CVE-2026-83406

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Privilege Escalation in Oracle Communications Billing and Revenue Management

Publication date: 2026-10-20

Last updated on: 2026-10-27

Assigner: Oracle

Description

Vulnerability in the Oracle Communications Billing and Revenue Management product of Oracle Communications (component: Platform). 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 high 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 takeover of Oracle Communications Billing and Revenue Management. CVSS 3.1 Base Score 6.7 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

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Meta Information

Published

2026-10-20

Last Modified

2026-10-27

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-83406

EUVD

EUVD-2026-106323

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle Corporation	Oracle Communications Billing and Revenue Management	15.0.0.0.0
Oracle Corporation	Oracle Communications Billing and Revenue Management	15.0.1.0.0
Oracle Corporation	Oracle Communications Billing and Revenue Management	15.1.0.0.0
Oracle Corporation	Oracle Communications Billing and Revenue Management	15.2.0.0.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Communications Billing and Revenue Management affecting versions 15.0.0.0.0 through 15.2.0.0.0. It allows a high-privileged attacker with local access to compromise the system and take over the Oracle Communications Billing and Revenue Management software.

Detection Guidance

This vulnerability requires high-privileged local access to exploit. Detection should focus on verifying Oracle Communications Billing and Revenue Management versions and applying Oracle's security patches. Check installed versions with commands like 'opatch lsinventory' or examine version files in the Oracle BRM installation directory. Monitor Oracle's security advisories for updates.

Impact Analysis

An attacker could exploit this to gain full control over the Oracle Communications Billing and Revenue Management system, potentially leading to unauthorized access, data breaches, or disruption of billing and revenue operations.

Compliance Impact

The vulnerability allows high privileged attackers to compromise Oracle Communications Billing and Revenue Management, potentially leading to unauthorized access, data breaches, or system takeover. This could impact compliance with GDPR by risking unauthorized data access or processing, and with HIPAA by compromising protected health information integrity and confidentiality.

Mitigation Strategies

Apply the latest Oracle Critical Patch Update (CPU) for Oracle Communications Billing and Revenue Management to address this vulnerability. Ensure only trusted users have logon access to the infrastructure where this product executes. Monitor for unusual activity in the Oracle Communications Billing and Revenue Management environment.

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