CVE-2004-1756: BEA WebLogic Server and WebLogic Express 8.1 SP2 and earlier, and 7.0 SP4 and earlier, when using 2-way SSL wi

Routine

MEDIUM 5.0DOWNGRADE

CVE-2004-1756 is a medium-severity flaw (CVSS 5.0) affecting weblogic server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

BEA WebLogic Server and WebLogic Express 8.1 SP2 and earlier, and 7.0 SP4 and earlier, when using 2-way SSL with a custom trust manager, may accept a certificate chain even if the trust manager rejects it, which allows remote attackers to spoof other users or servers.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.2% (top 31%)
CISA exploited list	No
Published	2004-04-13
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

2004-04-13 04:00 UTCPublished CVE record published
2026-06-16 22:08 UTCUpdated Record last modified

bea weblogic server DOWNGRADE

Affected: 7.0 · 7.0 sp1 · 7.0 sp2 · 7.0 sp3 · 7.0 sp4 · 8.1 · 8.1 sp1 · 8.1 sp2

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.0

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 7.0 (Debian / Ubuntu)

apt-cache madison weblogic-server sudo apt install weblogic-server=<VERSION_BEFORE_7.0> 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_7.0> 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-2004-1756?

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

Is CVE-2004-1756 being exploited?

CVE-2004-1756 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-2004-1756 affect?

CVE-2004-1756 affects weblogic server. Severity is medium (CVSS 5.0). BEA WebLogic Server and WebLogic Express 8.1 SP2 and earlier, and 7.0 SP4 and earlier, when using 2-way SSL with a custom trust manager, may accept a certificate chain even if the trust manager rejects it, which allows remote attackers to s

How urgent is CVE-2004-1756?

Priority 35/100. No elevated risk signals yet.

Software pages

Oracle WebLogic vulnerabilities

Related CVEs

CVE-2026-34305 HIGH 7.5 DOWNGRADE Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Web Services)
CVE-2026-34292 HIGH 7.2 DOWNGRADE Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core)
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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