What is the severity of CVE-2012-3893?

CVE-2012-3893 is classified as a denial of service vulnerability affecting the FlexVPN implementation in Cisco IOS.

How do I fix CVE-2012-3893?

To mitigate CVE-2012-3893, upgrade Cisco IOS to a version that does not have this vulnerability, specifically versions later than 15.3.

Who is affected by CVE-2012-3893?

CVE-2012-3893 affects remote authenticated users who can exploit spoke-to-spoke traffic in Cisco IOS 15.2 and 15.3.

What causes the vulnerability CVE-2012-3893?

CVE-2012-3893 is caused by the FlexVPN implementation mishandling spoke-to-spoke traffic, leading to a potential crash.

Is there a workaround for CVE-2012-3893?

Currently, the recommended approach for CVE-2012-3893 is to upgrade the affected Cisco IOS versions or implement network segmentation to limit spoke-to-spoke traffic.

Vulnerability/
CVE-2012-3893

medium

6.3

16/9/2012

3/10/2022

6/8/2024

CVE-2012-3893

First published: Sun Sep 16 2012(Updated: )

The FlexVPN implementation in Cisco IOS 15.2 and 15.3 allows remote authenticated users to cause a denial of service (spoke crash) via spoke-to-spoke traffic, aka Bug ID CSCtz02622.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco IOS	=15.2
Cisco IOS	=15.3

Never miss a vulnerability like this again

Reference Links

http://www.cisco.com/en/US/docs/ios/15_2s/release/notes/15_2s_caveats_15_2_4s.html

Frequently Asked Questions

What is the severity of CVE-2012-3893?
CVE-2012-3893 is classified as a denial of service vulnerability affecting the FlexVPN implementation in Cisco IOS.
How do I fix CVE-2012-3893?
To mitigate CVE-2012-3893, upgrade Cisco IOS to a version that does not have this vulnerability, specifically versions later than 15.3.
Who is affected by CVE-2012-3893?
CVE-2012-3893 affects remote authenticated users who can exploit spoke-to-spoke traffic in Cisco IOS 15.2 and 15.3.
What causes the vulnerability CVE-2012-3893?
CVE-2012-3893 is caused by the FlexVPN implementation mishandling spoke-to-spoke traffic, leading to a potential crash.
Is there a workaround for CVE-2012-3893?
Currently, the recommended approach for CVE-2012-3893 is to upgrade the affected Cisco IOS versions or implement network segmentation to limit spoke-to-spoke traffic.

collector/nvd-index
agent/type
agent/softwarecombine
agent/first-publish-date
collector/mitre-cve
source/MITRE
agent/severity
agent/author
agent/references
agent/last-modified-date
agent/tags
agent/description
agent/event
agent/source
vendor/cisco
canonical/cisco ios
version/cisco ios/15.2
version/cisco ios/15.3

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.

Frequently Asked Questions

What is the severity of CVE-2012-3893?
CVE-2012-3893 is classified as a denial of service vulnerability affecting the FlexVPN implementation in Cisco IOS.
How do I fix CVE-2012-3893?
To mitigate CVE-2012-3893, upgrade Cisco IOS to a version that does not have this vulnerability, specifically versions later than 15.3.
Who is affected by CVE-2012-3893?
CVE-2012-3893 affects remote authenticated users who can exploit spoke-to-spoke traffic in Cisco IOS 15.2 and 15.3.
What causes the vulnerability CVE-2012-3893?
CVE-2012-3893 is caused by the FlexVPN implementation mishandling spoke-to-spoke traffic, leading to a potential crash.
Is there a workaround for CVE-2012-3893?
Currently, the recommended approach for CVE-2012-3893 is to upgrade the affected Cisco IOS versions or implement network segmentation to limit spoke-to-spoke traffic.