CVE-2026-101765 in Communications 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. Easily exploitable 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 creation, deletion or modification access to critical data or all Oracle Communications Billing and Revenue Management accessible data as well as unauthorized access to critical data or complete access to all Oracle Communications Billing and Revenue Management accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 its high severity, with a CVSS 3.1 base score of 9.1, indicating critical risk to confidentiality and integrity while having no impact on availability according to the provided vector. The vulnerability allows for exploitation by an unauthenticated attacker who requires only network access via HTTP to initiate successful attacks against the target system. This low barrier to entry significantly increases the likelihood of compromise in environments where the service is exposed to internal or external networks without sufficient perimeter defenses.
From a technical perspective, the flaw enables unauthorized creation, deletion, or modification of critical data within the billing and revenue management infrastructure. The ability to alter such fundamental records suggests that the vulnerability likely involves improper access control mechanisms or insufficient input validation in HTTP-handling routines. When an attacker exploits this weakness, they can manipulate essential business logic data, potentially leading to financial discrepancies, incorrect customer billing, or corruption of system configurations. Furthermore, the vulnerability grants unauthorized read access to critical data and complete access to all accessible information within the BRM environment. This level of privilege escalation implies that sensitive proprietary data, customer personally identifiable information, and internal operational metrics are exposed to potential exfiltration by malicious actors.
The operational impact of this vulnerability is severe for organizations relying on Oracle Communications Billing and Revenue Management for their core revenue processes. Unauthorized modification of billing records can lead to significant financial losses through fraudulent account adjustments or service provisioning errors. Conversely, unauthorized deletion could result in the loss of historical data necessary for auditing, compliance reporting, and dispute resolution. The complete access to all accessible data poses a substantial risk to customer privacy and corporate intellectual property. In regulated industries such as telecommunications, this breach may also trigger non-compliance with data protection regulations like GDPR or CCPA due to the exposure of personally identifiable information without consent.
To mitigate these risks, immediate action is required to apply vendor-provided security patches that address the underlying code flaws in the BRM Server component. Organizations should ensure they are running a version later than 15.2.0.0.0 or applying specific hotfixes if available for earlier supported versions. In addition to patching, implementing strict network segmentation is crucial; the HTTP interface serving this critical application should not be directly exposed to untrusted networks. Deploying web application firewalls can help filter malicious requests that attempt to exploit input validation weaknesses. Furthermore, enforcing strong authentication mechanisms and multi-factor authentication where possible adds a layer of defense-in-depth, although this specific vulnerability affects unauthenticated access, making network-level controls the primary immediate mitigation strategy until patches are applied.
This incident aligns with common weakness enumerations such as CWE-287 for Improper Authentication and CWE-918 for Server-Side Request Forgery if the HTTP handling involves proxying requests, or more broadly CWE-601 for URL Redirection to Untrusted Site if redirection is involved in the attack chain. In terms of adversary tactics, this vulnerability facilitates initial access through network-based exploitation without user interaction, mapping closely to MITRE ATT&CK techniques such as T1190 Exploit Public-Facing Application and potentially T1530 Data from Cloud Storage if data exfiltration occurs via HTTP channels. Continuous monitoring for anomalous HTTP traffic patterns targeting the BRM server endpoints is recommended to detect potential exploitation attempts in real-time while remediation efforts are underway.