What is CVE-2022-20856?

CVE-2022-20856 is a high-severity vulnerability in Cisco Catalyst_9800, classified under CWE-664. CVSS score: 8.6/10. Published 2022-09-30.

How severe is CVE-2022-20856?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in Cisco Catalyst_9800

CVE-2022-20856

A vulnerability in the processing of Control and Provisioning of Wireless Access Points (CAPWAP) Mobility messages in Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to…

EPSS: 0.011 (62.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Cisco Catalyst_9800
Cisco Catalyst_9800-40
Cisco Catalyst_9800-80
Cisco Catalyst_9800-cl
Cisco Catalyst_9800-l
Cisco Catalyst_9800-l-c
Cisco Catalyst_9800-l-f
Cisco Ios Xe Software — versions n/a
Cisco Ios_xe — versions 17.3.4c

Weakness classification (CWE)

CWE-664

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2022-20856?: CVE-2022-20856 is a high-severity vulnerability in Cisco Catalyst_9800, classified under CWE-664. CVSS score: 8.6/10. Published 2022-09-30.
How severe is CVE-2022-20856?: High severity. CVSS v3 base score is 8.6 out of 10.