CVE-2020-3527CWE-20

Cisco Catalyst 9200 Series Switches Jumbo Frame Denial of Service Vulnerability

High · published September 24, 2020

CVSS v3.0
8.6
EPSS
1%
Percentile
71.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.0
8.6 · HIGH
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01374 · 71.8th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2020-09-24T17:51Z
EPSS history
Timeline
  • 24 SEP 17:51Z
    Cisco Catalyst 9200 Series Switches Jumbo Frame Denial of Service Vulnerability
    cvelistv5