# CVE-2026-83465: Oracle Mobile Application Server denial of service and data manipulation

Source: https://junglewise.ai/threats/cve-2026-83465-oracle-mobile-application-server-denial-of-service-and-data  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-15. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-83465 · Severity: high · CVSS 8.2 · Published 2026-09-15

Oracle Mobile Application Server, a critical component of the E-Business Suite used to manage enterprise applications, is vulnerable to a denial-of-service attack that can crash the server and allow unauthorized modification of business data. An attacker with network access can exploit this vulnerability if a user interacts with a malicious request, potentially disrupting operations and compromising data integrity across multiple interconnected systems.

Technologies: [Oracle Mobile Application Server](https://junglewise.ai/threats/technologies/mobile-application-server). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-83465 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83465 being exploited in the wild.

**How severe is CVE-2026-83465?** High severity, with a CVSS score of 8.2, published 15 September 2026.

**Which products and versions are affected?** Oracle Mobile Application Server 12.2.3-12.2.15.

**Is there a fix for CVE-2026-83465?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-83465 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-83465?** Check whether you run Oracle Mobile Application Server at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This is an easily exploitable vulnerability in Oracle Mobile Application Server (MWA Terminal Server component) that requires network access via HTTP and user interaction. The vulnerability allows an unauthenticated attacker to cause a denial of service (server hang or crash) and gain unauthorized update/insert/delete access to application data. The vulnerability affects versions 12.2.3 through 12.2.15 and has scope change implications, meaning successful exploitation can impact systems beyond the directly vulnerable application. Patches are available from Oracle as indicated in the official security advisory.

## Affected products

- Oracle Mobile Application Server 12.2.3-12.2.15

## Timeline

- 2026-09-15: disclosed

## References

- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.html)

## Related threats

- [Oracle Mobile Application Server authorization bypass in MWA Terminal Server](https://junglewise.ai/threats/cve-2026-101829-vulnerability-in-the-oracle-mobile-application-server-product-of)
- [Oracle Mobile Application Server unauthorized data access in MWA Terminal Server](https://junglewise.ai/threats/cve-2026-101828-vulnerability-in-the-oracle-mobile-application-server-product-of)
- [Oracle Mobile Application Server unauthenticated network compromise](https://junglewise.ai/threats/cve-2026-83464-oracle-mobile-application-server-unauthenticated-network)
- [Oracle Mobile Application Server auth bypass in MWA Terminal Server](https://junglewise.ai/threats/cve-2026-83463-oracle-mobile-application-server-auth-bypass-in-mwa-terminal)
- [Oracle Mobile Application Server data exposure in MWA Terminal Server](https://junglewise.ai/threats/cve-2026-70732-oracle-mobile-application-server-data-exposure-in-mwa-terminal)