What is CVE-2022-20847?

CVE-2022-20847 is a high-severity vulnerability in Cisco Catalyst 9800, classified under CWE-399. CVSS score: 8.6/10. Published 2022-09-30.

How severe is CVE-2022-20847?

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

Vulnerability in Cisco Catalyst 9800

CVE-2022-20847

A vulnerability in the DHCP processing functionality of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to the improper processing of DHCP messages. An attacker could exploit this vulnerability by sending malicious DHCP messages to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

EPSS: 0.012 (65.4th 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

Weakness classification (CWE)

CWE-399

References

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

Frequently asked questions

What is CVE-2022-20847?: CVE-2022-20847 is a high-severity vulnerability in Cisco Catalyst 9800, classified under CWE-399. CVSS score: 8.6/10. Published 2022-09-30.
How severe is CVE-2022-20847?: High severity. CVSS v3 base score is 8.6 out of 10.