What is the severity of CVE-2016-6421?

CVE-2016-6421 has been classified as a high severity vulnerability due to its potential to cause a denial of service.

How do I fix CVE-2016-6421?

To fix CVE-2016-6421, upgrade to a version of Cisco IOS XR that is not affected by this vulnerability.

What systems are affected by CVE-2016-6421?

CVE-2016-6421 affects Cisco IOS XR version 5.2.2 specifically.

What type of attack does CVE-2016-6421 enable?

CVE-2016-6421 enables remote attackers to cause a denial of service by exploiting a crafted OSPF Link State Advertisement update.

Is there a workaround for CVE-2016-6421?

There are no known workarounds for CVE-2016-6421; upgrading is the recommended course of action.

Vulnerability/
CVE-2016-6421

medium

5.3

CWE

399

5/10/2016

6/8/2024

CVE-2016-6421

First published: Wed Oct 05 2016(Updated: )

Cisco IOS XR 5.2.2 allows remote attackers to cause a denial of service (process restart) via a crafted OSPF Link State Advertisement (LSA) update, aka Bug ID CSCvb05643.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco IOS XRv 9000	=5.2.2

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2016-6421?
CVE-2016-6421 has been classified as a high severity vulnerability due to its potential to cause a denial of service.
How do I fix CVE-2016-6421?
To fix CVE-2016-6421, upgrade to a version of Cisco IOS XR that is not affected by this vulnerability.
What systems are affected by CVE-2016-6421?
CVE-2016-6421 affects Cisco IOS XR version 5.2.2 specifically.
What type of attack does CVE-2016-6421 enable?
CVE-2016-6421 enables remote attackers to cause a denial of service by exploiting a crafted OSPF Link State Advertisement update.
Is there a workaround for CVE-2016-6421?
There are no known workarounds for CVE-2016-6421; upgrading is the recommended course of action.

agent/type
agent/softwarecombine
collector/mitre-cve
source/MITRE
agent/author
agent/last-modified-date
agent/references
agent/severity
agent/weakness
agent/event
agent/first-publish-date
agent/description
agent/source
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
vendor/cisco
canonical/cisco ios xrv 9000
version/cisco ios xrv 9000/5.2.2

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Frequently Asked Questions

What is the severity of CVE-2016-6421?
CVE-2016-6421 has been classified as a high severity vulnerability due to its potential to cause a denial of service.
How do I fix CVE-2016-6421?
To fix CVE-2016-6421, upgrade to a version of Cisco IOS XR that is not affected by this vulnerability.
What systems are affected by CVE-2016-6421?
CVE-2016-6421 affects Cisco IOS XR version 5.2.2 specifically.
What type of attack does CVE-2016-6421 enable?
CVE-2016-6421 enables remote attackers to cause a denial of service by exploiting a crafted OSPF Link State Advertisement update.
Is there a workaround for CVE-2016-6421?
There are no known workarounds for CVE-2016-6421; upgrading is the recommended course of action.