the-oracle-communications-billing-and-revenue)
- [Oracle Communications Billing and Revenue Management privilege escalation in Platform](https://junglewise.ai/threats/cve-2026-87297-vulnerability-in-the-oracle-communications-billing-and-revenue)
- [Oracle Communications Billing and Revenue Management unauthorized data access in BRM Server](https://junglewise.ai/threats/cve-2026-101807-vulnerability-in-the-oracle-communications-billing-and-revenue)