---
id: "CVE-2026-91628"
kind: "vulnerability"
aliases: ["CVE-2026-91628"]
title: "Oracle BRM Server: low-privilege local user can read critical billing data"
severity: "medium"
cvss: 5.5
epss: 0.00151
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["billing", "brm", "on-prem", "oracle-communications", "vendor"]
not_affected_if: ["only-admin-logon", "other-versions"]
published_at: "2026-10-20T22:21:02+00:00"
first_seen_at: "2026-10-23T21:57:27+00:00"
updated_at: "2026-10-25T04:11:59+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91628", "first_seen_at": "2026-10-23T21:57:27+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-91628", "first_seen_at": "2026-10-24T13:15:55+00:00"}]
---

# Oracle BRM Server: low-privilege local user can read critical billing data

Oracle Communications Billing and Revenue Management (BRM) Server versions 15.0.0.0.0 through 15.2.0.0.0 contain a flaw that lets a low-privileged user with logon to the host reach data they should not see. A successful attack gives unauthorized access to critical data held by the BRM system.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Confirm the installed BRM Server version against `15.0.0.0.0`, `15.0.1.0.0`, `15.1.0.0.0` and `15.2.0.0.0`
- Check whether any local accounts beyond administrators can log on to the BRM host

## Fix

- Apply the Oracle Critical Patch Update fix for Oracle Communications Billing and Revenue Management (BRM Server) for your version line; the exact patch is unknown from the sources
- Restrict local logon to the BRM host to administrators only until patched

## Timeline

- 2026-10-23T21:57:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91628
- 2026-10-24T13:15:55+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-91628

## From the sources

Vulnerability in the Oracle Communications Billing and Revenue Management product of Oracle Communications (component: BRM Server).  Supported versions that are affected are 15.0.0.0.0, 15.0.1.0.0, 15.1.0.0.0 and  15.2.0.0.0. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Communications Billing and Revenue Management executes to compromise Oracle Communications Billing and Revenue Management.  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all Oracle Communications Billing and Revenue Management accessible data. CVSS 3.1 Base Score 5.5 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_