CVE-2013-5549

Name: CVE-2013-5549
Creator: NVD / NIST
Published: 2013-10-25T03:52:55.033+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.66%

Last modified Jun 16, 2026

CVE-2013-5549 is a vulnerability of currently unknown severity. Cisco IOS XR 3.8.1 through 4.2.0 does not properly process fragmented packets within the RP-A, RP-B, PRP, and DRP-B route-processor components, which allows remote attackers to cause a denial of service (transmission outage) via (1) IPv4 or (2) IPv6 traffic, aka Bug ID CSCuh30380.. EPSS estimates a 1.66% chance of exploitation in the next 30 days.

Description

Cisco IOS XR 3.8.1 through 4.2.0 does not properly process fragmented packets within the RP-A, RP-B, PRP, and DRP-B route-processor components, which allows remote attackers to cause a denial of service (transmission outage) via (1) IPv4 or (2) IPv6 traffic, aka Bug ID CSCuh30380.

Metrics

EPSS Probability

1.66%

73.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Cisco	Ios Xr	3.8.1
Cisco	Ios Xr	3.8.2
Cisco	Ios Xr	3.8.3
Cisco	Ios Xr	3.8.4
Cisco	Ios Xr	3.9.0
Cisco	Ios Xr	3.9.1
Cisco	Ios Xr	3.9.2
Cisco	Ios Xr	4.0.0
Cisco	Ios Xr	4.0.1
Cisco	Ios Xr	4.0.2
Cisco	Ios Xr	4.0.3
Cisco	Ios Xr	4.0.4
Cisco	Ios Xr	4.1
Cisco	Ios Xr	4.1.1
Cisco	Ios Xr	4.1.2
Cisco	Ios Xr	4.2.0

References

Timeline

Published: Oct 25, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-5549?

How severe is CVE-2013-5549?

Severity scoring for CVE-2013-5549 is pending analysis. The EPSS model estimates a 1.66% probability of exploitation in the next 30 days.

How do I fix CVE-2013-5549?

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-2013-5549?

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

Scan your code now

Source: NVD / NIST