CVE-2026-83461: Vulnerability in the Oracle Mobile Application Server product of Oracle E-Business Suite (component: MWA Termi

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HIGH 8.2REMOTEUPGRADE

CVE-2026-83461 is a high-severity flaw (CVSS 8.2) affecting mobile application server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 M

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 62%)
CISA exploited list	No
Weakness	CWE-306
Published	2026-09-15
Last modified	2026-10-09

Publisher (CNA): Oracle · Vendor: oracle

Last updated 2026-10-09 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-15 20:18 UTCPublished CVE record published
2026-10-09 14:47 UTCUpdated Record last modified

oracle mobile application server UPGRADE

Affected: >= 12.2.3 and <= 12.2.15

Fixed in: newer than 12.2.15

Safe to downgrade to: a release before 12.2.3

1. Check installed version

apt-cache policy mobile-application-server || rpm -q mobile-application-server || mobile-application-server --version

2. UPGRADE to newer than 12.2.15 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mobile-application-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mobile-application-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 12.2.3 (Debian / Ubuntu)

apt-cache madison mobile-application-server sudo apt install mobile-application-server=<VERSION_BEFORE_12.2.3> sudo apt-mark hold mobile-application-server

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list mobile-application-server sudo dnf downgrade mobile-application-server-<VERSION_BEFORE_12.2.3> sudo dnf versionlock add mobile-application-server

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-83461?

mobile application server: upgrade to newer than 12.2.15. Exact commands for each OS are on this page.

Is CVE-2026-83461 being exploited?

CVE-2026-83461 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-83461 affect?

CVE-2026-83461 affects mobile application server. Severity is high (CVSS 8.2). 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 att

How urgent is CVE-2026-83461?

Priority 43/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-83465 HIGH 8.2 UPGRADE Vulnerability in the Oracle Mobile Application Server product of Oracle E-Business Suite (component: MWA Termi
CVE-2026-83464 HIGH 8.1 UPGRADE Vulnerability in the Oracle Mobile Application Server product of Oracle E-Business Suite (component: MWA Termi
CVE-2026-83463 HIGH 7.5 UPGRADE Vulnerability in the Oracle Mobile Application Server product of Oracle E-Business Suite (component: MWA Termi
CVE-2026-83462 CRITICAL 9.8 UPGRADE Vulnerability in the Oracle Mobile Application Server product of Oracle E-Business Suite (component: MWA Termi

References

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