CVE-2003-1398

Name: CVE-2003-1398
Creator: NVD / NIST
Published: 2003-12-31T05:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.85%

Last modified Jun 16, 2026

CVE-2003-1398 is a vulnerability of currently unknown severity. Cisco IOS 12.0 through 12.2, when IP routing is disabled, accepts false ICMP redirect messages, which allows remote attackers to cause a denial of service (network routing modification).. EPSS estimates a 1.85% chance of exploitation in the next 30 days.

Description

Cisco IOS 12.0 through 12.2, when IP routing is disabled, accepts false ICMP redirect messages, which allows remote attackers to cause a denial of service (network routing modification).

Metrics

EPSS Probability

1.85%

76.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Cisco	Ios	12.0
Cisco	Ios	12.0s
Cisco	Ios	12.0st
Cisco	Ios	12.0t
Cisco	Ios	12.1
Cisco	Ios	12.1e
Cisco	Ios	12.1t
Cisco	Ios	12.2
Cisco	Ios	12.2e
Cisco	Ios	12.2f
Cisco	Ios	12.2s
Cisco	Ios	12.2t

References

Timeline

Published: Dec 31, 2003
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2003-1398?

Cisco IOS 12.0 through 12.2, when IP routing is disabled, accepts false ICMP redirect messages, which allows remote attackers to cause a denial of service (network routing modification).

How severe is CVE-2003-1398?

Severity scoring for CVE-2003-1398 is pending analysis. The EPSS model estimates a 1.85% probability of exploitation in the next 30 days.

How do I fix CVE-2003-1398?

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-2003-1398?

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

Scan your code now

Source: NVD / NIST