CVE-2014-2109

Name: CVE-2014-2109
Creator: NVD / NIST
Published: 2014-03-27T21:55:09.033+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.22%

Last modified Jun 17, 2026

CVE-2014-2109 is a vulnerability of currently unknown severity. The TCP Input module in Cisco IOS 12.2 through 12.4 and 15.0 through 15.4, when NAT is used, allows remote attackers to cause a denial of service (memory consumption or device reload) via crafted TCP packets, aka Bug IDs CSCuh33843 and CSCuj41494.. EPSS estimates a 2.22% chance of exploitation in the next 30 days.

Description

The TCP Input module in Cisco IOS 12.2 through 12.4 and 15.0 through 15.4, when NAT is used, allows remote attackers to cause a denial of service (memory consumption or device reload) via crafted TCP packets, aka Bug IDs CSCuh33843 and CSCuj41494.

Metrics

EPSS Probability

2.22%

80.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Cisco	Ios	12.2
Cisco	Ios	12.3
Cisco	Ios	12.4
Cisco	Ios	15.0
Cisco	Ios	15.1
Cisco	Ios	15.2
Cisco	Ios	15.3
Cisco	Ios	15.4

References

Timeline

Published: Mar 27, 2014
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-2109?

How severe is CVE-2014-2109?

Severity scoring for CVE-2014-2109 is pending analysis. The EPSS model estimates a 2.22% probability of exploitation in the next 30 days.

How do I fix CVE-2014-2109?

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-2014-2109?

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

Scan your code now

Source: NVD / NIST