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VulnerabilityPublished Updated

CVE-2026-83461: Oracle Mobile Application Server · Missing Authentication

Affects Oracle Mobile Application ServerSource CVE Database V5

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Not known to be exploited · CVSS 8.2 High.

Data as of 30 Oct 2026, 20:25 UTC

CVSS 3.1 base score
8.2High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 38% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Oracle CorporationOracle Mobile Application ServerAffected
  • >=12.2.3 <=12.2.15
Fixed in–
Mavencom.oracle/mobile-application-serverpkg:maven/com.oracle/mobile-application-serverOther threatsAffected
  • >=12.2.3 <=12.2.15
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Oracle has addressed this vulnerability in its September 2026 Critical Security Patch Update. Customers are strongly advised to apply the relevant patches promptly to affected versions 12.2.3 through 12.2.15. Oracle emphasizes the importance of staying on actively supported versions and applying security patches without delay. No alternative mitigations or workarounds are specified in the advisory.

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 TCP to compromise Oracle Mobile Application Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Mobile Application Server accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Mobile Application Server. CVSS 3.1 Base Score 8.2 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L).

References

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