Is CVE-2022-20773 in the CISA KEV catalog?

No. CVE-2022-20773 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-20773?

CVE-2022-20773 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2022-20773?

CVE-2022-20773 has an EPSS score of 1.09% (61th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-20773?

Upgrade Umbrella Roaming Client to 3.3.2 or later.

CVE & CISA-KEV Catalog

CVE-2022-20773

HIGH

7.5

CVSS v3

NVD

Description

A vulnerability in the key-based SSH authentication mechanism of Cisco Umbrella Virtual Appliance (VA) could allow an unauthenticated, remote attacker to impersonate a VA. This vulnerability is due to the presence of a static SSH host key. An attacker could exploit this vulnerability by performing a man-in-the-middle attack on an SSH connection to the Umbrella VA. A successful exploit could allow the attacker to learn the administrator credentials, change configurations, or reload the VA. Note: SSH is not enabled by default on the Umbrella VA.

CWE-321 CWE-798Hard-coded Credentials

How to fix

Remediation Available

Umbrella Roaming ClientWindows application

Affected:3.3.2Fixed in:3.3.2Cisco

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

1.09%probability of exploitation in 30 days

61stpercentile

Moderate risk: more likely to be exploited than 61% of all known CVEs.

References

Vendor Advisory1

tools.cisco.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-22.