CVE-2021-34768

CVSS V2 High 7.8 CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2021-34768
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-09-23T03:15:20
  • Last Modified Date
  • 2021-10-13T13:12:43
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:cisco:ios_xe:3.15.1xbs:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:3.15.2xbs:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.3.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.3.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.3.2a:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.4.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.5.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:catalyst_9800:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-40:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-40_wireless_controller:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-80:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-80_wireless_controller:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-cl:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-l:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-l-c:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800-l-f:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:catalyst_9800_embedded_wireless_controller:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.8
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
History
Created Old Value New Value Data Type Notes
2022-05-10 06:51:48 Added to TrackCVE
2022-12-05 11:10:11 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-05 11:10:11 2021-09-23T03:15Z 2021-09-23T03:15:20 CVE Published Date updated
2022-12-05 11:10:11 2021-10-13T13:12:43 CVE Modified Date updated
2022-12-05 11:10:11 Analyzed Vulnerability Status updated