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CVE-2021-1565

CVE information

Published

2 years ago

Last Modified

4 months ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

High

Impact Analysis

Description

Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. These vulnerabilities are due to insufficient validation of CAPWAP packets. An attacker could exploit the vulnerabilities by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition..

CVSSv2.0 Score

Severity
Medium
Base Score
5/10
Exploit Score
10/10
Access Vector
Network
Access Complexity
Low
Authentication Required
None
Impact Score
2.9/10
Confidentiality Impact
None
Availability Impact
Partial
Integrity Impact
None

CVSSv3.1 Score

Severity
High
Base Score
8.6/10
Exploit Score
3.9/10
Access Vector
Network
Access Complexity
Low
Privileges Required
None
Impact Score
4/10
Confidentiality Impact
None
Availability Impact
High
Integrity Impact
None
Scope
Changed
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:o:cisco:ios_xe:17.4.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:cisco:ios_xe:3.15.2xbs:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:cisco:ios_xe:3.15.1xbs:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:cisco:ios_xe:17.3.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:cisco:ios_xe:17.3.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:cisco:ios_xe:17.5.1:*:*:*:*:*:*:*
  Yes
- -