How severe is CVE-2005-4766?

CVE-2005-4766 has a CVSS 2.0 base score of 5.4, rated medium severity.

Is CVE-2005-4766 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-4766?

CVE-2005-4766 primarily affects Bea Weblogic Server. In total, 33 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-4766?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2005-4766 published?

CVE-2005-4766 was published on 2005-12-31 and last updated on 2026-06-16.

CVE-2005-4766

CVE-2005-4766 is a medium-severity vulnerability in Bea Weblogic Server with a CVSS 2.0 base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.4)
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Bea Weblogic Server
Published: 2005-12-31
Last modified: 2026-06-16

Description

BEA WebLogic Server and WebLogic Express 8.1 SP4 and earlier, and 7.0 SP5 and earlier, do not encrypt multicast traffic, which might allow remote attackers to read sensitive cluster synchronization messages by sniffing the multicast traffic.

Frequently asked questions

What is CVE-2005-4766?: BEA WebLogic Server and WebLogic Express 8.1 SP4 and earlier, and 7.0 SP5 and earlier, do not encrypt multicast traffic, which might allow remote attackers to read sensitive cluster synchronization messages by sniffing the multicast traffic.
How severe is CVE-2005-4766?: CVE-2005-4766 has a CVSS 2.0 base score of 5.4, rated medium severity.
Is CVE-2005-4766 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-4766?: CVE-2005-4766 primarily affects Bea Weblogic Server. In total, 33 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-4766?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2005-4766 published?: CVE-2005-4766 was published on 2005-12-31 and last updated on 2026-06-16.

References

Affected products (33)

cpe:2.3:a:bea:weblogic_server:7.0:*:*:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:*:express:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:*:win32:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:sp1:*:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:sp1:express:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:sp1:win32:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:sp2:*:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:sp2:express:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:sp2:win32:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:sp3:*:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:sp3:express:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:sp3:win32:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:sp4:*:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:sp4:express:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:sp4:win32:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:sp5:*:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:sp5:express:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:7.0:sp5:win32:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:8.1:*:*:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:8.1:*:express:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:8.1:*:win32:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:8.1:sp1:*:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:8.1:sp1:express:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:8.1:sp1:win32:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:8.1:sp2:*:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:8.1:sp2:express:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:8.1:sp2:win32:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:8.1:sp3:*:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:8.1:sp3:express:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:8.1:sp3:win32:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:8.1:sp4:*:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:8.1:sp4:express:*:*:*:*:*
cpe:2.3:a:bea:weblogic_server:8.1:sp4:win32:*:*:*:*:*

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