CVE-2001-0929

Name: CVE-2001-0929
Creator: NVD / NIST
Published: 2001-11-28T05:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.09%

Last modified Jun 16, 2026

CVE-2001-0929 is a vulnerability of currently unknown severity. Cisco IOS Firewall Feature set, aka Context Based Access Control (CBAC) or Cisco Secure Integrated Software, for IOS 11.2P through 12.2T does not properly check the IP protocol type, which could allow remote attackers to bypass access control lists.. EPSS estimates a 2.09% chance of exploitation in the next 30 days.

Description

Cisco IOS Firewall Feature set, aka Context Based Access Control (CBAC) or Cisco Secure Integrated Software, for IOS 11.2P through 12.2T does not properly check the IP protocol type, which could allow remote attackers to bypass access control lists.

Metrics

EPSS Probability

2.09%

79.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Cisco	Ios	11.2p
Cisco	Ios	11.3t
Cisco	Ios	12.0
Cisco	Ios	12.0t
Cisco	Ios	12.1
Cisco	Ios	12.1e
Cisco	Ios	12.1t
Cisco	Ios	12.2
Cisco	Ios	12.2t

References

http://www.cisco.com/warp/public/707/IOS-cbac-dynacl-pub.shtmlPatch, Vendor Advisory
http://www.kb.cert.org/vuls/id/362483US Government Resource
http://www.osvdb.org/808
http://www.securityfocus.com/bid/3588
https://exchange.xforce.ibmcloud.com/vulnerabilities/7614
http://www.cisco.com/warp/public/707/IOS-cbac-dynacl-pub.shtmlPatch, Vendor Advisory
http://www.kb.cert.org/vuls/id/362483US Government Resource
http://www.osvdb.org/808
http://www.securityfocus.com/bid/3588
https://exchange.xforce.ibmcloud.com/vulnerabilities/7614

Timeline

Published: Nov 28, 2001
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2001-0929?

How severe is CVE-2001-0929?

Severity scoring for CVE-2001-0929 is pending analysis. The EPSS model estimates a 2.09% probability of exploitation in the next 30 days.

How do I fix CVE-2001-0929?

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-2001-0929?

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

Scan your code now

Source: NVD / NIST