---
title: "CVE-2026-83463: Oracle Mobile Application Server - Authentication Bypass"
description: "Oracle Mobile Application Server 12.2.3-12.2.15 contains a takeover vulnerability caused by access to the physical communication segment in MWA Terminal Server, letting unauthenticated attackers compromise the server, exploit requires physical network access."
url: https://panop.io/threat-heartbeat/CVE-2026-83463/
---

# CVE-2026-83463 Oracle Mobile Application Server - Authentication Bypass

Oracle Mobile Application Server 12.2.3-12.2.15 contains a takeover vulnerability caused by access to the physical communication segment in MWA Terminal Server, letting unauthenticated attackers compromise the server, exploit requires physical network access.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

EPSS

0.33% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-83463)

## Details

Type

Authentication Bypass

Impact

Remote Code Execution, Data Tampering, Denial Of Service, Information Disclosure

CVSS vector

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

Published

15 September 2026

Updated

15 October 2026

Weakness

[CWE-269](https://cwe.mitre.org/data/definitions/269.html)

## Vendor fix

Update to a version later than 12.2.15 or apply latest patches from Oracle.

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-2026-83463](https://nvd.nist.gov/vuln/detail/CVE-2026-83463)
- [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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