CVE-2026-83465: DoS (CVSS 8.2)

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).

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CVSS v3.1 Score

8.2

HIGH

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

EPSS — Exploit Prediction

0.0032

Probability of exploitation

0.23%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

References

Other References

https://www.oracle.com/security-alerts/cspusep2026.html

Frequently Asked Questions

What is CVE-2026-83465? +

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). It has a CVSS v3.1 base score of 8.2 (HIGH).

How severe is CVE-2026-83465? +

CVE-2026-83465 has a CVSS v3.1 score of 8.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0032, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-83465? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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