CVE-2013-5480

Name: CVE-2013-5480
Creator: NVD / NIST
Published: 2013-09-27T10:08:04.337+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.33%

Last modified Jun 16, 2026

CVE-2013-5480 is a vulnerability of currently unknown severity. The DNS-over-TCP implementation in Cisco IOS 12.2 and 15.0 through 15.3, when NAT is used, allows remote attackers to cause a denial of service (device reload) via a crafted IPv4 DNS TCP stream, aka Bug ID CSCuf28733.. EPSS estimates a 1.33% chance of exploitation in the next 30 days.

Description

The DNS-over-TCP implementation in Cisco IOS 12.2 and 15.0 through 15.3, when NAT is used, allows remote attackers to cause a denial of service (device reload) via a crafted IPv4 DNS TCP stream, aka Bug ID CSCuf28733.

Metrics

EPSS Probability

1.33%

67.4th 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	15.0
Cisco	Ios	15.1
Cisco	Ios	15.2
Cisco	Ios	15.3

References

Timeline

Published: Sep 27, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-5480?

How severe is CVE-2013-5480?

Severity scoring for CVE-2013-5480 is pending analysis. The EPSS model estimates a 1.33% probability of exploitation in the next 30 days.

How do I fix CVE-2013-5480?

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-2013-5480?

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

Scan your code now

Source: NVD / NIST