CVE-2020-3527

Cisco Catalyst 9200 Series Switches Jumbo Frame Denial of Service Vulnerability

Description

A vulnerability in the Polaris kernel of Cisco Catalyst 9200 Series Switches could allow an unauthenticated, remote attacker to crash the device. The vulnerability is due to insufficient packet size validation. An attacker could exploit this vulnerability by sending jumbo frames or frames larger than the configured MTU size to the management interface of this device. A successful exploit could allow the attacker to crash the device fully before an automatic recovery.

Categories

8.6
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.68% Top 30%
Vendor Advisory cisco.com
Affected: Cisco Cisco IOS XE Software
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-JP-DOS-g5FfGm8y vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-3527?
CVE-2020-3527 has been scored as a high severity vulnerability.
How to fix CVE-2020-3527?
To fix CVE-2020-3527, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-3527 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-3527 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-3527?
CVE-2020-3527 affects Cisco Cisco IOS XE Software.
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