CVE-2006-4911

Name: CVE-2006-4911
Creator: NVD / NIST
Published: 2006-09-21T00:07:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.20%

Last modified Jun 16, 2026

CVE-2006-4911 is a vulnerability of currently unknown severity. Unspecified vulnerability in Cisco IPS 5.0 before 5.0(6p2) and 5.1 before 5.1(2), when running in inline or promiscuous mode, allows remote attackers to bypass traffic inspection via a "crafted sequence of fragmented IP packets".. EPSS estimates a 4.20% chance of exploitation in the next 30 days.

Description

Unspecified vulnerability in Cisco IPS 5.0 before 5.0(6p2) and 5.1 before 5.1(2), when running in inline or promiscuous mode, allows remote attackers to bypass traffic inspection via a "crafted sequence of fragmented IP packets".

Metrics

EPSS Probability

4.20%

89.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Cisco	Ips Sensor Software	>= 5.0, < 5.0\(6p2\)
Cisco	Ips Sensor Software	>= 5.1, < 5.1\(2\)

References

http://secunia.com/advisories/22022Third Party Advisory
http://securitytracker.com/id?1016891Third Party Advisory, VDB Entry
http://www.cisco.com/warp/public/707/cisco-sa-20060920-ips.shtmlVendor Advisory
http://www.kb.cert.org/vuls/id/658884Third Party Advisory, US Government Resource
http://www.osvdb.org/29036Broken Link
http://www.securityfocus.com/bid/20127Third Party Advisory, VDB Entry
http://www.vupen.com/english/advisories/2006/3721Permissions Required
https://exchange.xforce.ibmcloud.com/vulnerabilities/29058Third Party Advisory, VDB Entry
http://secunia.com/advisories/22022Third Party Advisory
http://securitytracker.com/id?1016891Third Party Advisory, VDB Entry
http://www.cisco.com/warp/public/707/cisco-sa-20060920-ips.shtmlVendor Advisory
http://www.kb.cert.org/vuls/id/658884Third Party Advisory, US Government Resource
http://www.osvdb.org/29036Broken Link
http://www.securityfocus.com/bid/20127Third Party Advisory, VDB Entry
http://www.vupen.com/english/advisories/2006/3721Permissions Required
https://exchange.xforce.ibmcloud.com/vulnerabilities/29058Third Party Advisory, VDB Entry

Timeline

Published: Sep 21, 2006
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2006-4911?

How severe is CVE-2006-4911?

Severity scoring for CVE-2006-4911 is pending analysis. The EPSS model estimates a 4.20% probability of exploitation in the next 30 days.

How do I fix CVE-2006-4911?

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.

How Strix Helps

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Source: NVD / NIST