CVE-2026-83465 Denial of service in Oracle Mobile Application Server

High 8.2 Published 15 Sep 2026 Updated 21 Sep 2026

Unauthenticated attackers can cause a complete denial of service and modify data in Oracle Mobile Application Server via HTTP, requiring user interaction.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-83465?

CVE-2026-83465 is a high-severity denial of service vulnerability in Oracle Mobile Application Server, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Vulnerability in the Oracle Mobile Application Server product of Oracle E-Business Suite (component: MWA Terminal Server). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Mobile Application Server. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Mobile Application Server, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Mobile Application Server as well as unauthorized update, insert or delete access to some of Oracle Mobile Application Server accessible data. CVSS 3.1 Base Score 8.2 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:H).

Weakness: CWE-400

Which versions are affected by CVE-2026-83465?

It affects 1 product.

Products include Oracle Mobile Application Server.

How do I fix CVE-2026-83465?

No fix has been published for CVE-2026-83465 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-83465 being exploited?

There is no known exploitation of CVE-2026-83465 in the wild and no public exploit code.

Sources

Also known as GHSA-wwfr-7hx9-c763.