CVE-2026-101807 in Billing and Revenue Management
Summary
by MITRE • 10/21/2026
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. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Communications Billing and Revenue Management. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Communications Billing and Revenue Management accessible data as well as unauthorized read access to a subset of Oracle Communications Billing and Revenue Management accessible data. CVSS 3.1 Base Score 4.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N).
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Analysis
by VulDB Data Team • 10/21/2026
The identified vulnerability resides within the Oracle Communications Billing and Revenue Management product, specifically affecting the BRM Server component across versions 15.0.0.0.0 through 15.2.0.0. This security flaw is characterized by a complex exploitation vector that requires an unauthenticated attacker to possess network access via HTTP in order to compromise the system. The difficulty of exploiting this vulnerability suggests that while it does not allow for trivial remote code execution or immediate full system takeover, it presents a significant risk due to its potential impact on data integrity and confidentiality within critical billing infrastructure.
From a technical perspective, the flaw enables unauthorized modifications to accessible data within the Oracle Communications Billing and Revenue Management environment. Specifically, successful exploitation allows an attacker to perform unauthorized updates, inserts, or deletes against certain datasets managed by the BRM Server. This capability directly undermines the integrity of financial records, customer information, and usage logs that are central to the operation of telecommunications billing systems. The ability to alter data without authentication indicates a failure in proper access control mechanisms at the application layer, allowing malicious actors to manipulate stateful operations on the server side through crafted HTTP requests.
In addition to compromising data integrity, this vulnerability also facilitates unauthorized read access to a subset of accessible data within the BRM system. This aspect of the flaw impacts confidentiality by potentially exposing sensitive customer information, billing details, or proprietary business logic to external parties who should not have such privileges. The combination of read and write capabilities means that an attacker could not only steal valuable data but also corrupt it, leading to inaccurate billing statements, financial discrepancies, and operational disruptions for service providers relying on this platform.
The severity of this vulnerability is quantified by a CVSS 3.1 Base Score of 4.8, which classifies the issue as Medium risk. The vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N) highlights that while the attack requires high complexity and no user interaction or privileges are needed initially, the scope remains unchanged with only low impacts on confidentiality and integrity, and no impact on availability. This scoring reflects the nuanced nature of the flaw where exploitation is not straightforward but carries substantial consequences if achieved. The lack of authentication requirement makes it particularly concerning for systems exposed to untrusted networks, although the high complexity acts as a natural deterrent against automated mass-exploitation attempts.
This vulnerability aligns with CWE-862 Missing Authorization and CWE-918 Server-Side Request Forgery (SSRF) if the HTTP access vector involves manipulating server-side requests, or potentially CWE-798 if it relates to hardcoded credentials in configuration files that are being exploited via network access. In terms of MITRE ATT&CK mapping, this behavior corresponds to techniques under Tactic TA0001 Initial Access and TA0005 Defense Evasion, specifically leveraging valid accounts or unauthenticated endpoints to gain a foothold and manipulate data within the environment. The focus on HTTP-based exploitation suggests that web application firewalls or strict input validation might have been bypassed through sophisticated request crafting rather than simple injection attacks.
To mitigate this risk, organizations running affected versions of Oracle Communications Billing and Revenue Management should immediately apply the latest security patches provided by Oracle for their specific version line. It is critical to ensure that the BRM Server components are not directly exposed to untrusted networks via HTTP without robust intermediary controls such as reverse proxies with strict access control lists or Web Application Firewalls configured to detect anomalous request patterns associated with this vulnerability type. Additionally, implementing network segmentation to restrict direct internet-facing access to billing servers and enforcing multi-factor authentication for any administrative interfaces can significantly reduce the attack surface. Regular auditing of HTTP logs for unusual activity related to data modification operations is also recommended to detect potential exploitation attempts early in their lifecycle.