What is the severity of CVE-2020-3444?

CVE-2020-3444 has been assigned a medium severity rating due to its potential impact on security.

How do I fix CVE-2020-3444?

To remediate CVE-2020-3444, update your Cisco SD-WAN software to versions later than 16.12.2r and 17.2 as per the vendor's guidelines.

Which Cisco products are affected by CVE-2020-3444?

CVE-2020-3444 affects Cisco IOS XE versions up to 16.12.2r and between versions 17.2 and 17.2.1.

Can CVE-2020-3444 be exploited remotely?

Yes, CVE-2020-3444 can be exploited by an unauthenticated remote attacker.

What does CVE-2020-3444 allow attackers to do?

CVE-2020-3444 allows attackers to bypass L3 and L4 traffic filtering on affected devices.

Vulnerability/
CVE-2020-3444

high

7.5

CWE

6/11/2020

13/11/2024

CVE-2020-3444: Cisco SD-WAN Software Packet Filtering Bypass Vulnerability

First published: Fri Nov 06 2020(Updated: )

A vulnerability in the packet filtering features of Cisco SD-WAN Software could allow an unauthenticated, remote attacker to bypass L3 and L4 traffic filters. The vulnerability is due to improper traffic filtering conditions on an affected device. An attacker could exploit this vulnerability by crafting a malicious TCP packet with specific characteristics and sending it to a targeted device. A successful exploit could allow the attacker to bypass the L3 and L4 traffic filters and inject an arbitrary packet into the network.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco IOS XE	<=16.12.2r
Cisco IOS XE	>=17.2<=17.2.1

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Reference Links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cedge-filt-bypass-Y6wZMqm4

Frequently Asked Questions

What is the severity of CVE-2020-3444?
CVE-2020-3444 has been assigned a medium severity rating due to its potential impact on security.
How do I fix CVE-2020-3444?
To remediate CVE-2020-3444, update your Cisco SD-WAN software to versions later than 16.12.2r and 17.2 as per the vendor's guidelines.
Which Cisco products are affected by CVE-2020-3444?
CVE-2020-3444 affects Cisco IOS XE versions up to 16.12.2r and between versions 17.2 and 17.2.1.
Can CVE-2020-3444 be exploited remotely?
Yes, CVE-2020-3444 can be exploited by an unauthenticated remote attacker.
What does CVE-2020-3444 allow attackers to do?
CVE-2020-3444 allows attackers to bypass L3 and L4 traffic filtering on affected devices.

collector/nvd-index
agent/type
agent/softwarecombine
agent/severity
agent/weakness
agent/title
agent/author
agent/references
agent/description
agent/tags
agent/first-publish-date
agent/event
collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/source
vendor/cisco
canonical/cisco ios xe
version/cisco ios xe/16.12.2r
version/cisco ios xe/17.2
version/cisco ios xe/17.2.1

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Frequently Asked Questions

What is the severity of CVE-2020-3444?
CVE-2020-3444 has been assigned a medium severity rating due to its potential impact on security.
How do I fix CVE-2020-3444?
To remediate CVE-2020-3444, update your Cisco SD-WAN software to versions later than 16.12.2r and 17.2 as per the vendor's guidelines.
Which Cisco products are affected by CVE-2020-3444?
CVE-2020-3444 affects Cisco IOS XE versions up to 16.12.2r and between versions 17.2 and 17.2.1.
Can CVE-2020-3444 be exploited remotely?
Yes, CVE-2020-3444 can be exploited by an unauthenticated remote attacker.
What does CVE-2020-3444 allow attackers to do?
CVE-2020-3444 allows attackers to bypass L3 and L4 traffic filtering on affected devices.