CVE-2003-1438: Race condition in BEA WebLogic Server and Express 5.1 through 7.0.0.1, when using in-memory session replicatio

Routine

MEDIUM 4.3DOWNGRADE

CVE-2003-1438 is a medium-severity flaw (CVSS 4.3) affecting weblogic server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Race condition in BEA WebLogic Server and Express 5.1 through 7.0.0.1, when using in-memory session replication or replicated stateful session beans, causes the same buffer to be provided to two users, which could allow one user to see session data that was intended for another user.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-362
Published	2003-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: bea

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2003-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:04 UTCUpdated Record last modified

bea weblogic server DOWNGRADE

Affected: 5.1 · 6.0 · 6.1 · 7.0 · 7.0.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.1

1. Check installed version

apt-cache policy weblogic-server || rpm -q weblogic-server || weblogic-server --version

2. No fixed release: DOWNGRADE to a release before 5.1 (Debian / Ubuntu)

apt-cache madison weblogic-server sudo apt install weblogic-server=<VERSION_BEFORE_5.1> sudo apt-mark hold weblogic-server

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list weblogic-server sudo dnf downgrade weblogic-server-<VERSION_BEFORE_5.1> sudo dnf versionlock add weblogic-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-2003-1438?

weblogic server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2003-1438 being exploited?

CVE-2003-1438 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-2003-1438 affect?

CVE-2003-1438 affects weblogic server. Severity is medium (CVSS 4.3). Race condition in BEA WebLogic Server and Express 5.1 through 7.0.0.1, when using in-memory session replication or replicated stateful session beans, causes the same buffer to be provided to two users, which could allow one user to see sess

How urgent is CVE-2003-1438?

Priority 28/100. No elevated risk signals yet.

Software pages

Oracle WebLogic vulnerabilities

Related CVEs

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CVE-2026-34315 MEDIUM 6.5 DOWNGRADE Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Web Services)
CVE-2026-35300 CRITICAL 9.8 DOWNGRADE Vulnerability in the WebLogic Server product of Oracle Fusion Middleware (component: Core)
CVE-2026-35292 CRITICAL 10.0 DOWNGRADE Vulnerability in the WebLogic Server product of Oracle Fusion Middleware (component: Console)

References

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