CVE-2005-4441

Name: CVE-2005-4441
Creator: NVD / NIST
Published: 2005-12-21T02:03:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.61%

Last modified Jun 16, 2026

CVE-2005-4441 is a vulnerability of currently unknown severity. The PVLAN protocol allows remote attackers to bypass network segmentation and spoof PVLAN traffic via a PVLAN message with a target MAC address that is set to a gateway router, which causes the packet to be sent to the router, where the source MAC is modified, aka "Modification of the MAC spoofing PVLAN jumping attack," as demonstrated by pvlan.c.. EPSS estimates a 1.61% chance of exploitation in the next 30 days.

Description

The PVLAN protocol allows remote attackers to bypass network segmentation and spoof PVLAN traffic via a PVLAN message with a target MAC address that is set to a gateway router, which causes the packet to be sent to the router, where the source MAC is modified, aka "Modification of the MAC spoofing PVLAN jumping attack," as demonstrated by pvlan.c.

Metrics

EPSS Probability

1.61%

72.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Pvlan Protocol	Pvlan Protocol	All versions

References

Timeline

Published: Dec 21, 2005
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2005-4441?

How severe is CVE-2005-4441?

Severity scoring for CVE-2005-4441 is pending analysis. The EPSS model estimates a 1.61% probability of exploitation in the next 30 days.

How do I fix CVE-2005-4441?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2005-4441?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST