# CVE-2026-91628: Oracle Communications Billing and Revenue Management privilege escalation in BRM Server

Source: https://junglewise.ai/threats/cve-2026-91628-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-2026-91628 · Severity: medium · CVSS 5.5 · Published 2026-10-20

Oracle Communications Billing and Revenue Management is a billing system that manages revenue and customer billing data for telecom carriers. A vulnerability in its BRM Server component allows a low-privileged attacker with local access to the server to read sensitive billing and customer data without authorization. An attacker exploiting this flaw could access complete billing records and confidential information.

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-2026-91628 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-91628 being exploited in the wild.

**How severe is CVE-2026-91628?** Medium severity, with a CVSS score of 5.5, 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-2026-91628?** 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-2026-91628 attacked?** It is attacked with local access, in a hosted service.

**Am I affected by CVE-2026-91628?** 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 BRM Server component allows a low-privileged authenticated user to access unauthorized data. The vulnerability requires local infrastructure access and existing logon privileges to exploit. Successful exploitation grants confidentiality violation through unauthorized read access to critical billing and customer data.

## 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)
- [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 privilege escalation](https://junglewise.ai/threats/cve-2026-83406-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)