---
title: "CVE-2026-83465: Oracle Mobile Application Server - Broken Access Control"
description: "Oracle Mobile Application Server 12.2.3-12.2.15 contains a broken access control vulnerability caused by improper authorization in MWA Terminal Server, letting unauthenticated attackers cause denial of service and data modification, exploit requires user interaction."
url: https://panop.io/threat-heartbeat/CVE-2026-83465/
---

# CVE-2026-83465 Oracle Mobile Application Server - Broken Access Control

Oracle Mobile Application Server 12.2.3-12.2.15 contains a broken access control vulnerability caused by improper authorization in MWA Terminal Server, letting unauthenticated attackers cause denial of service and data modification, exploit requires user interaction.

CVSS base score 8.2 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.32% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-83465)

## Details

Type

Broken Access Control

Impact

Data Tampering, Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:H

Published

15 September 2026

Updated

15 October 2026

Weakness

[CWE-400](https://cwe.mitre.org/data/definitions/400.html)

## Vendor fix

Update to the latest available version of Oracle Mobile Application Server.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-83465](https://nvd.nist.gov/vuln/detail/CVE-2026-83465)
- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.html)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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