Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessGain foothold on adjacent communication segment
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ExploitSend crafted traffic to ECE host
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ExecutionExploit flaw under difficult conditions
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ImpactCreate, modify, or delete critical charging data
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK
1 technique across 1 tactic: Defense Evasion The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires the attacker to have access to the physical/adjacent communication segment attached to the hardware on which Elastic Charging Engine runs (AV:A) - it is not exploitable from a remote network or the Internet. No authentication is required (PR:N) and no user interaction is needed (UI:N), but AC:H indicates high attack complexity: success depends on conditions outside the attacker's control (e.g., timing, race conditions, or specific runtime state), per Oracle's 'difficult to exploit' designation. The dominant limiting factor is network adjacency; standard network segmentation isolating the ECE host from untrusted adjacent systems effectively neutralizes this vector. |
| Impact | This is a medium-severity issue (CVSS 3.1 base 5.9) whose real-world risk is substantially constrained by its own vector. AV:A means the attacker must sit on the adjacent/physical communication segment attached to the hardware running Elastic Charging Engine - not reachable from the open Internet - and AC:H confirms Oracle's own 'difficult to exploit' language, requiring conditions outside the attacker's control. PR:N (unauthenticated) and UI:N raise exposure somewhat, and the impact is asymmetric: I:H (unauthorized create/delete/modify of critical data) with only C:L and A:N. No EPSS score, CISA KEV listing, or public POC is present in the provided intelligence, so there is no signal of active or probable exploitation to amplify the base score. Net assessment: a real but low-urgency issue - the high integrity impact matters for a billing/charging system, but adjacent-only access plus high complexity make widespread or opportunistic exploitation unlikely; prioritize as part of the normal Oracle October 2026 CPU patch cycle rather than as an emergency. Note one tension to verify: the 'Authentication Bypass' input tag is not substantiated by the description, which describes an unauthenticated adjacent attack rather than a bypass of an authentication control. |
| Exploit ScenarioDerived | An attacker positioned on the local communication segment physically attached to the ECE host (e.g., a compromised adjacent host or on-link device in the telecom operator's network) sends specially crafted traffic to the Elastic Charging Engine. Because exploitation is difficult (AC:H), it requires favorable timing or configuration, but success yields unauthorized modification or deletion of critical charging/billing data plus limited read access. No public exploit code was identified at time of analysis. |
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Alert meAnalysisAIv1 – Oct 21, 2026
Unauthenticated adjacent-network attackers can create, delete, or modify critical data in Oracle Communications BRM - Elastic Charging Engine 15.x, plus read a limited subset of data, by reaching the physical or adjacent communication segment attached to the ECE hardware. The issue is medium severity (CVSS 5.9) with high attack complexity (AC:H), so success depends on timing or runtime conditions outside the attacker's control and Internet-based exploitation is not possible. Affected releases are 15.0.0.0.0, 15.0.1.0.0.0, 15.1.0.0.0, and 15.2.0.0.0; no public exploit identified at time of analysis, and Oracle's October 2026 Critical Patch Update is the reference advisory.
RemediationAI
Apply the Elastic Charging Engine fix referenced by Oracle's October 2026 Critical Patch Update (https://www.oracle.com/security-alerts/cpuoct2026.html); the provided data does not state an exact patched ECE build, so confirm the CPU-targeted release with Oracle support before upgrading. Until patched, isolate ECE hosts with strict Layer 2/3 segmentation and ACLs that permit only known charging nodes to reach the ECE communication segment, which reduces the AV:A exposure but does not fix the flaw and adds operational overhead for legitimate cluster traffic. Restrict physical access to that segment using isolated VLANs, 802.1X, and port security, with the trade-off of tighter change control for network maintenance. Because integrity impact is high, baseline and monitor ECE data for unexpected creation, deletion, or modification; this detection adds logging load and requires tuning to avoid false positives.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Oracle Communications BRM Elastic Charging Engine is the real-time charging and rating component in Oracle's communications billing stack, and this issue is assigned to its Security component. The assessed CVSS 3.1 vector is AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N: the attacker must be on the adjacent physical or logical communication segment (AV:A), no credentials are required (PR:N), and no user action is needed (UI:N), but AC:H means exploitation is difficult and depends on conditions outside the attacker's control, consistent with Oracle's difficult-to-exploit wording. Impact is high integrity (creation, deletion, or modification of critical ECE data) and low confidentiality (read access to a subset), with no availability impact. The root-cause class is not formally identified because CWE is N/A; the supplied tags label it an Authentication Bypass, which suggests an authentication or authorization weakness on the adjacent segment, but that is an inference from metadata rather than a confirmed coding flaw. No CPE strings were provided, so exact platform and deployment constraints cannot be confirmed from the input.
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Severity by source
AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
Adjacent-only access to the hardware segment gives AV:A; Oracle's 'difficult to exploit' maps to AC:H; no auth or UI (PR:N/UI:N); high integrity, low confidentiality, no availability impact.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
DescriptionCVE.org
Vulnerability in the Oracle Communications BRM - Elastic Charging Engine product of Oracle Communications (component: Security). 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 access to the physical communication segment attached to the hardware where the Oracle Communications BRM - Elastic Charging Engine executes to compromise Oracle Communications BRM - Elastic Charging Engine. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Communications BRM - Elastic Charging Engine accessible data as well as unauthorized read access to a subset of Oracle Communications BRM - Elastic Charging Engine accessible data. CVSS 3.1 Base Score 5.9 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N).
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
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EUVD-2026-106193
GHSA-cr6f-px6j-36gc
NVD
CVE.org
EPSS
Exploit-DB