CVE-2013-5469

Name: CVE-2013-5469
Creator: NVD / NIST
Published: 2013-08-30T20:55:08.737+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.36%

Last modified Jun 16, 2026

CVE-2013-5469 is a vulnerability of currently unknown severity. The TCP implementation in Cisco IOS does not properly implement the transitions from the ESTABLISHED state to the CLOSED state, which allows remote attackers to cause a denial of service (flood of ACK packets) via a crafted series of ACK and FIN packets, aka Bug ID CSCtz14399.. EPSS estimates a 2.36% chance of exploitation in the next 30 days.

Description

The TCP implementation in Cisco IOS does not properly implement the transitions from the ESTABLISHED state to the CLOSED state, which allows remote attackers to cause a denial of service (flood of ACK packets) via a crafted series of ACK and FIN packets, aka Bug ID CSCtz14399.

Metrics

EPSS Probability

2.36%

81.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Cisco	Ios	All versions

References

Timeline

Published: Aug 30, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-5469?

How severe is CVE-2013-5469?

Severity scoring for CVE-2013-5469 is pending analysis. The EPSS model estimates a 2.36% probability of exploitation in the next 30 days.

How do I fix CVE-2013-5469?

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-2013-5469?

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

Scan your code now

Source: NVD / NIST