CVE-2005-4764: BEA WebLogic Server and WebLogic Express 9.0, 8.1, and 7.0 lock out the admin user account after multiple inco

This month

HIGH 7.8DOWNGRADE

CVE-2005-4764 is a high-severity flaw (CVSS 7.8) 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 9.0, 8.1, and 7.0 lock out the admin user account after multiple incorrect password guesses, which allows remote attackers who know or guess the admin account name to cause a denial of service (blocked admin logins).

Why this priority

High severity

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

Risk facts

CVSS score	7.8 (High)
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Published	2005-12-31
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

2005-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:19 UTCUpdated Record last modified

bea weblogic server DOWNGRADE

Affected: 6.1 · 6.1 sp1 · 6.1 sp2 · 6.1 sp3 · 6.1 sp4 · 6.1 sp5 · 6.1 sp6 · 6.1 sp7

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.1

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 6.1 (Debian / Ubuntu)

apt-cache madison weblogic-server sudo apt install weblogic-server=<VERSION_BEFORE_6.1> 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_6.1> 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-2005-4764?

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

Is CVE-2005-4764 being exploited?

CVE-2005-4764 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-2005-4764 affect?

CVE-2005-4764 affects weblogic server. Severity is high (CVSS 7.8). BEA WebLogic Server and WebLogic Express 9.0, 8.1, and 7.0 lock out the admin user account after multiple incorrect password guesses, which allows remote attackers who know or guess the admin account name to cause a denial of service (block

How urgent is CVE-2005-4764?

Priority 46/100. High severity

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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